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DSD 412 DC Elevator Drive Technical Manual

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Contents

1. 3 PH DRIVE ISOLATION TRANSFORMER FUSED DISCONNECT AS REQ D MDSPR X x Z BLDG SUPPLY SEE NOTE 5 f Pd 42 3 Fi GND T T 115VAC 115VAC HI Lo 4 POWER SUPPLY 05 00090 0293 5 4 Ke gt O lt KAA MDSPR PCU i l CONTROLLED MOTOR PILOT THERMOSTAT 82 RELAY SEE NOTE 7 gt 2006 G M RC e e4VDC DRV FAN TB1 78 eG LPSPR OPTION O J SAFETY CHAIN Lpr 1M H He a RC 5 SENSE SENSE tS LPR LOUP PICKUP RELAY ee 1234 ace Bace SINGLE PHASE INPUT 51 Lea VOLTAGE TO MOTOR FIELD SUPPLY SEE NOTE 3 I pe ACI aci LIA REFERENCE OREN TBI TABLE 1 FOR CORRECT PCB F2 SETUP gt 6 9AMPS x Xi Ws 16AMPS MOTOR ace Le 40 FIELD a TB4 FIELD CONTROL PCB FD x x 46503594 0010 TB4 ACE TABLE I EUR FA CONNECTION INFORMATION 2 DETAIL A SINGLE PHASE INPUT VOLTAGE TO MOTOR FIELD SUPPLY Lox SEE NOTE 3 TBS T
2. L1 12 15 GND ARM L1 3 ARMCO pe i I I I t COND RANGE 1 0 14 750 1 0 600 4 800 300 T 4 TORQUE 15 50 50 375 ARM TORQUE GAUGE Q h T4 10AWG 25 in Ibs NN ZL fe XS ARM 8AWG 50 in lbs 6 4 35 in lbs j 1 0 40 in lbs j j az OF 9 J LJ 1 J LJ T 6 MOTOR FIELD CONNECTIONS 1 5 2 2 2 2 2 Lx 1 12 50 MIN WIRE BEND 2 58 ALLOWANCE MIN DOOR SWING 17 09 1 94 58 10 75 GND t T A 1 T T T T 5 1 83 i 4384 GND A4 L TB3 ol EL UNPLUG TB3 5 FROM HEADER 4 WHILE 2 INSTALLING WIRES 2 6 E E o 219 1 0 19 50 23 49 2 7 2 59 ARMATURE Es 9 VOLTAGE 55 FEEDBACK ga TB 1 per s Ls p Es uy h O bi f 59 1 94 L 1 69 AIR FLOW FAN 1 4 00 gig MINIMUM CLEARANCE REQUIRED mu Figure 28 Drive Chasis Outline D
3. FRONT VIEW OF POWER CUBE 190A 5351125 ARM gt L1 Le L3 ARMC l l i9 Nu D 3 T83 8 7 6 5 4 3 2 1 228 CUBE PCB 2 46803577 1XXX 185 ARMATURE VOLTAGE FEEDBACK 2 2 m TBI TERMINAL BLOCK QTY PER DRIVE SPECIFICATION 123456789 1011213415161718 19 20 el ee 23 24 25 26 27 28 29 30 E EU TBI 1 43 44 45 46 47 48 49 50 5 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 1475 16 T 8 9 8 8 OSE 5 60 4 gt 2520 s RTI FAN Figure 30 Layout DSD 412 195 Amp 119 LAYOUT DRAWING 300A FRONT L1 VIEW OF POWER CUBE 300A 53ST200X XXXX ES ARMC sS N GND CIE TB3 8 8 6 4 3 2 1 2 CUBE LD PCB 46803577 1XXX L ARMATURE
4. 3 Press the ENTER key to actually perform the Load Defaults transfer After the transfer has completed the SCDU displays the word dOnE Green LED Lit d Green LED Lit 4 A cycling of control power is then necessary to implement the default settings onto the display Self Tune Function The DSD 412 Elevator drive has a built in current regulator SELF TUNING function 997 When activated this feature measures total motor armature circuit resistance inductance including wiring and the field L R time constant The drive then uses the measured value in conjunction with the parameter entered for CROSSOVER FREQUENCY to calculate integral and proportional gains for the current regulator and to set the field regulator gains properly After running the Self Tune Parameter Measurement function the values for armature resistance and armature inductance are stored in NVRAM It is important to note that it is possible to override the values that have been dynamically calculated for Armature Resistance Armature Inductance and Field L R Time Constant by the USE SELF TUNE item in the parameter menu Function 2 The dynamically calculated values are used if USE SELF TUNE is set to ON while the manually entered values entered in parameter s 4 6 and 51 are used if this item is set to OFF STANDARD CONTROL DISPLAY OPERATION NOTE Ar
5. CUBE HP Max Inpt 1 0 53ST 1 002 003 525 3 005 007 525 6 010 015 525 9 020 025 525 030 12 040 050 525 060 15 075 100 525 125 18 150 525 21 200 525 24 250 525 28 300 525 31 400 525 34 500 525 37 600 525 40 700 525 43 800 525 44 040 050 600 060 45 075 100 600 125 46 200 600 47 300 600 48 400 600 49 600 600 50 800 600 This number should agree with the DSD 412 drive data nameplate Table 9 Cube I D Number 66 FIELD CURRENT RANGE 2 200HP Indicates actual SW1 setting 689 SW1 Minimum Maximum Read Back Rated Field Rated Field Amps DC Amps DC 1 0 2 1 9 3 7 0 16 0 6 2 0 6 9 8 16 1 40 0 FIELD CURRENT RANGE 250 800HP Indicates actual SW1 setting 689 SW1 Minimum Maximum Read Back Rated Field Rated Field Amps DC Amps DC 3 2 0 16 0 8 16 1 40 0 Table 10 Field Current Range Drive Set Up Field Regulator Set Up Proper control of motor field current requires knowledge of the motor field resistance the electrical time constant and the line voltage available to control power to the motor field Motor field resistance is calculated from the settings of Rated Field Volts 52 and Full Field Current 50 The time constant and available AC input voltage is supplied by settings 51 and 55 If a separate source of field circuit voltage is used 55 should be set at tha
6. i ARMATURE SNUBBER CURRENT oe TRANSDUCE Z R 00000000 29899909 99909099 28 J29 J30 331 5 CUBE 1 0 BRIDGE THERMISTOR 00000000 ARMATURE INTERFACE PCB DC OUTPUT FIELD SUPPLY AC INPUT FOR FIELD SUPPLY Figure 3 Component Layout Front View 18 INTRODUCTION POWER SUPPLY COVER A4 TB42 A4 POWER SUPPLY 4 TB3 A1 MAIN CONTROL PCB Figure 4 Component Layout Right Side View 19 INTRODUCTION Power Conversion Unit Description The Power Conversion Unit circuitry has three major functions 1 converts three phase AC input power to variable DC voltage for application to a motor armature 2 It converts motor generated DC power to three phase power to feed back to the line 3 It converts single phase AC input power to a variable DC voltage for application to a motor field Two sources of power are required A three phase power isolation transformer adjusts the utility mains voltage to that required to operate DSD 412 efficiently with the needs of the DC hoist
7. F 9 T O Both Leds off Both LEDs Off Remove power from the drive reverse the Armature Feedback wires and repeat this test until the SCDU displays the PASS message This fault also occurs if the Armature FB wires are not connected DRIVE SETUP AND ADJUSTMENT Drive Setup amp Adjustments Software Operating Features e The DSD 412 is configured by software to operate geared and gearless elevators and lifts The SA407 Drive Control software contains desirable feature improvements from the previous version SA274 Basic features include User choice of operating speed reference External analog reference follower Serial link reference follower Internal reference generator with S Curve smoothing to one of 7 preset speeds 8 speeds including zero e User choice of ft min or m sec speed programming and display units e User choice between binary or progressive relay selected internal preset speeds e Selectable input control logic for Run Up Run Down or Run Direction relay control with internal preset speeds e exclusive E Reg elevator velocity regulator Simplified analog or serial link Pre Torque operation to prevent roll back on starts e Controlled Current Ramp Down to prevent elevator brake thumping at stops e Internal frequency notch filter to reject rope resonance interference e Closed loop motor field current regulator wi
8. TEST FUNCTION DESCRIPTION POINT TP1 24V SUPPLY 24V SUPPLY TP2 15V SUPPLY 15V SUPPLY TP3 15 SUPPLY 15 SUPPLY TP4 5V SUPPLY 5V SUPPLY TP5 EMERGENCY STOP OPEN HI EMERGENCY STOP IS OPEN TP6 THERMOSTAT OPEN HI THERMOSTAT IS OPEN TP7 LOW PWR SUPPLY WARN HI LOW 115VAC TO PWR SUPPLY TP8 COMMON COMMON TP24 COMMON COMMON TP25 COMMON COMMON TP47 COMMON COMMON TP9 A SCAN TIME HI DCU A SCAN IS RUNNING TP10 BSCAN TIME HI DCU B SCAN IS RUNNING TP11 C SCAN TIME HI DCU C SCAN IS RUNNING 12 DSCAN TIME HI DCU D SCAN IS RUNNING TP13 LAN Chip select for LAN mode High Active TP14 E O EVEN ODD Address Select High 5V 15 F SCAN TIME HI DCU F Scan is running TP16 E SCAN TIME HI DCU E Scan is running 17 ABCDE SCAN TIME HI DCR ABCDE or F Scan s are running TP18 BUS DIR N A TP19 RESERVED FOR TESTING N A TP20 RESERVED FOR TESTING N A TP21 RESERVED FOR TESTING N A TP22 ARMATURE DISABLE Logic 1 when Forward or Reverse Bridge is firing Jumper to COMMON to disable Bridge TP23 WATCHDOG DISABLE Logic 0 during POWER UP CPU RESET Otherwise a Logic 1 TP26 ANALOG OUTPUT TB1 26 Analog Output Signal on TB1 26 TP27 ANALOG OUTPUT TB1 27 Analog Output Signal on TB1 25 MAINTENANCE TEST FUNCTION DESCRIPTION POINT TP28 CBLAG C B PHASE SIGNAL TP29 BALAG B A PHASE SIGNAL TP30 ARMATURE VOLTAGE SCALING 100 1
9. id 4 Press the ENTER key to transfer the value in the SCDU display to the actual value used by the drive Note that the green LED will now light to indicate that this value is now the actual value for this parameter Red LED Lit 37 1 1 l Green LED Lit If the ENTER key is pressed while the display is indicating that the upper or lower limit has been exceeded the display will change to the appropriate limit and the green LED will light 5 Press the DATA FCTN key to put the SCDU back into the Function level As with the example above the SCDU display will be similar to 4 0 B Both LED s Off All changes made become active values upon pressing the ENTER key They remain active until the next reset or until the drive is powered down When the drive is reset or powered up the value reverts to the value stored in NVRAM If changes are to be permanent use function 994 to save the changed value in NVRAM Due to programming considerations it may be possible to access a value that cannot be changed In this case the CDU function will proceed as described until the ENTER key is pressed to change the value In this case the value will simply ignore any requested changes and remain the same Viewing Monitor Functions Items that would typically fall into this category are Speed Feedback Armature Current and Armature Voltage To view one of these valu
10. Both LEDs Off After this lamp test is completed an internal check is made to determine if the NVRAM chips have ever been used before or if the EPROM s are the same as before power down If not the drive software will attempt to load the defaults into the NVRAM chips The SCDU displays the word Prot if the NV RAM PROTECTION switch is in the position that will not allow any updates of the NVRAM P t If the display shows Prot it is necessary to move the NV RAM PROTECT switch to the OFF position and press the CPU RESET button in order to load defaults into NVRAM and restart the drive Then set the NV RAM 35 PROTECT switch back to ON This Prot message will only happen when A The drive is powered up for the very first time B If the software in the drive is changed C The NVRAM chip U56 is changed After the LED lamp test has completed the drive software will now perform a fuse test on each of the three line fuses If any power conversion fuse is open the SCDU will indicate this on its display The SCDU display is arranged in a similar manner to the physical placement of the 3 line fuses in the power cube The middle segments of the three right most digits are used to indicate blown fuses For example if the left most line fuse is bad the SCDU will report it as follows B Red LED Lit If any two or more fuses are blown the SCDU display wil
11. This display is the reference velocity after accel decel rate control conditioning Units are as set in function 17 Function 603 Pre Torque Input Units This display is the pre torque reference as applied to starting the velocity regulator The value is latched to display the pre torque value used at the start of arun Prior to a start the displayed value is that of the analog or serial link input This function 64 works only when pre torque enable control functions 114 is turned ON Units are a percent of Rated Motor Amps Function 609 CEMF Vdc Units VDC This display is the CEMF of the motor calculated from measured motor voltage current and armature circuit resistance functions 4 Function 610 Motor Armature V Units VDC This display is the measured voltage output to the motor armature circuit Function 611 Motor Arm Current Units Amps DC This display is the measured drive output to the motor armature circuit Function 612 Motor Field Current Units Amps DC This display is the measured motor field current Function 613 Measured Motor Resistance Units OHMS This is the measured motor armature circuit resistance calculated during self tune Function 614 Measured Motor Inductance Units HENRIES This is the measured motor armature circuit inductance calculated during self tune Function 615 Measured Field L R Time Constant Units Seconds This is the motor field
12. 920 LOAD VOLTAGE SETTING FAULT DSD power down is required Declared if the Rated Armature Voltage 7 value is outside the acceptable range of 150 to 700 VDC 921 BRIDGE RATING FAULT DSD power down is required The bridge type is determined by reading a sense resistor on the Cube ID PCB plugged into the A2 Armature Interface PCB The resistor value identifies the ampere rating and current feedback scaling of the physical hardware This failure occurs if the computer cannot identify the drive size Possible causes J14 on Main Control PCB is not seated properly Missing or wrong Cube ID PCB Wrong PCU software in U13 amp 14 Faulty Armature Interface PCB replace PCB Faulty Drive Control PCB replace PCB 923 LOAD CURRENT SETTING FAULT DSD power down is required This fault is declared if a number is entered for Rated Armature Current 3 that is outside the acceptable range of 0 125 to 2 0 times the bridge current rating as determined by the bridge sense resistor on the Cube ID PCB on the Armature Interface PCB 924 FIELD CURRENT SETTING FAULT DSD power down is required This fault is declared if a number is entered for Rated Field Current 50 that is outside the acceptable range of the Field Interface board A3 current rating as determined by the field sense resistor selected by SW1 on the Field Interface PCB 925 FIELD SENSE FAULT DSD power down is required The field bridge rating
13. M HIGH SPEED Output becomes active when encoder speed is greater than the setting of function 64 in either direction This is the opposite logical state of F May be used to prevent or enable door pre opening logic N BRAKE PICK Output K3 becomes active for time function 89 each time a Brake Lift sequence is started DRIVE SETUP AND ADJUSTMENT Will be de energized when the brake should be dropped P DSPR CONTROL Output K4 is active to pull in an external power control relay when the drive is supposed to be powered up for operation Output becomes inactive after a DSPR time delay time out See function 88 FUNCTION SELECT 1 2 3 4 SETTING DEFAULT Output Circuit A1TB1 SELECTED FUNCTION CONNECTION Output K3 Controlled by Function 183 A1TB1 36 amp 37 A F Output 4 Controlled by Function 184 A1TB1 78 B A G P Open Collector Type Output K5 Controlled by Function 185 A1TB1 79 H Open Collector Type Output K6 Controlled by Function 186 A1TB1 83 D J K L Open Collector Type Output K7 Controlled by Function 187 A1TB1 84 E F Open Collector Type Table 7 Programmable Output Selections Function 190 Notch Depth Units none Range 10 0 Default 0 Controls the depth of the notch filter used for a rope resonance counter measure When set to zero the filter is not active Increase the setting toward 10
14. Maintenance Preventive Maintenance Repair and Replacement Procedures Printed Circuit Boards Drive Control PCB Replacement IC Replacement Testing and Replacement of Power Components Testing and Replacement of Power Semiconductors and Snubber Components Testing and Replacement of the Motor Field Control Module and PCB Repair of the 195Amp Assembly Repair of 300Amp Assembly Spare Parts 100 100 100 106 106 106 107 107 108 110 113 List Of Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Drive Parameters Monitor Functions Misc Commands Fault References Binary Preset Speed Select Progressive Preset Speed Operation Programmable Output Selections Notch Period steps Cube 1 0 Number Field Current Range Binary Input Control Progressive Input Control Fault Code Descriptions Connector Definitions Table 15 Test Point Definitions Table 16 Table 17 SCR Gate Resistance Testing Spare Parts List Of Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 DSD 412 Block Diagram A DSD 412 Block Diagram B Component Layout Front View Component Layout Right Side View Common Problems in Encoder Mounting Typical Power Wiring Typical Analog Signal Wiring Typical Serial Signal Wiring Power Signal Wiring Notes Figure 10 Drive Brake Control
15. Component problem Feedback voltage divider ratios do not match may occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 F936 E Stop contact was opened during test Test data is not valid Jumper E Stop circuit and re test occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 F937 Low read back volts from motor armature circuit Probable Causes Missing wire to armature voltage feedback at 2 5 1 amp A2TB1 2 Component problem Feedback voltage divider ratio does not match that identified in Cube ID PCB occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 F938 Low read back volts from DC bus circuit Probable Causes Missing wire to bus voltage feedback Discrete wires on drives larger than 300 amps DC Component problem Feedback voltage divider ratio does not match that identified in Cube ID PCB may occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 F939 Faulty Field Control Hardware Probable Causes Component problem Replace Field Interface Board If fault is still present replace the Main Control Board may only occur during power up F940 Field Current Feedback A D Saturated Field A D reading is saturated for more than 15 seconds Probable Causes Component problem Replace Field Interface Board If fault is still present replace the Main Control Board 941 MOTOR THEMOSTAT FAULT Indicates that the drive has sensed th
16. N259 C002 This byte contains additional logic commands from the host to the DSD 412 Drive function 104 must be set to a 1 for this control to be active BO 0 No gain reduction B1 B7 are spares Bytes 5 amp 6 17 Velocity loop gain reduction is ON N259 C000 These two bytes represent a signed 16 bit numeric value The definition of this value is determined by the status of Byte 3 Bit 7 If bit 7 is a 1 the value will be interpreted as a pre torque signal If byte 3 bit 7 is a 0 the value will be interpreted as a velocity reference The limits for this value are 7FFFh 1 per unit 0000h zero 8000h 1 0 per unit Byte 7 The data in this byte is passed to the PCDU routines and is interpreted as a new PCDU keystroke If no key is being pressed a great majority of the time the value of this byte will be 00 It is the responsibility of the host to insure that this byte contains the new non zero keystroke data for only one 15 MS transmission period If this is not done the DSD 412 will act as if a given key is being held down instead of being pressed and released The host must pace the placement of non zero data in this byte no more frequently than one character every 250 MS 80 DRIVE SETUP This is done to give the PCDU routines enough time to transmit the proper response display possibly up to 32 ASCII characters before the next keystroke is read Byte 8 This byte contains the calculated checksum of
17. XL A2 1 CAD TERT AE DBRX 46502976 ii D C MOTOR 1 A2 TBS Figure 6 Typical Power Wiring 29 INTERCONNECT DRAWING TBI TBI INPUT OUTPUT 48 24vDC CONNECTIONS USING P PRIVE K NO ANALOG INTERFACE 59 12 LOOP CONTACTOR AUX X MODEL NUMBER r La ENERGIZED WHEN NO 53STXXXX 3X00 L NE FAULT RESET X 59 1 PRESENT 49 67 1 40 gt 8 67 2 OUTPUTS ALARM RELAY MAY 8 Soldat 38 gt ENERGIZED OR 50 67 3 2A AT 30VDC ET DE ENERGIZED ON DRIVE amp FIELD ENABLE X 996 2 ALARMS SEE TECH xx 1218774 32 MANUAL FUNCTION RAMP 2 SELECT 4 182 RAMP 3 SELECT na r LOGIC 36 gt 10 67 6 INPUTS 54 pa ie 52 67 7 37 so 11 68 0 S1 KK 53 68 1 S9 4 F178 gt PROGRAMMABLE Sexx KS r FUNCTION OUTPUTS 12 68 2 PAN REFER TO F 183 e 53 NODE 255 29 9179 187 54 68 3 COLLECTOR K6 OUTPUTS 24v RATED 83 1 S00mA e4VDC 55 6 10V r DIFF K7 INPUT
18. Table 1 Drive Parameters 11 READ OUT AND CONTROL FUNCTIONS FNCT DESCRIPTION UNIT FNCT DESCRIPTION UNIT 600 CAR SPEED 690 PCU VERSION 404 601 MOTOR RPM RPM 691 PCU RELEASE 602 SPEED REF 2 692 DAY PRE TORQ x 603 SIGN 693 MONTH 609 VOLTS VDC 695 YEAR 610 MOTORARMV VDC 696 BETA P 611 MOTOR ARM ADC 697 VERSION SA 407 612 MOTOR FIELD ADC 698 DCU RELEASE 613 MEASURED R OHM 699 CUSTOMER ID 9 614 MEASURED L HNY Table 2 Monitor Functions 615 MEAS FIELD SEC FNCT DESCRIPTION 22 CLEAR ERRORS LIST MEASURED SPEED ERROR 000 VIEW FAULT LIST 800 VIEW ERROR LIST 617 LINE FREQ HZ m FAULT ERROR ACTIONS 618 HEAT SINK TEMP DEGC 686 TRACE 981 VERIFY bo FMEASUREDAC yac 993 CLEAR NV RAM 620 FIELD TRACKING PU 994 SAVE RECALL FUNCTION 995 LOAD DEFAULTS 621 a COMM Locic 997 SELF TUNE 688 CUBE 1 0 998 PCU DIAGNOSTICS 689 FIELD RANGE Table 3 Misc Commands 12 FAULT DESCRIPTION 97 OVERSPEED TRIP a TACH ENCODER LOSS d REVERSE TACH ENCODER 117 118 SERIAL COM FAULT 400 MOTOR OVERLOAD m EXCESSIVE FIELD CURRENT 402 CONTACTOR FAULT 5 MIN FULL FIELD 403 FAULT ER OPEN ARMATURE CIRCUIT FAULT SAFETY CIRCUIT 405 FAULT 1096 LOW LINE 406 ALARM 40
19. Two adjustment functions are provided to help testing of the elevator governor over speed trip Function 81 defines a reference multiplier value Logic function 80 turns the effect of that multiplier on and off However be aware that the Drive Over Speed trip fault F97 set by function 12 is a fixed percent of rated rpm and will also be tested and indeed should trip To ensure that the drive Over Speed Trip does not interfere with the governor test one must temporarily raise the value set in function 12 to be above the trip speed of the governor Anti Rollback ARB When enabled the drive will utilize a position velocity regulator to combat elevator rollback on starting and during re leveling See descriptions for functions 130 through 133 Drive Standby Power Reduction DSPR Drive turns off 3 phase power to the transformer during periods of non use to save 48 energy See descriptions functions 88 and 184 Brake Control Logic Two programmable logic outputs control external power relays The Brake Lift output will indicate when the drive is holding the car and the elevator brake should be released lifted and held The timed Brake Pick output is intended to assist lifting of the brake Removal of the drive Run logic command will cause the drive to go to zero speed and hold the car for an adjustable time while the brake is dropped set Motor current ramp down will be delayed until after the brake has dropped Se
20. VOLTAGE FEEDBACK 2 5 4 MN 1 9AMP 2 6 9AMP 1 16 40AMP Je is V TBE TERMINAL BLOCK QTY PER DRIVE SPECIFICATION o we 123456789 1011213415161718 19 20 21 22 23 24 25 627 8090 3 2 G A 2 36 37 3839444 N 43 44 45 46 47 48 49 55 32 53 54 55 57 58 59 60 6162 63 64 65 66 67 68 69 70 7 72 73 74 75 76 77 78 79 80 81 82 83 84 O X Figure 31 Layout DSD 412 300 Amp 120 DSD 412 DC Elevator Drive Data subject to change without notice DSD is a trademarks of Magnetek Inc Magnetek Elevator Products N136 W4863 Campbell Drive Menomonee Falls Wisconsin 53051 800 236 1705 262 252 6999 FAX 262 790 4142 http www elevatordrives com MAGNETEK UNCOMMON POWER CS00407 RO6 2005 Magnetek Inc 07 05 Magnetek Elevator Products Europe 20 Drake Mews Crownhill Milton Keynes Bucks MK8 OER UK 44 0 1908 261427 FAX 44 0 1908 261674
21. regulator The first step for good ARB performance is to disable ARB by setting 130 to 0 zero and to tune all other E Reg adjustments for a smooth ride and good floor to floor elevator performance Be sure that the car weight and counterweights have been adjusted to be at the final values Follow the suggested procedures for tuning E Reg as listed in this Tech Manual Ignore elevator rollback while adjusting primary elevator performance features If rope resonance exists also adjust the notch filter for minimum interference Then tune up ARB last as necessary to prevent elevator rollback with an unbalanced payload 2 After all other adjustments are satisfactory set 130 to a 1 to enable ARB when starting an elevator run Set up the following initial ARB adjustment values Be sure to read ADJUSTMENT HINTS and CAUTIONS listed below a Set 131 ARB Bandwidth to 2 times the setting in 40 b Set the initial value of 132 ARB damping to 0 5 If the drive will be using an internally generated velocity reference or serial link commands 110 set to 2 or 3 set 133 ARB Speed Threshold to 0 0 If the drive will be using an external analog velocity reference 110 set to 1 set 133 to 0 5 3 With the car empty at a convenient landing prepare to start the elevator drive call for zero velocity from the car controller via the normal way release DRIVE SETUP the elevator brake and observe any car motion When th
22. the Drive Control PCB is properly grounded This fault is usually caused by electrical noise causing the DSD 412 microprocessor to malfunction If this occurs when the car is stationary the car controller can quickly reset it An elevator passenger doesn t see any effect Prot CORRUPTED NVRAM DATA The NVRAM has lost parameter set up data This fault will occur if the battery within NVRAM chip U56 is weak The drive display will show Prot if a loss of data is detected when power has been re applied and the processor attempts to load in default values while the NV Protect switch is in the safe ON position replace U56 every 8 years POWER LOSS Loss of 115 VAC control power Check cable connection at TB3 of Power Supply Assembly A4 Ensure that control power is always above 92 VAC BLOWN FUSES or loss of 3 phase input power Check for blown line fuses If fuses are not blown verify that AC input voltage to drive is present Verify that power supply voltages are valid at TP1 2 3 amp 4 on the main PCB Check connections to the Armature Interface PCB and ribbon cable at J4 F929 Motor field current does not reduce to near zero within 6 seconds Verify motor field current with an independent clamp on DC ammeter Probable causes Incorrect phasing of Vac supply to field control module Provide correct single phase supply wiring per connections shown in Figs 2 1 of this manual Faulty
23. the field current to zero on motors with a shunt field in order to minimize motor rotation However a PERMANENT MAGNET motor must have its shaft locked mechanically prior to running the PCU Diagnostics routine If the PCU detects significant motor voltage during the test the PCU Diagnostics Function will abort The process for accessing the PCU Diagnostics Function is as follows 1 Usethe A and keys to select Function 998 from the function level The two colored LEDs remain off during this step 99 8 Both LEDs off 2 Press the DATA FCTN key to enter the Data level for Function 998 The green LED is now lit to indicate that this function is currently being accessed The SCDU prompts the user to press the ENTER key by displaying t r Green LED Lit 3 Press the ENTER key to actually start the PCU diagnostics While the PCU is per forming the Function 998 Diagnostics test the SCDU displays t E 51 The PCU will not begin the diagnostic routines if a SEVERE PCU FAULT exists The PCU Green LED Lit STANDARD CONTROL DISPLAY OPERATION will declare a SEVERE FAULT under several conditions including an IST Fault power supply failure line sync loss low line or DCU failure If aSEVERE FAULT exists when the PCU starts the diagnostic tests the SCDU displays If the PCU detects one or more shorted SCR doubler packs
24. 0 0 15 0 Default 2 0 See function 120 This value sets the magnitude sensitivity of the Speed Error is Low Detector Units are a percent of rated speed function 17 Function 130 ARB Mode Units Range 0 2 Default 0 This selects between 3 possible Anti Rollback operating modes 0 to disable all Anti Rollback features Only E Reg will be engaged 1 to enable Anti Rollback when the drive is started 2 to enable Anti Rollback when starting the drive and when the velocity again comes to a stop at the next landing Function 131 ARB Bandwidth Units RAD Range 1 30 Default 6 Determines the gain of the velocity and position regulator when ARB is ON This is the unity gain crossover frequency in Radians sec Increasing this setting will cause the position loop to respond faster with less accumulated position error DRIVE SETUP AND ADJUSTMENT Function 132 ARB Damping Units Range 0 1 10 Default 2 0 Adjusts damping of the position regulator when ARB is ON Increasing this setting will cause a smoother but slower recovery of position error Reducing this setting will let ARB recover a position error more quickly and abruptly Function 133 ARB Speed Threshold Units Range 0 0 10 of rated speed Default 0 0 Determines the reference speed where ARB will be turned OFF and E Reg will be engaged when the drive is started if function 130 is set to 1 or 2 This setting s
25. 150 Off amp 112 On 54 53 52 51 50 Pre set Use 0 0 0 0 0 none Zero Speed select 0 0 0 0 1 1 Inspection speed w R R 1 rates 0 0 0 1 0 2 Leveling Speed w R R 1 0 0 1 1 0 3 1 Floor Run Speed w R R 2 0 1 1 1 0 4 Multi floor Run Speed w R R 3 1 1 1 1 0 5 Express zone speed optional Table 12 Progressive Input Control 76 2 Stopping Distance The internal S Curve velocity generator of the Magnetek DSD 412 drive is digital in nature and is therefore very repeatable The Accel Decel time is fixed per the selected rate adjustment setting The time setting represents the total acceleration time from zero to rated speed or vice versa and is independent of any S Curve selection The starting and stopping distance from and to any other digitally pre set speed can be pre calculated and will also be repeatable The distance traveled during deceleration to zero or to a lower leveling speed will be Tsec x DeltaFPM RatedFPM x LevelingFPM 5 DeltaFPM 10 inches Where DeltaFPM is the change in steady state running speed in feet per minute However there is fixed delay and an uncertainty of actual time to recognize and start obeying a logic command to start the deceleration cycle The fixed delay is 0 01 seconds and the uncertainty is 0 018 seconds maximum During this time the elevator will still be moving at running speed creating an uncertainty in the actual stopping distance This delay plus uncertainty
26. 24v 6 NODE 247 32 1 PRETORQUE ts DUAL DIFF s REFERENCE INPUT 99 7 4 CHANNEL 1 40 F DIFF CUM s INPUT 77 SH COMM 57 63 4 10V_SPEED 10 VOLT REFERENCE DIFF sH 62 8 INPUT NODE 255 64 AUTO REFERENCE 98 64 40 MiLLIAM 40 SPEED Po pee ANS her REFERENCE INPUT 67 COMM 69 SH e4v Be ANALOG OUTPUT 0 SH DE 33 01454 poe ANALOG OUTPUT 1 x 5 ANALOG DIGITAL DUTPUTS 33 146 ENCODER n 3 FDBK TACH o y i CHAN 7 um 30 SHIELD 47 C i i 1 22 g pel 44 COMM J2 RJ 12 SEE CONNECTION NOTE RS232 PCDU L GND DATA FLOW Figure 7 Typical Analog Signal Wiring 30 DIGITAL ENCODER INTERCONNECT DRAWING TH TBI INPUT QUTPUT DRIVE OK NO 48 24vpc CONNECTIONS USING E FAULTS RELAY e Mm LOOP CONTACTOR AUX X SERIAE INTERFACE SUE ENERGIZED WHEN NO 1M MODEL NUMBER ei gt FAULTS ARE S3STXXXX 4X00 59 1 PRESENT 43 67 1 40 a e ez 2 ess OPUS ALARM RELAY MAY Puts SOO
27. 403 5 MIN FULL FIELD FAULT 404 OPEN ARMATURE CIRCUIT FAULT 405 SAFETY CIRCUIT FAULT 406 10 LOW LINE ALARM 407 EXCESSIVE DCU CEMF ALARM 408 EXCESSIVE PCU CEMF FAULT 409 UNEXPECTED PCU RESET 410 SPEED ERROR FAULT 411 MAX AUTO RESETS ATTEMPTED 413 FIELD CURRENT TRACKING FAULT 414 SOFTWARE COMPATABILITY FAULT PCU ERRORS DISPLAY DESCRIPTION 900 PCU LOOP FAULT 901 PCU IST FAULT 902 POWER SUPPLY FAULT 903 LINE SYNC FAILURE 904 LOW LINE FAULT 905 FIELD LOSS 906 DCU FAILURE 907 THERMISTOR FAULT 908 OVER TEMPERATURE 909 EXCESSIVE RIPPLE 910 BLOWN FUSE 911 SHORTED SCR 912 OPEN SCR 915 PARAMETER SETUP FAULT 916 FORCING FAULT 917 REVERSE ARM V FEEDBACK 919 RATED VAC SETTING ERROR 920 RATED ARM VOLT SETTING 921 BRIDGE RATING FAULT 923 RATED ARM 1 SETTING ERROR 924 RATED FIELD SETTING ERROR 925 FIELD PCB SENSE FAULT 926 PCU WATCHDOG TIMEOUT FAULT 929 FIELD CURR WON T GO TO ZERO 930 FIELD CURR WON T GO TO RATED 931 OPEN CIRCUIT CEMF FAULT 932 CLOSED CIRCUIT CEMF FAULT 933 ARM CURRENT WON T INCREASE 934 LOW ARM INDUCTANCE 935 WRONG BUS VS ARM VOLTS FBK 936 E STOP OPENED DURING TEST 937 LOW ARMATURE VOLTS FBK 938 LOW BUS VOLTS FBK 939 FIELD FB HARDWARE FAILURE 940 FIELD A D OVERFLOW FAILURE 941 MOTOR THERMOSTAT OPEN Prot CORRUPTED NV RAM DATA Troubleshooting DRIVE FAULTS ERROR FAULT C
28. 54 amp 55 408 PCU CEMF FAULT The CEMF of the motor exceeded 118 of the rated VAC input voltage to the Drive This fault causes a drive shut down to prevent fuse blowing Causes 3 Phase Input AC Line Voltage is low Check and correct Incorrect motor field current setting or field regulator miss operation causing excessive CEMF Check amp correct Excessive drive speed overshoot Correct with velocity regulator adjustments Check and correct motor field control dynamic tuning to prevent CEMF overshoot Review and verify settings for 49 50 51 52 54 amp 55 409 PCU RESET PCU processor was unexpectedly reset Verify that correct PCU software and revision level is being used Possible problem with main circuit card hardware Look for external noise interference Ensure that equipment and signal grounding connections are proper Correct as necessary If problem remains replace Drive Control PCB 410 SPEED ERROR TRIP FAULT Indicates that a large speed error existed for a significant period of time Look for dragging brake or weak motor field See the explanations for 99 amp 100 411 MAX AUTO RESETS ATTEMPTED Indicates that more than 5 automatic resets were necessary in less than 20 minutes of accumulated time See the explanation for 101 413 FIELD CURRENT TRACKING FAULT Indicates that the ACTUAL field current is failing to track the field current COMMAND by more t
29. PCB 300A 5 1 46503089 0010 1 Table 10 Pos Ribbon 25A Drive Cont A1 05P00034 0762 1 50A J13 05P00034 0762 1 100A To 05P00034 0762 1 195A Field Interface 05P00034 0750 1 300A PCB A3 J33 46S03396 0080 1 113 SPARE PARTS Description DSD 412 Reference Magnetek Part or Quantity Rating Designator kit Number Per Drive Cable 20 Pos Ribbon ALL Drive Cont A1 05P00034 0751 1 J11 To Pwr Supply A4 441 Cable 40 Pos Ribbon ALL Drive Cont A1 05P00034 0752 1 J14 To Arm Intfc A2 J24 Assembly Harness Gates 25A 46503596 0040 6 50A Armature 2 46503596 0040 6 100A To 46503596 0040 6 195A SCR Gate 46503596 0030 6 Conns 300A 300A Drive has Gate wiring on SCRs Quick disconnect Fastons on SCR wires connect to Armature Intfc 2 Pluggable Terminal Block All Connects to TB3 05P00060 0373 1 8 position female of Power Supply 4 Cable 115 VAC Cooling ALL Connects 115 05P00016 0045 1 Fan with Plug Vac to fan Required for DSPR option addition PCDU Hand held Service ALL Easy parameter 05P00090 0267 Optional Adjustment Tool adjustments with 2 line numeric read out with English labels direct entry numeric keypad Joint Al Z Electric Joint ALL 2 gram packet 05P00100 0060 Compound Use at all busbar connections NVRAM chip ALL U56 on 1 1 05 00226 0392 1 Software ALL U39 U40 U13 LA46S03306 0020 1 U14 on 1 Touch Proof Covers 25 1
30. RS422 requires the 46S02975 04xx PCB with a 9 J1 connector Pin out is per Figure 21 Serial Link Connections Demand Velocity Command message from the host is as follows Byte 1 Byte2 Byte3 4 Byte 5 Byte 6 Byte 7 Byte 8 Sync Sync Logic Logic Numeric Numeric PCDU Checksum Byte Byte command command 05h Byte 1 d Byte 2 high byte low byte Bytes 1 amp 2 the purpose of synchronizing the DSD 412 to the start of an incoming message from the host These bytes will always be set to FAh and 05h respectively They are used for Byte 3 N259 C001 This byte contains the logic commands sent from the host to the DSD 412 The bit definitions are listed below BO 1 to act as a synchronization bit for incoming messages from the host Bf 1 to act as a synchronization bit for incoming messages from the host B2 0 Stop requested B3 OzNo request to clear faults B4 0 Demand Velocity is not DOWN B5 0 Demand Velocity is not UP B6 0 1 field command 1 Run requested 1 Clear fault requested 1 Demand Velocity is DOWN 1 Demand Velocity is UP 1 Full field command BT A rising edge of this signal acts as a latch to capture the Numeric Command and interpret it as a new Pre Torque value This signal should be set to a zero by the host before it sends a new Pre torque value or when the host receives confirmation that the drive is in the run mode Byte 4
31. SCR s Field Interface PCB A3 Cell snubber PCB A5 Drive Control PCB A1 Precautionary Statements How To Contact Magnetek Pre Installation Considerations Receipt of Shipment Unpacking Instructions Packing Instructions for Reshipment or Storage Physical Installation Selecting Mounting and Wiring of the Digital Encoder Electrical Hook up Power Connections Signal Connections Grounding Pre power Check Drive Start up Drive power up sequence Abnormal Display Conditions Fan Check Verify Parameters Standard Control Display Unit Operation General Start Up Operation After Power Up Changing Parameter Functions Viewing Monitor Functions Error Reporting Fault Display Clear Error Display Non Volatile Ram Access Load Default Function Self Tune Function Power Conversion Diagnostics Drive Setup amp Adjustments Software Operating Features Motor Field Current Control Analog Velocity Follower Internal Preset Speed amp Profile Generator Serial Link Follower Maintainance mode Armature Voltage Feedback Pre Torque Current Ramp Down Electronic Motor Over Load External Auto Fault Reset Over Speed Test Anti Rollback ARB Drive Standby Power Reduction DSPR Brake Control Logic Adjustment Function Descriptions Drive Set Up Field Regulator Set Up AC Input Voltage Requirement amp Adjustment Speed Regulator Adjustment Drive Faults Function Error Code Listing Troubleshooting Input Output Signal Verification
32. SUPPLIED 4908 073 NE RE CERE are ee eee AIR FLOW MOTOR 5 12 CONNECTIONS 2 00 MINIMUM ELEARANCESREGICIRED BOTTOM COVER SEE NOTE 1 1 NOTES 1 OPTIONAL TOUCH SAFE COVERS Figure 26 Drive Chassis Outline DSD 412 100 Amp 115 OUTLINE DRAWING 190A TOP VIEW OF OPTIONAL COVER LUG RANGE 14 2AWG O e TORQUE SET SCREW lt 40 IN LBS FOR 8AWG GND NEG POS 45 IN LBS FOR 6 amp 4AWG 50 IN LBS FOR 2AWG 3 50 MIN DOOR SWING Min Door SWING TOP COVER SEE NOTE 1 GND CONNECTOR IN J1 imd 12 71 0 78 13 58 11 25 0 73 esa fe S s EN SE a _ 1 ARM L1 12 13 ARM 4 Y N 2 38 l 1 43 0 31 i Ife fey I I 00 51 1 GND FOR 1 4 HARD
33. and the DSD 412 current reference is forced to zero This fault will shutdown the Drive 905 FIELD LOSS FAULT This fault will shutdown the Drive The field current feedback has dropped below 80 of the expected current during the following conditions 49 when Drive is in Field Weakening Mode Top speed 50 when Drive is in Full Field Mode Accel or Decel 53 when Drive is in Standing Field Mode not running Probable causes are Open circuit failure of motor field or motor field wiring Hardware failure of motor field control circuitry Loss of power or incorrect phasing to Field Rectifier 906 DCU FAILURE FAULT DSD 412 Power down is required The update of the Dual Port RAM from the Drive Control Unit DCU is unreliable This requires the replacement of the Drive Control PCB A1 This fault will shutdown the drive 907 THERMISTOR FAULT The thermistor is found to be open or shorted Check and or replace the thermistor It should measure between 2K 10K ohms at 20C room temperature A Thermistor Fault will also occur if the machine room ambient temperature is below OC as the resistance it detected is too high to be measured An open thermostat on larger drives will also indicate F907 This fault will not shutdown the Drive 92 DRIVE FAULTS ERROR FAULT CODE PROBABLE CAUSE CORRECTIVE ACTION 908 OVER TEMPERATURE FAULT The calculated SCR junction temperature is above 125
34. as the 16th fault occurs This list is erased when the drive is powered down or reset Whether or not the drive stops or continues to run is dependent on the way the particular fault is implemented 38 Most standard faults are set up so that the drive will stop if a fault occurs Faults stored on the Fault List will appear when viewing Function 0 The second method for error handling is called error recording Error recording differs from fault recording in three respects 1 The error condition will not be shown the SCDU or the red Fault LED 2 The error list stores the 16 most recent errors and always overwrites the oldest error with the newest error 3 This list is maintained in battery backed up RAM and is retained when the drive is powered down or reset Operation of the drive is totally independent of whether error recording is enabled or not 4 Errors List may be viewed at function 800 Function 801 Used to display or alter the Fault amp Error Disposition List This list is consulted any time an error condition occurs to determine whether it should be reported as an error a fault or both The process for changing the entry in the disposition list for a particular error using the SCDU is as follows 1 Usethe A and keysto select function number 801 from the function level The two colored LEDs remain off during this step 80 1 BN Both LED s off 2 Press t
35. at limit 1 Drive is at CEMF limit F407 or F408 B4 O E STOP circuit is closed 1 E STOP circuit is open B5 E STOP fault 1 E STOP fault F405 6 0 drive fault exists READY 1 A drive fault exists NOT READY BT 0 NOT READY test mode or Fault 1 Drive is READY Byte 5 N259 C012 This byte contains 8 logic signals to indicate additional faults BO 0 lt No Loop fault exists 1 Loop fault exists F900 B1 PCU IST fault 1 PCU IST fault F901 B2 0 line synchronization failure 1 Line synchronization failure F903 B3 0 lt low line fault 1 Low line fault F904 4 0 field loss fault 1 Field loss fault F905 5 0 Line Droop 1 Line Droop below 90 of F406 B6 0 Speed Regulator not Released 1 Speed Regulator is Released 7 Bytes 6 amp 7 These two bytes contain an echo of the most recent Numeric Command target value from the host The format of the value is identical to that previously defined in the Demand Velocity message Bytes 8 10 These 3 bytes contain ASCII display data normally intended for a serial terminal device connected to the host The host should simply pass all non zero data displayable ASCII characters that it receives in these two slots to the device that is emulating the PCDU The host may ignore bytes in these fields if they are set to 00h meaning that the DSD 412 has data to 81 DRIVE SETUP display at this time A full PCDU disp
36. being used do not set 110 to selection 3 97 OVERSPEED FAULT The motor speed has exceeded the trip level set in function 12 as measured by the encoder 12 is a percentage of the motor speed value set in 11 Possible cause Incorrect setting of 10 11 or 12 Poor speed regulator tuning Check 40 41 amp 42 Velocity reference set above rated speed Intermittent velocity encoder 98 TACH LOSS FAULT The drive does not see the encoder velocity in proportion to armature voltage indication of speed Refer to Function explanations for 14 and 15 Ensure that the encoder is working Look for loose connections Raise the value for 14 if motor has high resistance Ensure that the contactor feedback circuit at A1TB1 7 does not close before the armature power poles See timing diagram Fig 4 4 7 99 REVERSED TACH FAULT The digital encoder and motor voltage signals do not agree in direction of rotation Probable cause Encoder leads are reversed Reverse connections for A and A NOT 900 PCU LOOP FAULT The contactor did not close or opened unexpectedly Or the motor voltage exceeded 30 of rated motor voltage 7 during Self Tune 997 When this occurs the Severe Fault flag is set and the DSD 412 current reference is forced to zero This fault will shutdown the drive Check the contactor aux feedback circuit to TB1 7 Check contactor and LPR coils for proper operation Check that power is being a
37. can and should be done before any disassembly or removal of the SCR Power Bridge Ohmmeter SCR Testing 1 Using a multi meter on the X100 range press the positive probe to the positive right side DC bus bar and the negative probe to each of the three AC 110 bus bars load side of AC line fuses to measure the resistance between them The reading in each case should be greater than 300 K ohms Since most SCRs fail by shorting a low resistance could indicate a defective SCR This procedure continued in steps 2 amp 3 checks a pair of SCRs mounted within the same heat sink half phase assembly If found defective that half phase assembly must be removed for further repair 2 Press the positive multi meter probe to the negative DC bus bar and the negative probe to each of the three AC bus bars Again all readings should be greater than 300 K ohms 3 Reverse the multi meter probes and repeat the above two steps Again all readings should be greater than 300 K ohms 4 Check SCR gate resistance for each device a Pull off the WHITE gate lead faston from the connection to the Armature Interface PCB Use a multi meter to measure the resistance from the white SCR gate wire using the ohmmeter lead and the ohmmeter lead to the red SCR cathode wire Compare reading results per Table 16 SCR Gate Resistance Testing b Repeat the above for all 12 SCR devices 5 If any of the above ohmmeter re
38. degrees Centigrade This is calculated from the thermistor heat sink measurement and measured armature output current heating effects of SCRs Possible causes Ambient temperature too high Check for cause Clogged air filter in cabinet Clean or replace air filter Clogged heat sinks Clean Heatsink fins Cooling fan failure Replace defective cooling fan s in power cube Note This fault will not shutdown the Drive 909 RIPPLE FAULT Repeated high peak to average motor armature current The cause of this condition may be defective hardware that can be discovered through the PCU Diagnostics CDU function 998 It may also occur due to poor regulator tuning or other oscillatory operation condition 910 BLOWN FUSE FAULT One or more of the three AC line fuses is open This condition is checked on power up and upon request through the PCU F 998 PCU Diagnostics function Detection is accomplished by measurements via voltage dividers on the Armature Interface PCB A2 Possible causes are One or more of AC input fuses are blown Power wiring problem check wiring Faulty DSPR power relay 911 SHORTED SCRS DOUBLER FAULT DSD Power Down is required One of the SCR Doubler packs has a short circuit between the SCRS This condition is checked only upon request through the PCU 998 Diagnostics CDU function The optional handheld PCDU will also identify which SCR pair is bad 912 OPEN SCR FAULT DSD Power Down is requ
39. distance will be lt RunningFPM x 0 028 x 12 60 RunningFPM x 0 0056 inches So the total maximum stopping distance or deceleration distance to leveling speed will be Stotal Tsec x DeltaFPM RatedFPM x LevelingFPM 5 DeltaFPM 10 RunningFPM x 0 0056 inches For multi floor runs the slow down vane switch must be at least that distance from the landing or the floor may be missed For single floor runs the acceleration distance may be calculated similar to above without the uncertainty error The slow down vane switch for the next landing must be at least that far away from the beginning 77 DRIVE SETUP of the run The single floor target running speed and or accel decel times must be adjusted to meet the above criteria conditions or the landing may be missed Note that if minimum flight time is desired a different deceleration rate may be selected to optimize the result A longer decel time can result in a faster flight time since less time is spent at leveling speed A second set of accel decel parameters may be activated by use of the optional Ramp Rate Select contacts An optimizing procedure would be 1 Set the Accel Time and percent jerk for ride quality 2 For short runs i e where the distance from the starting floor to the vane switch is less than the distance from the vane Switch to the stopping floor set the target speed so that the accel distance is less than the distance from
40. in seconds for S curve ramp 3 from rated speed to zero speed Effective only when logic input A1TB1 10 is active Selecting this ramp rate will override Rates 1 or 2 Function 180 Accel 3 S Units Range 0 1 100 0 Default 25 0 The percent of time that will be spent in the controlled jerk or S portion of the timed ramp curve during ramped acceleration 3 A percent S of 0 1 corresponds to almost all linear acceleration A percent S of 100 will make the S curve 3 smooth with no linear acceleration portion Function 181 Decel 3 S Units Range 0 1 100 0 Default 25 0 The percent of time that will be spent in the controlled jerk or S portion of the timed ramp curve during ramped deceleration 3 A percent S of 0 1 corresponds to almost all linear deceleration A percent S of 100 will make the S curve 1 smooth with no linear deceleration portion Function 182 Invert Alarm Relay Units logic Range 0 Off 1 On Default 0 OFF Alarms are classified as non critical faults detected by the DSD 412 that pose no immediate need to stop operation The Alarm output relay K2 on the Drive Control PCB A1 is reserved for non critical fault indications It has a normally open contact wired to A1TB1 38 and 39 With function 182 set to 0 OFF the default relay K2 will pick up closing the contact on the occurrence of a non critical fault With function 182 set to a 1 60 ON the relay
41. is determined by reading a sense resistor on the Field Interface board selected by SW1 This resistance identifies the motor field current feedback scaling for the A D converter If the resistance value is not recognized a Field Sense Fault is declared This indicates that there is a hardware fault on the Field Interface PCB Drive Control PCB or within the interconnecting cables and hardware Check that J13 is seated properly and that the cable is not defective 926 PCU WATCHDOG DSD power down is required This fault is declared when the PCU is reset via its own software watchdog timer It is an indication of a PCB hardware problem more 94 DRIVE FAULTS ERROR FAULT CODE PROBABLE CAUSE CORRECTIVE ACTION so than a DCU or PCU software problem A likely cause is severe electrical interference Check for Faulty or socket connections at U13 U14 U39 U40 Ensure that all panel relays have working R C coil suppression Include relays that may be operating door opener equipment Look for relays where the 24V and 115VAC signals are being switched in the same relay There must be arc barriers between contact poles to avoid spark splash from 115 VAC circuits into 24 VDC logic Check for intermittent grounds in the power circuit and in 24Vdc signal wiring Noise generated over the encoder feedback power supply or Drive Control PCB can cause this fault Verify all connections and verify that
42. is used to tell the microprocessor what tap is being used If the desired motor field current cannot be obtained 1 Verify that the proper AC voltage is available at terminals A3TB1 AC1 amp A3TB1AC2 Verify that 55 is set to this nominal value This voltage is phase sensitive and must be derived as shown in drawing of Figure 2 1a 2 Verify motor field current flow calibration by reading motor current with a separate clamp on DC ammeter Compare the reading with that of 2612 If these two readings do not correspond verify that A3S1 is correctly set and that the F1 lead is connected to the right tap 3 Read and verify VDC output to the motor field between A3TB4 F2 and A3TBAF 1 4 Turn all power off Temporarily remove one power feed wire from A3TB1 AC1 and test the SCR Rectifier module for shorts with an ohmmeter between each screw connection to the PCB If short circuits exist replace the module AND the PCB Field Control A3 PCB Replacement 1 Label and disconnect all power wires to terminals on the PCB Disconnect ribbon connector J13 2 Disconnect wires G1 amp G2 from the SCR Rectifier module Remove 4 screws holding PCB to SCR Rectifier module Remove PCB at each plastic post by gently pulling straight out 3 Reverse the above procedure to reassemble Torque the 4 SCR Rectifier module screws to 18 in Ibs Field Control SCR Rectifier Replacement 1 Remove the A3 PCB according to the above 2
43. load voltage at rated top speed NOTE Motor field current will not exceed the setting of function 50 Setting or leaving this value at default simply means that the field will not weaken at high speeds Function 50 Rated Full Field Current Units ADC Range 0 20 40 00 Default 1 9 This is the motor field current amperes the drive should provide when starting and at low speed It should agree with Rated Full or Forcing Motor Field Current per the motor nameplate Function 51 Field L R Units SEC Range 0 10 10 00 Default 0 54 This is the Motor Field time constant L R It is an important value to determine motor field current regulator gains See function 615 after performing the Self Tune procedure Function 52 Rated Field Vdc Units VDC Range 50 525 Default 240 This is the Rated Field Voltage necessary to produce Full field amps function 50 It is used to calculate motor field circuit resistance and determine motor field current regulator gains Improper adjustment can affect stability Function 53 Standby Field Current Units Range 10 100 Default 25 This percent of the full field current amperes that the drive should provide when the elevator system is at rest i e no Run command or Field Enable command received Function 54 Field Response Units RAD Range 1 0 10 0 Default 5 0 This input defines the desired motor field current regulator bandwidth
44. or the serial interface connection at terminal point J1 mounted directly on the Drive Control PCB 1 Front Panel Controls and Indicators The upper right corner of the power cube cover contains the operator controls and indicators Although accessible with the cover in place all of these components are part of the Drive Control PCB 1 DRIVE RESET Button 51 Pressing this button causes the drive to clear critical and non critical faults and to restore drive operation when faults are present This button will have no affect when the drive in enabled INTRODUCTION Status LEDs Located to the right of the RESET button is a vertical strip of six light emitting diodes LEDs READY Indicates that the drive is ready to operate RUN DCloop contactor is closed and drive is controlling motor speed LIMIT Drive operation is demanding current limit armature current e OVERLOAD Motor armature current is in overload region If lighted when the drive is stopped indicates that an over load trip has occurred E STOP Drive contactor safety interlock is detected as open Drive will not run when this light is on e FAULT Indicates that a declared drive fault exists The Fault Error Code List defines what conditions the drive will recognize as faults Standard Control Display Unit The major part of the SCDU is a 4 1 2 digit numeric LED display Each of its four full digits can displa
45. pin closest to the gate Repeat on the other gate cathode pairs There are two pairs per SCR module Compare readings with Table 16 SCR Gate Resistance Testing METER READING SCR CONDITION Less than 5 Ohms Shorted BAD 5 100 Ohms Acceptable 100 Ohms 1K Ohms Questionable More than 1K Ohms Open BAD Table 16 SCR Gate Resistance Testing NOTE If SCRs were indicated as bad continue to disassemble for repair by 1 Remove the Armature Interface PCB 2 Remove the four power fuses 3 Label and remove one end of the two wires that go between L1A AC1 and L2A AC2 on the Field Interface PCB 4 195ADC chassis remove the Snubber PCB the AC bus bars and the appropriate DC bus bar to gain access to the SCR modules Save all hardware as it will be needed for re assembly Screw lengths are important 5 RRemove each defective SCR module taking care not to scratch or burr the heat sink surface Remove and discard the coated aluminum thermal wafer if present Save all screws and washer hardware It will be needed in the proper order for re assembly Remove the gate amp cathode lead assembly from the defective module 6 Toinstall new SCR module s ensure that the heat sink surface and bottom of the SCR module is clean and free from any dirt Install a new thermal wafer by first removing the protective paper coating and lining it up with the mounting holes on the heat sink
46. sensitivity of the serial velocity reference may be adjusted using function 82 47 DRIVE SETUP AND ADJUSTMENT Maintainance mode Armature Voltage Feedback A DC motor with rated field current applied will produce rated armature voltage when spinning at rated speed This will result in speed regulation in the range of 5 When in this mode operation over base speed will not be possible as the field weakening is inhibited When this mode is enabled it will still be possible to monitor the feedback from the encoder although it will not used for speed regulation Due to the nature of this mode of operation the speed regulator gain will be defaulted at 2 radians to prevent unstable operation it shouldn t require to be changed from this point A new parameter F 38 was added for this purpose so it won t be required to modify the normal speed regulator gains F 39 and 40 when it switched See descriptions for functions 112 and 113 for setting this mode Pre Torque When enabled by function 114 the speed error integrator will be pre conditioned by the supplied pre torque signal before starting E Reg This will cause motor armature current to begin at a magnitude proportional to the pre torque command to prevent elevator motion or rollback when the elevator brake is released The pre torque signal will be from either an analog or serial link digital source as selected by software Mode switch function 110 Current Ramp Down Whe
47. set speeds When this is set to 0 OFF 24V relay logic input A1TB1 8 will be a Hardware RUN command A1TB1 50 will be the UP Logic low or OFF or Down 24V or ON command When this is set to 1 ON 24 V relay logic input at A1TB1 8 will be a Run Up command A1TB1 50 will be a Run Down command If REF MODE function 110 is set to 1 or 3 for following bi directional external analog or serial link velocity commands the polarity of that signal will always be followed In that case either A1TB1 8 or A1TB1 50 may be used as a Hardware Run command input but not both Function 116 Decel Rate Latch Units logic Range 0 Off 1 On Default 0 Off When set this control bit causes the decel ramp rate active at the start of decel to remain in effect until the decel sequence is completed This function will momentarily override logic input commands at A1TB1 10 and A1TB1 51 57 DRIVE SETUP AND ADJUSTMENT Function 120 Speed Error Detect Units SEC Range 0 0 5 0 Default 0 5 This value sets the time sensitivity of the Speed Error is Low detector This is a useful indicator to tell when if the drive is following the velocity reference properly Exceeding the set limits of this detector does not shut the drive down The detector results can be sent to a logic output See also function 99 100 121 and the description of logic outputs 183 through 187 Function 121 Speed Error Threshold Units Range
48. structure using the mounting holes provided at the back of the drive Ensure that the unit is level Selecting Mounting and Wiring of the Digital Encoder Encoder Selection A quality encoder is recommended for use with the DSD 412 controller for speed feedback The encoder should be a two channel quadrature zero speed type device with differential line drivers The DSD 412 drive supplies 5V power for an encoder however the encoder and feedback signals may operate from another source up to 15 volts if desired The Pulses per Revolution count must be sufficient to provide an adequate frequency feedback at very low speeds and yet not exceed 300 kHz per channel at top speed For most elevator applications this target will be met when the feedback frequency per channel is greater than 50KHz at contract speed For gearless machines which have a base speed around 100RPM a 10 000PPR encoder is a good choice for direct connection to the motor shaft For geared machines with motors running at 1750 or 1150RPM 2500PPR encoder may be used Direct mounted hollow shaft encoders electrically insulated from motor shaft and motor frame will yield the best results The use of an analog AC or DC tachometer is not supported by DSD 412 elevator drives software or hardware Mounting Proper mounting and alignment of the digital encoder used for speed feedback is very critical for the smooth operation of the DSD 412 controller Even the s
49. turning OFF the drive will not care and continue to respond normally except that motor field current will go to zero during a DSPR time out However external relay logic must not turn 3 phase power OFF unexpectedly or the drive will declare an F406 F903 or F904 NOTE PCU software in EPROM sockets U13 amp U14 must be labeled SA0404 displayed by function 690 AND the software in sockets U39 amp U40 displayed by function 697 must be labeled SA0407 for the DSPR feature to be available Using Elevator Brake Controls Two relay control outputs are provided Brake Lift Brake Pick by programmable output selection functions 186 and 183 Three timers are provided Brake Pick 89 Brake Drop 90 Must Stop 91 Suggested wiring is shown in Figure 10 Drive Brake Control Feature Operation is as follows Elevator Start with Brake Control 1 The drive is started by activating first the ENABLE then RUN command lines The contactor will pick pull in and when acknowledge the drive will start the current and velocity regulator by priming it to provide pre torque armature current if enabled The internal velocity reference will always start at zero 2 Once Start is confirmed the Brake Lift and Brake Pick lines will both become active This will apply full voltage to the brake coil and cause the brake to lift 3 The Brake Pick output will deactivate at the end of Brake Pick time 89 and release the internal velocity
50. used set this value to 0 off If a gain switch will be from the serial link set this value to 1 ON function 104 on and function 110 set for analog or pre set speeds results no gain switching Function 105 Gain Switch Speed Units PU Range 0 00 1 10 Default 1 10 This function is only used if function 104 is off The value determines the speed where velocity regulator gain is switched If the speed reference is below the value of function 105 the closed loop gain will correspond to that set by function 40 If the speed reference value is above set point function 105 then closed loop bandwidth will be as set in function 39 Function 107 Tach Rate Gain Units Range 0 00 30 00 Default 0 00 This value adjusts the gain of differential encoder tach rate feedback It can be useful to help attenuate vibration and rope resonance effects Disable this function by setting the value to zero If using this feature keep the setting as low as possible consistent with good operation Function 110 Reference Mode Select Units Logic Range 1 4 Default 2 This function allows the user to select the source of the velocity reference signal Setting this value to 1 enables the drive to follow the magnitude and direction polarity of an external analog reference and external ramp slew limit rates function 21 Setting this value to 2 default enables the 1 of 7 internal pre set speed selects via functi
51. will be picked up during normal operating conditions and drop out on the occurrence of a non critical fault or Alarm Alarms are presently identified as drive over temperature or thermistor failure motor or transformer thermostat over temperature and motor overload trip Other conditions may be selectable to be alarms or critical faults DRIVE SETUP AND ADJUSTMENT CONTROLLED DECEL JERK OR S PORTION CONTROLLED ACCEL JERK OR S PORTION LINEAR ACCEL REGION LINEAR DECEL REGION NTROLLED DECEL CONTROLLED ACCEL re JERK OR S JERK Figure 12 S Curve Accel Decel Cycle 174 175 180 0 1 FULL SPEED ZERO SPEED 4 ACCELTIME gt Figure 13 S Curve Accel with 5 FULL SPEED 174 175 180 100 ZERO SPEED ACCELTIME gt Figure 14 S Curve with 100 S 61 DRIVE SETUP AND ADJUSTMENT Functions 183 187 Logic Output Selects The function of relay and open collector logic output channels K3 K7 on the Drive Control PCB are programmable Each output has several choices of functions The descriptions below identify how each option works Table 4 2 3 identifies how to map a particular function to a particular output channel For example to program output K6 A1TB1 83 to indicate when the drive is at zero speed option J set function 186 to be 2 The factory default values 1 will program K3 K7 to the same f
52. 0 1 phase control power from a separate source e Frequency 48 62 Hz e Operating Temperature 0 45 C 55 C max at DSD chassis e Altitude to 3300 feet above sea level Derate 5 for each 1 000 ft above 3300 ft e Relative Humidity 95 noncondensing Protective Features Programmed memory protection Self protected Control V power supply Fast phase back of loop current Contactor interlock for E Stop 174 motor overload protection AC line current limiting fuses Automatic power up test Control power supply loss detection Isolated and grounded electronics Encoder Tachometer monitoring and loss protection Input line monitoring Phase sequence insensitive dv dt protection snubbers 1400 PRV Thyristors Instantaneous over current protection Phase loss protection DC bus fuse Field current economizer and loss protection INTRODUCTION CUSTOMER DISCONNECT L1 ISOLATION i5 F2 HUM TRANSFORMER zi L3 SNUBBER PCB AND COMPONENTS CONTROL MOTOR FIELD POWER CONTROL XFMR HOIST MOTOR 115 VAC ID FIELD CONTROL SCR GATING i POWER SUPPLY SAFETY MOTOR amp ki Pep eee he CHAIN TRANSFORMER LOW VOLTAGE THE
53. 0 5 5 0 1 5 91 MUST STOP TIMER SEC 0 1 5 0 2 0 QUICK REFERENCE FOR SET UP PARAMETERS FNCT DESCRIPTION UNIT RANGE DEFAULT SITE SITE SETTING SETTING 92 BRAKE AUTO STOP ON LOGIC 0 1 0 93 ANALOG OUT 0 BIAS 1 1 0 0 94 ANALOG OUT 1 BIAS 1 1 0 0 95 ANALOG OUT 0 SELECT NUM 0 8 1 TB1 45 96 ANALOG OUT 1 SELECT NUM 0 8 3 TB1 46 97 ANALOG OUTO MULT 00 10 0 80 10 00 98 ANALOG OUT 1 MULT l 00 10 0 80 10 00 99 SPEED ERROR TRIP SEC 0 20 5 00 5 00 TIME 100 SPEED ERROR TRIP 0 0 100 0 100 0 LEVEL 101 AUTO FAULT RESETON LOGIC 0 1 0 102 3S LOOP FLT LOGIC 0 1 0 104 SERIAL SWITCH LOGIC 0 1 0 105 GAIN SWITCH SPEED PU 0 00 1 10 1 10 107 TACH RATE GAIN 0 0 30 0 0 0 110 REFERENCE MODE NUM 1 4 2 SELECT 111 ARCH TRAV DISABLE LOGIO 0 1 1 ON 112 FEEDBACK SELECT NUM 0 1 1 ENCODER 113 ARM VOLTS MAX VDC 650 0 100 SPEED 114 PRE TORQUE ENABLE LOGIC 0 1 0 115 LOGIC 0 1 0 116 DECEL RATE LATCH LOGIC 0 1 0 120 SPEED ERROR DETECT SEC 0 0 5 0 0 5 TIME QUICK REFERENCE FOR SET UP PARAMETERS FNCT DESCRIPTION UNIT RANGE DEFAULT SITE SITE SETTING SETTING 121 SPEED ERROR 0 0 15 0 2 0 THRESHOLD 130 AR
54. 00A Top and Bottom LA46S03403 0010 1 Schroud Touch Proof Covers 195A Top and Bottom LA46S03403 0020 1 Schroud Touch Proof Covers 300A Top Schroud LA46S03403 0060 1 Table 17 Spare Parts 114 OUTLINE DRAWING 100A TOP VIEW OF OPTIONAL COVER GND 11 5 5 COVER SEE NOTE 1 3 00 12 71 0 78 006 APPROX 6 75 ABOVE m 11 25 0 79 MOUNTING SURFACE 10 45 T 52 72 1252 24 f Ta ea gee ee DE GND L1 L2 L3 POS b 2 62 V ZO I i FOR 1 4 0 92 HARDW DWARE 4PL 6 5 4 3 2 1 lt CUBE 10 P C B 17 13 428 24 06 21 04 A2 T3 5 A2 ARMATURE e VOLTAGE FEEDBACK 1777 ebebeb 55 4 55 58 5 SP 50 OD Gi 62 65 64 6 E 67 66 69 7071 72_15 74 75 C 78 M B Bi Q A BL Pl z Hoo 2 69 o o n l 4 31 eee ub J oq OPTIONAL 1 F2 CUSTOMER FAN WHEN SUPPLIED FAN WHEN
55. 10 0 14 V SENSE 0 0 100 0 25 0 15 T SENSE 0 0 100 0 5 0 16 ENCDR MTR RATIO 1 000 1 000 19 000 17 RATED CAR SPEED 1 0 400 0 1900 0 21 EXT ACCEL LIMIT n S 2 2 00 4 20 10 00 22 ERROR LIST RESET LOGIC 0 1 0 32 FULL FIELD DETECT 30 90 80 38 ARM VLT RESPONSE RAD 1 0 4 0 2 0 39 HI SPEED BANDWIDTH RAD 1 15 6 0 40 LO SPEED BANDWIDTH RAD 1 15 6 0 41 PER UNIT INERTIA SEC 0 10 9 99 2 00 QUICK REFERENCE FOR SET UP PARAMETERS FNCT DESCRIPTION UNIT RANGE DEFAULT SITE SITE SETTING SETTING 42 STIFFNESS 0 2 9 9 1 0 49 WEAK CURRENT ADC 0 2 40 0 40 0 50 FULL FIELD CURRENT ADC 0 20 1 90 40 00 51 MOTOR FIELD L R SEC 0 10 0 54 10 00 52 RTD FIELD VOLTS DC VDC 50 525 240 53 STANDBY FIELD AMPS 10 100 25 54 FIELD RESPONSE RAD 1 0 10 0 5 0 55 FIELD CONTROL AC VAC 0 525 0 SOURCE VOLTS 63 U D PICK UP 0 01 0 10 100 0 64 LOW SPEED 0 1 100 0 2 0 THRESHOLD 80 OVER SPEED TEST LOGIC 0 1 0 OFF 81 OVER SPEED MULT 1 00 1 50 1 00 82 REFERENCE MULT 0 500 1 000 2 000 83 MOTOR OVERLD TIME SEC 2 0 500 0 48 0 84 MOTOR OVERLD LEVEL PU 0 5 2 1 15 85 DECAY RAMP SEC 0 01 2 50 0 20 86 ANALOG SPD REF PU 0 02 0 02 0 0000 ZERO 87 PRE TORQUE MULT 0 25 2 00 1 00 88 DSPR DELAY TIME MIN 0 60 0 OFF 89 BRAKE PICK TIMER SEC 0 5 5 0 1 0 90 BRAKE DROP TIMER SEC
56. 100VDC ON ARMATURE 1VDC ON TP30 TP31 ANALOG INPUT ANALOG INPUT SIGNAL ON TB1 58 TP32 ANALOG INPUT ANALOG INPUT SIGNAL ON 1 59 TP33 ANALOG INPUT ANALOG INPUT SIGNAL ON TB1 60 TP34 ANALOG INPUT ANALOG INPUT SIGNAL ON TB1 61 TP35 10 REFERENCE OUTPUT 10V REF OUTPUT AT TB1 29 TP36 10V REFERENCE OUTPUT 10V REF OUTPUT AT TB1 28 TP37 ARMATURE CURRENT 3V 1 Per Unit Use Shielded Probe to avoid FEEDBACK noise pick up Noise will cause erratic Drive operation See TP39 TP38 ANALOG TACH FEEDBACK ANALOG TACH SIGNAL When used TP39 ARMATURE CURRENT Filtered Armature Current Feedback Signal FEEDBACK Average of Armature Current TP40 DIFF ANALOG INPUT 10V DIFF INPUT ON TB1 63 68 OR 600MV DIFF INPUT ON TB1 64 67 TP41 ANALOG OUTPUT 0 Analog Output to TB1 45 TP42 DIFF ANALOG INPUT 10V DIFF INPUT 10V TO TB1 71 76 OR OR 0 600MV 0 600MV DIFF INPUT TO TB1 72 75 TP43 DIFF ANALOG INPUT 10 DIFF INPUT 10V TO TB1 30 31 TP44 ANALOG OUTPUT 1 ANALOG OUTPUT to TB1 46 TP45 DIFF ANALOG INPUT 600MV 600MV TO 1 34 35 TP46 FIELD CURRENT FEEDBACK 1 9A Term 46 6 7V 1 9A 6 9A Term TP46 6 7V 6 9A 16 0A Term TP46 6 7V 16 0A 40 0A Term TP46 6 7V 40 0A Table 15 Test Point Definitions 105 MAINTENANCE Drive Control PCB Replacement 1 Release the front cover of the drive by pulling out the four corner fasteners approximately 1 4 inch u
57. 33 a Ideally there would be adequate dwell time after release of the brake for ARB settling to occur But elevator floor to floor time specifications do not necessarily allow for any time delay If the resulting ARB time is cut short by release of the velocity reference before position settling is complete the car will begin to accelerate toward the next landing from wherever it may be in the ARB cycle The position regulator to speed regulator change over will be smooth but the repeatability of velocity profile tracking during acceleration may be altered by the amount of load unbalance and the value of the threshold set in 133 Keep this setting as low as possible for best results b If 133 is set too low ARB may be terminated too early particularly when using an external analog reference This will result in elevator rollback that could have been prevented If acceleration of the velocity profile is started and crosses the threshold set by 133 before the elevator brake actually releases ARB will not function and may result in elevator roll back as acceleration begins This and the jerk or vibration sometimes felt by passengers as the motor pulls through the 85 DRIVE SETUP brake to start the car is a result of poor velocity reference release Vs brake release timing With ARB the velocity reference should not be released to move away from zero until after the brake is mechanically released Otherwise
58. 7 DCU CEMF ALARM 408 PCU CEMF FAULT 409 PCU RESET FAULT SPEED ERROR TRIP FAULT 411 MAXIMUM AUTO RESETS FAULT 13 COMMON FAULT REFERENCES FAULT DESCRIPTION FIELD CURRENT TRACKING FAULT 2 SOFTWARE COMPATABILITY F bo CORRUPTED NV RAM DATA 900 PCU LOOP FAULT 901 PCU IST FAULT POWER SUPPLY 902 FAULT 903 LINE SYNC FAILURE 904 LOW LINE FAULT 905 FIELD LOSS 907 THERMISTOR FAULT OVER 908 TEMPERATURE 909 EXCESSIVE RIPPLE 910 BLOWN FUSE 915 PARAMETER SETUP oe REVERSE ARM V FEEDBACK ius RATED VAC SETTING ERROR COMMON FAULT REFERENCES FAULT DESCRIPTION 920 RATED ARM VOLT SETTING 921 BRIDGE RATING FAULT 923 RATED ARM I SETTING ERROR 924 RATED FIELD SETTING ERROR FIELD PCB SENSE 829 FAULT 926 PCU WATCHDOG IFLD FB CANNOT BE 929 REDUCED TO ZERO DURING SELFTUNE 930 IFLD FB CANNOT GET TO RATED EXCESS OPEN 931 CIRCUIT VOLTAGE DURING SELFTUNE ARMATURE CEMF 932 VOLTAGE IN XCESS DURING SELFTUNE IARM DOES NOT 933 INCREASE TO NEAR TEST AMPS DURING SELFTUNE 14 FAULT DESCRIPTION 934 CALC ARML IS UNDER RANGE DURING SELFTUNE 935 VOLTAGE FEEDBACK AND BUSS VOLTAGE DOESN T MATCH DURING SELFTUNE 936 ESTOP CONTACT WAS OPENED DURING SELF TUNE 937 LOW READ BACK VOLTAGE FEEDBACK DURING SELFTUN
59. A thin even coating of thermal joint compound applied to the bottom of the SCR module may be used instead of the thermal wafer Position the module on the heat sink and loosely install the mounting screws with washers Do not tighten mounting screws more than finger tight at this time 7 Apply a thin coating of Joint Al Z on all mating electrical surfaces and replace all bus bars Start all hardware screws making them finger tight Ensure proper alignment of all components then torque bus bar mounting screws to 26 inch pounds IMPORTANT DO NOT use a torque wrench to tighten SCR module mounting hardware The correctly flattened Belleville washer as described below provides the proper mounting pressure 8 Now tighten the mounting hardware for any replaced SCR modules Tighten each screw equally and alternately 1 4 turn at a time Continue with this procedure until the Belleville washers become flat An abrupt change in torque will be detected when the Belleville becomes flat 9 Reinstall the AC and DC bus bars Tighten bus bar mounting screws until Belleville washers become flat MAINTENANCE 10 Reinstall the two power lead wires feeding the Field Interface PCB if they were previously removed 11 Reinstall the Armature Interface PCB and the Snubber PCB Torque the mounting screws to 10 inch pounds All mounting screws must be in place for proper operation 12 Reconnect each of the SCR gate and cathode lea
60. Armature Fuse 200 700 100A F4 1 05 00017 0179 1 Armature Fuse 300A 700V 195A F4 1 05 00017 0366 1 Armature Fuse 500A 700V 300A F4 1 05 00017 0235 1 SCR 25A Q1 Q6 1 05 00050 0409 6 SCR 50A Q1 Q6 1 05 00050 0409 6 SCR 100A Q1 Q6 1 05 00050 0410 6 SCR 195A Q1 Q6 1 05 00050 0412 6 SCR 300A Q1 Q12 LA46S03214 0010 12 Current Transducer 25A U1 1 05 00217 0015 1 Current Transducer 50A U1 1 05 00217 0014 1 Current Transducer 100A U1 1 05 00217 0042 1 Current Transducer 195A U1 1 05 00645 0018 1 Current Transducer 300A U1 1 05 00217 0020 1 Thermistor Assembly ALL RT1 46503596 0050 1 Thermostat 300A 51 52 46503596 0060 2 Drive Control main PCB ALL 1 LA46S02975 9303 1 Analog RS232 Drive Control PCB RS422 ALL 1 1 46502975 9403 1 Includes U13 14 39 40 software chips Field Interface PCB ALL A3 LA46S03594 0010 1 Field SCR Rect Module ALL Q7 1 05 00050 0523 1 Armature Interface PCB 25A 50A A2 LA46S02976 0032 1 Armature Interface PCB 100A 195 A2 LA46S02976 0032 1 Armature Interface PCB A A2 LA46S03088 0012 1 300A Cube ID PCB 25A A2J28 46803577 1015 1 Cube ID PCB 50A A2J28 46S03577 1030 1 Cube ID PCB 100A A2J28 46S03577 1060 1 Cube ID PCB 195A A2J28 46803577 1125 1 Cube ID PCB 300A A2J19 46S03577 1200 1 DSD 412 Power Supply ALL 4 1 05 00090 0293 1 Snubber PCB 25A A5 LA46S03020 0010 1 Snubber PCB 50A A5 LA46S03020 0020 1 Snubber PCB 100A 5 LA46S03020 0030 1 Snubber PCB 195A 5 LA46S03017 0010 1 Snubber
61. B Do not lose these screws and washer hardware All will be need to re establish proper electrical connections at time of re assembly 4 The Cube ID PCB is located at J28 If the Armature Interface PCB is to be replaced ensure that the replacement PCB has an identical Cube ID PCB or re use the original unit 5 Replace the Armature Interface PCB in reverse order of disassembly Torque mounting screws down to 20 inch pounds 108 SCR Testing and Replacement 1 Using a multimeter on the X100 range press the positive probe to the positive DC bus bar and the negative probe to each of the three AC bus bars to measure the resistance between them The reading in each case should be infinity Since most SCRs fail by shorting a low resistance could indicate a defective SCR This procedure continued in steps 7 amp 8 checks a pair of SCRs in parallel which are in the same module Therefore the entire module must be changed to replace the defective SCR 2 Press the positive multimeter probe to the negative DC bus bar and the negative probe to each of the three AC bus bars Again all readings should be infinity 3 Reverse the multimeter probes and repeat the above two steps Again all readings should be infinity 4 To check the gate resistance of the SCRs set the multimeter to X1 range Measure the resistance from the gate white lead or pin closest to the end of the device to the cathode red lead or
62. B MODE NUM 0 2 0 OFF 131 ARB BANDWIDTH RAD 1 0 15 0 6 0 132 ARB DAMPING 0 01 2 00 20 00 133 ARB SPD 0 0 10 0 0 0 THRESHOLD 150 BINARY SELECT ON LOGIC 0 1 1 ON 151 PRESET SPEED 1 0 0 0 0 1900 0 152 PRESET SPEED 2 0 0 0 0 1900 0 153 PRESET SPEED 3 0 0 0 0 1900 0 154 PRESET SPEED 4 0 0 0 0 1900 0 155 PRESET SPEED 5 0 0 0 0 1900 0 156 PRESET SPEED 6 0 0 0 0 1900 0 157 PRESET SPEED 7 0 0 0 0 1900 0 170 ACCEL 1 TIME SEC 0 50 5 00 15 00 171 ACCEL 2 TIME SEC 0 50 5 00 15 00 172 DECEL 1 TIME SEC 0 50 5 00 15 00 173 DECEL 2 TIME SEC 0 50 5 00 15 00 174 ACCEL 1 0 1 25 0 100 0 175 ACCEL 2 S 0 1 25 0 100 0 176 1 0 1 25 0 100 0 177 DECEL 2 0 1 25 0 100 0 10 QUICK REFERENCE FOR SET UP PARAMETERS FNCT DESCRIPTION UNIT RANGE DEFAULT SITE SITE SETTING SETTING 178 ACCEL 3 TIME SEC 0 50 5 00 15 00 179 DECEL 3 TIME SEC 0 50 5 00 5 00 180 ACCEL 3 0 1 25 0 100 0 181 DECEL 3 0 1 25 0 100 0 182 INVERT ALARM LOGIC 0 1 0 RELAY 183 K3 LGC OUT SELCT NUM 1 4 1 184 K4 LGC OUT SELCT NUM 1 4 1 185 K5 LGC OUT SELCT NUM 1 4 1 186 K6 LGC OUT SELCT NUM 1 4 1 187 K7 LGC OUT SELCT NUM 1 4 1 190 NOTCH DEPTH 0 10 0 191 NOTCH PERIOD 0 10 7 192 F413 DETECTION LVL PU 0 05 0 05 0 50
63. E 938 LOW READ BACK FROM DC BUSS CIRCUIT DURING SELFTUNE 939 FAULTY HARDWARE IN THE FIELD INTERFACE CIRCUIT 940 FIELD A D READING IS SATURATED 941 MOTOR THERMOSTAT OPEN Table 4 Fault References Introduction Drive Description The DSD 412 Drive is a complete digital system drive that provides individual drive and system control in one compact package It is of 12SCR Regenerative configuration The drive uses two microprocessors one for the Power Conversion Unit PCU circuitry one for the Drive Control Unit DCU circuitry Interface to other equipment is provided with Local I O Input Output or RS 232 amp RS 422 serial communications Extensive diagnostics and setup capability are provided through two Control Display Units The Standard Control Display Unit SCDU is mounted on the Drive Control PCB and consists of a 4 1 2 digit numeric LED display four push buttons and READ WRITE colored LEDs The SCDU can be used for all setup functions and many diagnostics The Portable Control Display Unit PCDU is an optional hand held device that can be plugged into any analog controlled DSD drive and used for all the same functions as the SCDU plus some advanced diagnostics There exists a version of this PCDU which will work with the serial version DSD 412 contact Magnetek for more information The PCDU has two lines of sixteen alphanumeric characters and a thirty key keyp
64. F ITS PRODUCTS FOR THE SPECIFIC APPLICATIONS BY THE BUYER NOR AS TO PERIOD OF SERVICE UNLESS THE COMPANY SPECIFICALLY AGREES OTHERWISE IN WRITING AFTER PROPOSED USAGE HAS BEEN MADE KNOWN TO IT This warranty does not apply to experimental products for which no warranty is made or given and Buyer waives any claim thereto THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT LIMITED TO ANY WARRANTY OF MECHANTIBILITY OR OF FITNESS FOR A PARTICULAR PURPOSE AND BUYER HEREBY WAIVES ANY AND ALL CLAIMS THEREFORE Limitations Of Liability IN NO EVENT SHALL MAGNETEK BE LIABLE FOR LOSS OF PROFIT INDIRECT CONSEQUENTIAL OR INCIDENTAL DAMAGES WHETHER ARISING OUT OF WARRANTY BREACH OF CONTRACT OR TORT DSD 412 is a trademark of Magnetek Inc All rights reserved No part of this publication may be reproduced or used in any form or by any means graphic electronic or mechanical including photocopying recording taping or information storage and retrieval systems without written permission of the publisher 2004 Magnetek Inc Table of Contents Warranty Introduction Drive Description The Standard Control Display Unit SCDU The Portable Control Display Unit PCDU Drive Ratings and Specifications Basic Drive Specifications Service Conditions Protective Features Power Conversion Unit Description Hardware Descriptions DSD 412 Power Supply PCB A4 Armature Interface PCB A2
65. Feature Figure 11 Speed Select Logic Input Wiring Figure 12 S Curve Accel Decel Cycle Figure 13 S Curve Accel with min S Figure 14 S Curve with 100 S Figure 15 E REG Tracking Profiles 1 Figure 16 E REG Tracking Profiles 2 Figure 17 E REG Tracking Profiles 3 Figure 18 Motor Overload Figure 19 Elevator Start Stop Timing Figure 20 Analog Signal Ground Noise Figure 21 Serial Link Connections Figure 22 Other Faulting Conditions Figure 23 I O Monitor Function Figure 24 Connector and E prom Locations Figure 25 Test Point Locations Figure 26 Drive Chassis Outline DSD 412 100 Amp Figure 27 Drive Chassis Outline DSD 412 195 Amp Figure 28 Drive Chasis Outline DSD 412 300 Amp Figure 29 Layout DSD 412 100 Amp Figure 30 Layout DSD 412 195 Amp Figure 31 Layout DSD 412 300 Amp QUICK REFERENCE FOR SET UP PARAMETERS FNCT DESCRIPTION UNIT RANGE DEFAULT SITE SITE SETTING SETTING 1 CURRENT LIMIT 0 300 250 2 USE SELF TUNE LOGIC 0 1 0 OFF VALUES 3 RTD ARMATURE AMPS ADC 2 0 50 0 1250 0 4 ARMATURE OHMS OHMS 0 001 0 100 5 000 6 ARMATURE HNY 0 0010 0 0100 INDUCTANCE 1 000 7 RTD ARMATURE VOLTS VDC 150 550 240 8 REG CROSSOVER RAD 100 1000 500 9 NOMINAL AC INPUT VAC 150 525 230 10 ENCODER PPR P R 600 1024 19999 11 RATED MOTOR RPM RPM 50 0 1150 0 1999 0 12 OVERSPEED 96 0 0 150 0 1
66. LLOWING CHECKS MUST BE PERFORMED BEFORE APPLYING THE INPUT POWER A Inspect all equipment for signs of damage loose connections or other defects B Ensure the three phase line voltage is within 10 of the nominal input voltage range of 150 to 525 VAC The drive is not sensitive to phase sequence Input power specifications are contained on the drive nameplate or the drive system Schematic Diagram C Remove all shipping devices and relay wedges Manually operate all contactors and relays to ensure that they move freely D Ensure that all electrical connections are secure E Ensure that all transformers are connected for proper voltage according to the Drive system Interconnection Diagram Drive Start up Refer to the recommended connections shown in the connection diagrams Attach a voltmeter across the 115VAC source for the control power supply at A4TB3 1 amp A4TB3 7 Apply the control and three phase power and verify that the control power is between 103 VAC and 126VAC Then press the RESET push button on the front of the power cube and observe the drive power up sequence as described below Drive power up sequence The power up sequence can be observed by monitoring the Standard Control Display Unit SCDU on the front of the power cube 1 First all of the segments on the digital LED display and all of the LEDs will light for about 1 second 2 Then the LEDs and display should extinguish The dr
67. M has not been initialized Move the NV RAM PROTECTION switch to OFF in order to allow the micro processor to initialize the NVRAM with preprogrammed default values Notice that the NV RAM UNPROTECTED LED is now lit to indicate the NV RAM PROTECTION switch position Next press the RESET push button The drive will go through its power up sequence again however this time it will initialize the unprotected NVRAM and load in factory supplied default parameter values Fan Check On drives with a blower motor power bridge fan verify that the fans are working Verify Parameters When the READY LED on the SCDU is lit all the selectable parameter data should be checked and or verified to the proper values as follows 1 VERIFY OR CHANGE EACH PARAMETER VALUE for the particular application and motor involved 2 Perform PCU DIAGNOSTICS Function 998 should to verify armature and field circuitry 3 Perform SELF TUNE PARAMETER TEST Function 997 to measure and verify various motor parameters essential for proper operation 4 STORE PARAMETERS Function 994 so that power can be removed and reapplied without losing the entered parameters INSTALLATION 5 Set the NV RAM PROTECT switch to the protect position UN PROT NV RAM light is off to ensure that set up data cannot be corrupted 6 Operate drive using external control signal inputs shown on the Interconnection Diagram 28 GND INTERCONNECT DRAWING
68. MAGNETEK UNCOMMON POWER DSD 412 DC Elevator Drive Technical Manual CS00407 06 Warranty Standard products manufactured by the Company are warranted to be free from defects in workmanship and material for a period of one year from the date of shipment and any products which are defective in workmanship or material will be repaired or replaced at the Company s option at no charge to the Buyer Final determination as to whether a product is actually defective rests with the Company The obligation of the Company hereunder shall be limited solely to repair or replace at the Company s discretion products that fall within the foregoing limitations and shall be conditioned upon receipt by the Company of written notice of any alleged defects or deficiency promptly after discovery and within the warranty period and in the case of components or units purchased by the Company the obligation of the Company shall not exceed the settlement that the Company is able to obtain from the supplier thereof No products shall be returned to the Company without its prior consent Products which the company consents to have returned shall be shipped prepaid f o b the Company factory The Company cannot assume responsibility or accept invoices for unauthorized repairs to its components even though defective The life of the products the Company depends to a large extent upon type of usage thereof and THE COMPANY MAKES NO WARRANTY AS TO FITNESS O
69. MPER FROM TB1 44 TO TB11 1 7 CONNECTION MUST BE MADE FOR PROPER DRIVE OPERATION IF MOTOR THERMOSTAT IS NOT INSTALLED COMPLETE WITH A JUMPER WIRE 8 FUNCTION OF CONTACT INPUTS DEPENDS ON PROGRAMMING OF FUNCTION 115 SEE DIAGRAM THIS PAGE AND DESCRIPTION OF F 115 24 HARDWARE RUN 8 DOWN DIRECTION F8115 OFF 0 24Vde SEE NOTE 8 RUN UP e 8 RUN DOWN x F 115 ON Eso TABLE 1 RATED MOTOR S1 FIELD CURRENT TB4 SETTING RANGE CONNECTION 1 2 3 4 161 400 40 un 7 0 160 16 2 0 e 6 9 0 X CLOSED 0 2 19 194 00 0 OPEN FAILURE TO FOLLOW THIS TABLE MAY CAUSE DAMAGE TO DRIVE AND OR EQUIPMENT Figure 9 Power Signal Wiring Notes 32 1 4002 DSD 412 P K3 T K3x 24VDC ay BRAKE PICK COMM 57 or 80 24VDC LIFT amp HOLD 24 VDC 82 RELAY COILS 24VDC LESS THAN 100 MA CONNECTIONS FOR ELEVATOR BRAKE CONTROL BRAKE LIFT INTERCONNECT DRAWING BRAKE VAC SUPPLY SOURCE BRAKE LIFT 115 VAC CONTROL POWER BRAKE PICK K3x TOT R C 9 BRAKE LIFT K6x A gt RECTIFIER AS REQ D tp R HOLD Neu ELEVATOR BRAKE COIL Figure 10 Drive Brake Co
70. ODE PROBABLE CAUSE CORRECTIVE ACTION 400 MOTOR OVERLOAD FAULT Indicates that the drive has delivered excess motor amps for a significant period of time Refer to 83 and 84 for proper set up Check for dragging elevator brake or weakened motor field A motor overload fault does not automatically shut down the drive but is annunciated via the ALARM relay output K2 See 182 401 EXCESSIVE FIELD CURRENT Indicates that measured motor field current exceeded 125 of rated current 50 Causes Partially shorted motor field coil Check motor field Wrong data entry causing unstable motor field current regulator Review and verify settings for 49 50 51 52 54 amp 55 Mis wiring of module A3 Verify that phasing is correct Wrong current tap at 4 or SW1 setting Verify Malfunction of motor field power circuit Check module A3 402 LOOP CONTACTOR FAULT The Loop Contactor auxiliary contact does not pick up or drop out within the designated time as requested by the DSD 412 drive See 102 Causes Defective Loop Contactor Aux Check for proper feedback at TB1 7 Defective Contactor Check for open coil or mechanical binding Defective Pilot Relay LPR Interference from other elevator relay contact circuits 403 FIVE MINUTE FULL FIELD Indicates that the Drive and Field Enable control circuit at TB1 9 was active for 5 minutes without starting the drive This can cause motor
71. OLTAGES MAY EXIST IN THE DRIVE CIRCUITS EVEN WITH DRIVE CIRCUIT BREAKER IN OFF POSITION NEVER ATTEMPT PREVENTIVE MAINTENANCE UNLESS INCOMING THREE PHASE AND CONTROL POWER IS DISCONNECTED AND LOCKED OUT Preventive maintenance is primarily a matter of routine inspection and cleaning The rectifier bridge heat sinks should be kept clean by brushing while using a vacuum cleaner Excess dust and dirt accumulation on the heat sinks can cause overheating of the SCRs Periodically check all electrical connections tighten as required Periodically check air filters on enclosure doors if applicable clean if dirty replace as necessary Periodically clean the cooling fans to prevent dirt buildup At the same time check that the impellers are free and not binding in the housing Each fan motor is permanently lubricated the fan should be replaced if the shaft does not spin freely IfANhen drive faults occur follow those aids based on the observed Error Fault code In some instances the fault tracing required to determine the necessary repairs is too extensive to list in detail in this manual for those faults it is recommended that Magnetek be called for assistance Some of the probable causes in Table 13 Fault Code Descriptions mention problems at connectors all of which are on the Drive Control PCB Table 14 Connector Definitions describes the basic function of each connector and Figure 24 Connector and E prom Locatio
72. RMOSTATS BOWER po LPR SIGNAL LPR oe SENSING PICK UP ME RELAY LOOP CONTACTOR 2 CONTACTOR E PILOT RELAY CN HEAT SINK COOLING FAN Figure 1 DSD 412 Block Diagram A 16 INTRODUCTION F4 r 11 0000 e SCR POWER BRIDGE 12 SCR REGEN ME MOTOR lt CURRENT SENSOR SJ ONE RTI ME ANN CN T SIGNALS lt 11 4 A L RIPPLE FILTER DB RESISTOR ARMATURE INTERFACE PCB 5 18888 STATUS UN PROT POWER CONVERSION UNIT LEDS 8 NV MEM MICROPROCESSOR 5 8 i RE LOCAL CDU 3 RAM amp r3 EPROMS DUAN FORT MEM PROS SWITCH DRIVE CONTROL UNIT MICROPROCESSOR NV RAM RAM Ie IN OUT DRIVE CONTROL PCB amp EPROMS DRIVERS RS 232 OR RS 422 SERIAL PORT LOCAL CONTROL O 1 CONTROL SIGNAL OR WIRING OPTIONAL SERIAL LINK TO CAR CONTROLLER OPTIONAL PCDU PROGRAMMER Figure 2 DSD 412 Block Diagram B 17 INTRODUCTION DC ARMATURE FUSE F4
73. Remove the 2 cap screws securing the module to the heat sink and remove the damaged module 3 Wipe the mounting surface clean Use a new thermal mounting pad or a thin coating of thermal grease on the bottom of the replacement module Orient the MAINTENANCE module with AC1 amp AC2 terminals toward the right side of the unit Use cupped washers under the mounting screw heads Tighten mounting hardware to 18 inch lbs 4 Reassemble the A3 PCB and all electrical connections Repair of the 195Amp Assembly The layout of basic component parts of the 100 195ADC DSD 412 Figure 3 Component Layout Front View Snubber Circuit The snubber capacitor components are mounted on the Snubber PCB Power resistors are mounted on the heat sink Snubber circuit repair is either PCB replacement or resistor replacement When replacing resistors a new thermally conductive pad or a thin even coating of thermal grease is required between the device and the heat sink Removal and Replacement of the Armature Interface PCB 1 Label and disconnect the gating leads from the Armature Interface PCB by gently squeezing the white connectors J30 32 amp J34 36 and pulling straight out There is no need to remove the leads from the SCR modules unless they later prove to be defective 2 Tag and remove each wire going to TB 5 Disconnect J24 and J27 from the PCB 3 Remove 9 screws securing the Armature Interface PCB in place and remove the PC
74. SCR Rectifier power module for motor field Replace may occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 95 DRIVE FAULTS ERROR FAULT CODE PROBABLE CAUSE CORRECTIVE ACTION F930 Motor field current does not increase to near rated amperes within 6 seconds Verify motor field current with an independent clamp on DC ammeter Probable causes Motor field not connected Not enough voltage available to achieve rated field current Maximum Vdc output to motor field is 0 9 X Vac input at terminals 1 AC1 8 AC2 At 10 low line the maximum Vdc output is 0 8 x Vac If this voltage is not enough to produce rated field current through the resistance of the motor field winding reconnect the field windings for lower voltage and higher current or provide a step up transformer for the motor field circuit as shown in Figure 2 1 of this manual Improper settings for the connected motor field Insure that the proper current tap at A3TB4 is used and that calibration switch A3S1 is set correctly and that adjustments 49 50 52 and 55 are set correctly Faulty SCR Rectifier power module for motor field Replace may occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 F931 Excessive open circuit voltage to motor armature circuit Measured armature voltage is greater than 10 of rated volts 7 Probable Causes Motor is rotating producing CEMF Unbalanced SCR leakage
75. SD 412 300 Amp 117 LAYOUT DRAWING 100A FRONT VIEW UF POWER CUBE 100A S3STO60X XXXX GND Li t2 t3 Pos O 53 TB3 m 8 7 6 5 4 3 2 1 228 CUBE ID PCB 46S03577 1XXX 5 ARMATURE VOLTAGE FEEDBACK A1 A2 ix e Je B1 rERMINeL BLOCK QTY PER DRIVE SPECIFICATION 123456789 0111213 0561718 19 20 21 22 23 24 25 26 2728293 3 32 33 34 35 3 37 38 39442 TBI e ofo o ojo o o ofo o ofo o c 43 44 45 46 47 48 49 50 51 52 53 54 55 56 5758596 61 62 63 64 65 66 67 68 69 70 7L 72 73 74 75 16 77 78 79 80 81 82 83 84 S1 l BIER SR 3 5 784 gt gt gt lt _ 1 ev gt FAN WHEN SUPPLIED Figure 29 Layout DSD 412 100 Amp 118 LAYOUT DRAWING 195A
76. SD 412 If the encoder must be connected to two receivers DSD 412 and car controller the cable should run from the encoder to the drive with this portion of the shield connected at the drive and then from the Drive to the car controller with the portion of the shield connected to the car controller Do not tie the two shields together INSTALLATION Electrical Hook up Ensure that wire size and disconnect devices conform to the installation contractor s drawings and to all applicable codes Power Connections The three phase input power to the drive is fuse protected internal to the Drive However it is recommended to provide branch circuit protection by means of a circuit breaker in accordance with the National Electrical Code USA or as may be required by other local electrical codes Signal Connections All low power low voltage wiring to the DSD 412 controller should be run separate from the 115VAC or higher power connections and the DC motor armature and field connections These include Encoder Wiring Speed Reference Wiring Pre Torque Reference Wiring 24 VDC Logic Inputs Analog Outputs Open Collector Logic Outputs Rewiring these signals in shielded wire is recommended to avoid noise pickup Grounding The DSD 412 controller the utility power system feeding it and all other connected power equipment should be grounded as follows e The facility power ground and grounding wire sizes should comply
77. This value should agree with the transformer nameplate value as adjusted by any primary taps within 5 volts This value sets the Low Line and Excessive CEMF detection thresholds DRIVE SETUP AND ADJUSTMENT Function 10 Encoder P R Units P R Range 600 19 999 Default 1024 This entry sets the per channel pulses per revolution per the encoder nameplate Function 11 Motor RPM Units RPM Range 50 0 1999 0 Default 1150 This entry sets the motor speed at rated elevator contract speed The motor RPM X Encoder PPR X Encoder Motor Ratio is what will actually be speed regulated May be used to compensate for minor sheave diameter variations Adjust this setting to obtain the correct linear speed at 1 0 per unit velocity reference Function 12 Overspeed Units Range 0 0 150 0 Default 110 0 This entry sets the positive and negative overspeed trip point of the motor used on the drive If the motor speed exceeds this value the drive will fault This value is entered as a percent of rated motor speed RPM Function 14 Volt Sense Units Range 0 0 100 0 Default 25 0 This entry sets the minimum armature voltage where the tach loss and reverse tach functions will become operative This parameter prevents nuisance tach faults at low speeds and high torque loads For example if the rated motor armature voltage is 500 Vdc and this input is set at 10 the tach loss functio
78. USES TEST GOOD WITH OHMMETER Control power applied before 3 phase armature supply Short circuit in 15 V wiring circuits prevents analog circuit measurements from working Verify that 3 phase power and control power are supplied simultaneously Or that drive faults will be RESET by external circuits after 3 phase power is applied Read power supply voltages at test points near the top front of PCB A1 TP8 is circuit common TP1 2 3 amp 4 just below J11 to right of silver metal can U8 should be 24V 15V 15V 5V 5 respectively If voltages in step 2 are low unplug ribbon cables at J13 and J14 A1 PCB lower left If power supply voltages are restored pursue cause of short circuit on those cables Suspect faulty current transducer or cable Remove power supply cover Disconnect power supply at J11 Re measure voltages at marked test points on power supply PCB If voltages are OK with J11 disconnected and fault was not found in step 3 replace main PCB REPEATED FALSE OVER TEMPERATURE INDICATIONS Leakage current between the thermistor on the heat sink and the thermistor leads can cause an elevated temperature to be measured Replace failing thermistor and or thermostats Conditions out of the range specified tempurature range Figure 22 Other Faulting Conditions 98 Input Output Verification Input Output Signal Verification The Control Display Unit CDU function 981 may be used to d
79. Underflow fault 102 for example the SCDU will display 102 UB Green LED Lit Other errors currently in the Error List can be viewed by pressing the ENTER key to display the Error Code again then use either the A or key to move to the next slot in the list The procedure outlined above should be repeated as necessary to view the Error Code number for other errors in the Error List Non Volatile Ram Access Every parameter that the drive uses has three separate areas in memory associated with it There is a factory set default value for each parameter which is stored in the read only EPROM chips There is an area in the active RAM which the drive uses while it is running There is also an area in NVRAM reserved for each parameter The values in the NVRAM area are copied to the active RAM every time the drive is powered up or the reset button is pressed This split level approach makes it possible to return to the last set of stable parameters in NVRAM if some errors are made during fine tuning of the active drive parameters The purpose of this function is to perform transfers between the NVRAM parameter list and the active parameter list Function 994 is used to perform the transfer of data between the NVRAM and active parameter lists The process for copying data to or from the NVRAM parameter list is as follows 1 Usethe A and keys to select function 994 from the function level The t
80. WARE A4 LUG RANGE 6AWG 350MCM 4PL 7 TORQUE SET SCREW 51 375 IN LBS 4 5PL TB3 3 NOTE UNPLUG TBS 1 FROM HEADER B WHILE INSTALLING WIRES 18 06 128 CUBE 1 0 A2 21 19 TB5 ARMATURE 2 VOLTAGE p FEEDBACK J2 TB1 TERMINAL BLOCK QTY PER DRIVE SPECIFICATION 4 ll 2 AS ALAS AE AL RAS OS 5253 MSS SE DUBE BMA wR T jm MOTOR FIELD CONNECTIONS LHR AR 2 39 FLOW say ez qu 4 1 ALLOW APPROX 4 BELOW FOR SERVICING OF FAN AND UNRESTRICTED INTAKE e BOTTOM COVER SEE NOTE 1 CUSTOMER INTERFACE PORT NOTES 1 OPTIONAL TOUCH SAFE COVERS J1 TB1 Fa B Figure 27 Drive Chassis Outline DSD 412 195 Amp 116 OUTLINE DRAWING 300A
81. a and Stiffness 40 41 amp 42 are used by both the velocity regulator E Reg and the velocity control portion of ARB therefore adjustment of 40 41 amp 42 will alter the performance of anti rollback controls A high setting for Stiffness 42 will help the velocity control respond to changes in load but will cause longer settling times for both velocity and ARB position regulation Be sure to tune the velocity controls of the elevator BEFORE adjusting controls for ARB Bandwidth and Damping 131 amp 132 Changing any ARB settings 130 133 will not interfere with other velocity control tuning Elevator rollback is a function of gravity load unbalance of the car This is what causes the car to move when the brake is released even though the reference velocity may still be at zero However there is a finite time required for ARB to measure unwanted car motion via the encoder produce a counteracting motor torque and then return the car to the original position The reaction time is controlled by 131 ARB Bandwidth The smoothness and time to settle is controlled by 132 ARB Damping The need for ARB starts only when the elevator brake is actually released not when it is told to release A subtle difference in electromechanical timing But the allotted time for ARB to function will cease as soon as the velocity reference internal or external moves away from zero speed and crosses the threshold identified by 1
82. ad Parameters are entered and displayed in common understandable units The drive can be completely setup prior to actual running and changes be made during operation Keypad entry of changed parameters protected memory and factory default values allow the operator to modify data with minimum risk to the process The DSD 412 is a power cube Depending on rating of the unit the power cube is in one of four chassis sizes Refer to the outline dimension drawings furnished in section 6 Each power cube is designed for mounting inside a qualified electrical enclosure Space allowances for air circulation additional components outgoing terminals and wire bends must be provided Hinged door swing out clearance is the same as the width dimension INTRODUCTION Drive Ratings and Specifications The DSD 412 Elevator Drive is designed to be connected to a three wire ungrounded power system or a four wire grounded or ungrounded power system Basic Drive Specifications e 10 300 Amps Special order up to 1285Amps or 600VAC 3 Phase 48 62 Hz 1 0 Service Factor 150 full load current for one minute 250 full load current for 5 seconds Full wave six pulse SCR control Regulation of set speed to 0 0596 with digital encoder speed feedback e Current regulated shunt field control e Automatic Field weakening Self adapting to incoming line power Service Conditions Line voltage 150 525 Vac 10 3 phase 115 volt 1
83. adings indicate a damaged SCR device the entire Power Bridge Assembly must be removed for repair access of the individual SCRs Removal and Re installation of the 300 Amp SCR Power Bridge IMPORTANT When removing wires and connectors during dis assembly make sure that they will stay in position or are properly labeled for reconnection 1 Remove the entire Power Bridge in the following sequence a Remove the ribbon cable connector J24 and Current Transducer cable J15 from the Armature Interface PCB b Remove the armature voltage feedback wires at TB5 on the Armature Interface PCB Tag these wires for proper re assembly c Remove AC input fuses F1 F3 d Remove the DC output lug at top left of the drive chassis e Remove the buss bar bolt to the Current Transducer at lower right of the chassis f Remove 2 hold down nuts on the upper buss bar g Remove 2 hold down nuts at the lower buss bar h The SCR Power Bridge is now loose Remove it by pulling outward tilting at the bottom so that the large tubular resistors cam clear the fuse mounting bracket 2 Reinstall a completely assembled SCR Power Bridge follow all of the above steps in reverse order and a Use thin coating of Joint Al Z compound at all electrical buss bar to buss bar interfaces b Use the correct washers nuts and bolts as were removed for re assembly Start all nut and bolt hardware before tightening down at any loca
84. as required to suppress system resonance Function 191 Notch Period Units none Range 10 0 Default 7 Controls the center frequency of the rope resonance notch filter This is not a continuous adjustment as the frequency is selected in steps according to Table 8 Notch Period steps 63 ENTRY NUMBER NOTCH FREQUENCY 100 Hz NI Table 8 Notch Period steps DISPLAY MONITOR FUNCTIONS Function 192 F413 DETECT LVL Units PU Range 0 05 0 50 Default 0 05 This parameter sets the level of difference of the field current reference and the feedback at which the drive will display the F413 warning If all of the criteria is correct in the field circuit and in the parameter setup the F413 warning should not appear The tracking error can be monitored on F620 If the error is out of tolerance due to low or sagging line voltage and the issue cannot be resolved increase this parameter to eliminate the warning This level is in PU where 50 rated field amps 1 0PU ie 0 05 would correlate with 5 difference between the feedback and the reference Display Monitor Functions Function 600 Car Speed Units This display is the measured velocity of the elevator Units are as set in function 17 Function 601 Motor Speed Units RPM This display is the measured elevator motor RPM Function 602 Dictated Speed Reference Units
85. at the motor thermostat is open at A4TB3 2 to A4TB3 8 A motor thermostat fault does not automatically shut down the drive but is annunciated via the ALARM relay output K2 See 182 Causes If the point is closed but the fault is still present replace the power supply Table 13 Fault Code Descriptions 97 DRIVE FAULTS OTHER CONDITIONS PROBABLE CAUSE CORRECTIVE ACTION NO LED DISPLAY WITH POWER ON No power at TB3 or failed power supply Verify 115 Vac control voltage at TB3 1 amp 2 Verify that cable J11 is seated properly Short circuit on external wiring dragging down the power supply Verify by temporary removal of wires at TB1 48 82 amp 1 If display operation is restored fix external problem Short circuit internal to current measuring transducer Verify by removal of J27 If display operation is restored replace the current transducer DO NOT RUN THE DRIVE WITH CURRENT TRANSDUCER DISCONNECTED 5 Faulty or missing or faulty socket connections at U13 14 39 40 LOSS OF STORED PARAMETER DATA Severe electrical disturbance with NV Protect switch in OFF position or failure to actually save the data or weak battery within U56 Remember to SAVE the data when parameters are changed See Section 3 6 Return NV Protect switch to ON when parameter data changes are completed Magnetek recommends replacing U56 every 8 years DRIVE DISPLAY INDICATES BLOWN FUSES WHEN ALL F
86. bances Reducing the Speed Bandwidth with an increased Stiffness setting may be an appropriate countermeasure Setting Gain Switch Speed and High Speed Bandwidth 105 amp 39 If higher settings of Speed Bandwidth and Stiffness are necessary to achieve repeatable good floor landing and take off characteristics but rope oscillations or other mechanical vibrations occur at higher speeds a good countermeasure is to lower the bandwidth setting gain at higher speeds Set the Gain Switch Speed 105 to a speed below where the vibrations occur Set High Speed Bandwidth 39 to a value less than that of 40 to help suppress system oscillations Setting Tach Rate Gain 107 This function controls derivative encoder feedback Increase this setting to suppress rope stretch bouncing or similar other disturbances Very helpful in high rise buildings for smooth landing performance However This feature can sometimes cause amplification of minor vibrations causing them to become worse Keep this adjustment set to zero unless demonstrated to provide a useful purpose DRIVE SETUP RATED SPEED Velocity Reference Speed Feedback with Bandwidth 40 set to 10 radians 5 100 mSec tracking delay P E Speed Feedback with Bandwidth SP 40 set to 5 radians D 200 mSec tracking delay 0 ZERO TIME SPEED ACCEL TIME E Reg Velocity Tracking with proper PU Inertia No ove
87. current Drive Param 3 defines motor Per Unit current in amperes T Time to trip setting 83 at motor current of 0 5 per unit current Ko Maximum Per Unit current that will not cause an Overload Trip 84 The USA National Electric Code NEC requires that the overload be adjusted to detect overheating of the motor and motor wiring by using rated motor current as the comparison base This is not the same as rated current capability of the drive The NEC requirement is that the overload must trip at 1 15 Pu current no time specified and after 60 seconds at 1 5 Pu current and after 10 seconds at 2 Pu current It is recommended that the default values of Ko 1 1 and T 50 be used This will provide no tripping with average motor current of 1 1 Pu or less and a tripping time of 62 sec at 1 5 Pu See the timing graph of Figure 18 Motor Overload Seconds Overload Trip Time Ko 1 1 To 50 200 0 150 0 100 0 50 0 1 1 2 14 1 6 1 8 2 2 2 2 4 26 Per Unit Current 2 8 MOTOR OVERLOAD Ko 1 1 T 50 Figure 18 Motor Overload 72 Sticking Brake Detection A sticking elevator brake can be detected by observing Speed Error The unexpected friction caused by a sticking brake will create an abnormally large speed error in order to get the large motor current necessary for t
88. ds to the Armature Interface PCB at plugs J30 32 and J34 36 If the gating leads were removed from the SCR module the white gate leads go directly down to the SCR module pins closest to the end of the module No wires cross If the assembly had red cathode leads those leads plug into the SCR modules next to the gate leads 13 Reconnect wires going to A2TB5 1 and A2TB5 2 Reinstall plugs at J24 J27 and J29 14 Verify and reinstall fuses Cooling Fan Replacement The cooling fan is located inside a plenum box near the bottom of the chassis Remove 2 screws from each side of the chassis for access The 115VAC supply plugs into the side of the fan motor Thermistor Replacement The thermistor connects to the Armature Interface PCB at J28 It is located on the heat sink Remove the Armature Interface PCB for replacement access Place a light coating of thermal grease or Joint Al Z on bottom side of the thermistor before re assembly Current Transducer Replacement The Armature Current Transducer is mounted on the left side where the buss bar can pass through it Remove the Armature Interface PCB for replacement access Remove the DC output buss bar Two screws on the chassis side wall hold the transducer in place MAINTENANCE Repair of 300Amp Assembly Magnetek recommends having an entire 300 amp drive chassis available as a spare part in order to get a faulty unit back in operation as quickly as possible It is also
89. during the linear portion of the acceleration or deceleration ramp will be 1 function 40 seconds Increasing the value of Function 40 will make the drive more responsive but may also cause unwanted amplification of mechanical vibration or rope resonance Function 41 Per Unit Inertia Units SEC Range 0 10 9 99 Default 2 00 This value is the ratio of the effective inertia of the moving elevator system mass to the rated torque strength of the motor The units seconds would be the time it would take to accelerate the elevator inertia to rated speed using rated motor amps This value affects the feed forward gain of the velocity regulator and affects how well it will follow a changing reference speed Function 42 Stiffness Units Range 0 2 9 9 Default 1 0 This setting affects the proportional gain and Phase Margin of the regulator Increasing this setting will make the regulator more responsive to correct mechanical load speed variances but can cause it to amplify DRIVE SETUP AND ADJUSTMENT unwanted mechanical disturbances Reducing the setting value will provide smoother operation but at the expense of time delayed reaction to velocity errors particularly noticeable when re leveling Function 49 Weak Field Current Units ADC Range 0 2 40 0 Default 40 0 This input is the motor field current the drive should provide at rated motor RPM Set this value to produce rated motor CEMF no
90. e 0 Off 1 On Default 0 OFF This is a logic input that is used to activate an over speed multiplier value function 81 When running the test increase F 12 to prevent the drive from faulting on Overspeed Fault 97 Function 81 Over Speed Mult Units Range 1 00 1 50 Default 1 00 This is the value of speed reference multiplier that will be used to run an elevator over speed test when function 80 is ON This function also multiplies function 82 Function 82 Reference Multiplier Units Range 0 500 2 000 Default 1 000 This value is a multiplier for external analog or serial link velocity references It may be used to adjust the actual calibration of the reference signals or to cause the elevator to run ata different speed from a 10 volt analog or other full scale serial reference command The elevator will run at Rated Speed function 11 and function 17 from an analog reference of 10V when function 82 is set to 1 000 and function 80 is OFF Function 83 Motor Ovid Tout Units SEC Range 2 0 500 0 Default 48 0 DRIVE SETUP AND ADJUSTMENT This value shapes the motor overload time out curve Function 84 Motor Overload Level Units PU Range 0 50 2 00 Default 1 15 This value sets the threshold level where the motor overload function will begin to operate Sustained motor current above this value will eventually cause an overload trip according to the time
91. e starting action The adjustments made so far should not alter landing position accuracy Ride the car to observe the quality of adjustment If weights are available load the car to payload capacity Repeat the 84 observations and adjustments of 4 with a full load In this case the initial movement should be downward Then repeat floor runs as in 5 with a full load Ride the car to verify smoothness Adjustment procedure is complete ARB Adjustment Hints And Cautions 1 Caution the ARB function can increase regulator bandwidth far beyond that required for controlling the speed of the elevator It does so at only near zero speed but when the ARB gain bandwidth is boosted it is possible that one or more mechanical resonant frequencies may become excited to produce unacceptable vibration If an annoying vibration does occur try to determine the resonant frequency Then use the notch filter to tune it out if possible Be aware that the notch filter does cause additional phase shift lag This can and will interfere with the operation of E Reg and ARB Tune the notch filter to the resonant frequency and adjust notch depth to the smallest value that suppresses the vibration Then turn ARB off and verify or re tune E Reg to yield acceptable performance Then re tune ARB settings to control rollback Some hoist ways may not be compatible with high gain ARB settings The adjustment settings for Speed Bandwidth Per Unit Inerti
92. e Low Speed logic indicator will become active to indicate a door pre opening speed Output function F 3 Select zero speed Will cause drive to decelerate to zero speed amp hold car position When speed drops below the setting of 63 the Zero Speed logic indicator Output function J or K will become active 4 Set elevator brake Wait the appropriate amount of time for the brake to drop or use a brake limit switch to confirm when the brake is physically set Then 5 Open Hardware Run contact or Run Up or Run Down contact Will cause drive to stop controlling speed turn the Run Engaged logic indicator Output function C off and ramp armature current down to zero in time set by function 85 Drive will open LPR contactor amp Loop confirm when Ramp down is complete If contactor confirm fails to open F402 fault will result 6 Open Safety Chain if desired Must remain closed for current ramp down to happen If current ramp down is not desired set 85 to minimum Expect some contactor barking If Safety Chain opens unexpectedly while drive is running F405 fault will result Safety chain may remain closed 75 DRIVE SETUP 7 Open Drive amp Field Enable if desired Will cause field current to go to stand by idle value May remain active if drive will be restarted shortly However if drive is not restarted within 5 minutes with Drive amp Field Enable active F403 fault w
93. e car comes to a stop the observation is complete set the brake and stop the drive again through normal control channels Do so and observe that a contactor picks and the drive does start b There may be some initial upward motion but the car should return to its original position within a second or so c When motion is halted there will be motor armature current producing torque holding the car This can be observed at 611 on the local display or a separate DC clamp on ammeter if available d Set the brake and turn the drive OFF via normal commands In that order to prevent the car from drifting away 4 Repeat 3 several times and a Increase the setting of 131 ARB Bandwidth to reduce the amount of initial movement as desired But there may be more jerkiness Reducing the setting of 131 will allow more movement but with less jerk Adjust 131 for a good compromise b Reduce the setting of 132 ARB Damping to speed up the position recovery or increase the setting for a softer recovery as desired c If oscillations occur release the brake and shut down the drive or reduce the setting of 131 to stop them This may be a practical limit for position tightness in this particular hoistway See the hints below for using the notch filter Change the reference velocity to run the car at normal speeds Make several empty single or multiple floor runs up and down to observe the complet
94. e descriptions for adjustments 89 90 91 amp 92 Adjustment Function Descriptions Function 1 Current Limit Units Range 0 0 300 0 Default 250 This entry sets the positive and negative current limit for the drive Set as a percent of Rated Armature Amps Function 3 Function 2 Use Self Tune Units Logic Range 0 Off 1 On Default 0 OFF This entry selects the source of critical numeric value adjustments for tuning the motor armature current regulator Values for motor resistance R motor inductance L and motor field time constant L R may come from either manually entered values or automatically determined by a self tune measurement With function 2 set to 0 OFF the settings of functions 4 6 and 51 will be used With function 2 set to 1 ON the values determined by self tuning and held at display locations 613 614 and 615 will be automatically used Note Setting this function to a 1 will not change the values stored in function 4 6 or 51 Function 3 Rated Arm Units ADC Range 2 0 1250 0 Default 50 0 This entry is specified by the motor nameplate or Rated Run Current amps for the motor used with the drive Function 4 Armature Ohms Units OHM Range 0 001 5 000 Default 0 1 The total armature circuit resistance The value to be entered is best measured by monitoring MEASURED F613 after the SELF TUNE function has been completed This val
95. e to commence when the speed reference is set to zero OR when the hardware Run logic input is de energized A brake function output must also be enabled Function 93 Analog Out 0 Bias Units PU Range 1 0 to 1 0 Default 0 0 Provides an offset adjustment for analog output channel 0 Function 94 Analog Out 1 Bias Units PU Range 1 0 to 1 0 Default 0 0 Provides an offset adjustment for analog output channel 0 Function 95 Analog Output 0 Units Logic Range 0 8 Default 1 Sets the specific analog output signal to be observed at TB1 45 and TP41 Selections are 0 Trace Buffer 0 1 Raw Speed Command 2 Ramped Speed command 3 Encoder Feedback 4 Armature Current Reference 5 Measured Armature Current 6 Measured Armature Voltage 7 Field current Reference 8 Measured Field Current The voltage measured will be a function of the operating level of the parameter being displayed and the signal multiplier function 97 Signal range is limited to and will saturate at 10V Function 96 Analog Output 1 Units Logic Range 0 8 Default 3 This entry sets the specific analog output signal to be observed at TB1 46 and TP44 Selections are 0 Calculated CEMF 1 Raw Speed Command 2 Ramped Speed command 3 Encoder Feedback 4 Armature Current Reference 5 Measured Armature Current 6 Measured Armature Voltage 7 Field current Reference 8 Measured Field Cu
96. ed elevator speed Effective only when internal pre set speeds are used Function 171 Accel 2 Time Units SEC Range 0 50 15 0 Default 5 00 Total acceleration time in seconds for S curve ramp 2 to occur from zero speed to rated elevator speed Effective only when internal pre set speeds are used Function 172 Decel 1 Time Units SEC Range 0 50 15 0 Default 5 00 Total deceleration time in seconds for S curve ramp 1 to occur from rated speed to zero speed Effective only when internal pre set speeds are used Function 173 Dec 2 Time Units SEC Range 0 50 15 0 Default 5 00 Total deceleration time in seconds for S curve ramp 2 to occur from rated speed to zero speed Effective only when internal pre set speeds are used Function 174 Accel 1 S Units Default 25 0 The percent of time that will be spent in the controlled jerk or S portion of the timed ramp Range 0 1 100 0 59 DRIVE SETUP AND ADJUSTMENT curve during ramped acceleration 1 A percent S of 0 1 corresponds to almost all linear acceleration A percent S of 100 will make the S curve 1 smooth with no linear acceleration portion Effective only when internal pre set speeds are used Function 175 Accel 2 S Units Range 0 1 100 0 Default 25 0 The percent of time that will be spent in the controlled jerk or S portion of the timed ramp curve during ramped acceleration 2 A percent S of 0 1 c
97. eed while the relatively low gain PI error regulator is required to only make minor corrections This is ideal for elevators and lifts as they tend to be relatively high inertia loads with a steady load torque offset while running The steady state load torque is a function of elevator cab payload and counterweight gravity balance and will be different for each elevator run as it is a function of payload and direction Most elevators will have minimal operating friction Verify that settings for basic parameters are correct and that the armature current torque regulator and motor field regulator are properly tuned The critical adjustments include Motor armature 1 Self Tune 2 Rated Amps 3 4 L 6 VDC 7 Ix 8 8 VAC 9 Motor Field WkAdc 49 RtdAdc 50 L R 51 VDC 52 Istndby 53 Response 54 SourceVAC 55 Speed Loop EncoderPPR 10 RPM 11 Ratio 16 Rtd Spd 17 Setting Per Unit Inertia Function 41 Be sure to have completed adjustment of the motor field current regulator BEFORE making final adjustments of system inertia Start with default values for Response Bandwidth 39 amp 40 Per Unit Inertia 41 and Stiffness 42 Use a speed profile with a minimal amount of S Curve smoothing Select two elevator landings far enough apart so that the elevator can attain maximum speed between stops But not the end landings during initial tuning It is a good idea to begin at a restricted low speed
98. een placed and asserts the Drive and Field Enable contact at TB1 9 the drive will re enable the 3 phase primary power resynchronize to the power line and restart cooling fans While 3 phase power is OFF motor field current will be zero amperes regardless of the setting of Standby Amps set at 53 The DSPR feature is programmable by selection of output option L on relay K4 See table 4 2 3 The time delay before power is turned OFF is adjusted at 88 DSPR Delay This timer is held in reset whenever the drive is enabled and timing for a delayed shutdown whenever the drive is at rest and the Enable control line is inactive If the DSPR delay time value at 88 is set to zero 0 the timing function is defeated and power will remain continuously ON A pilot relay must be added to panel wiring to operate a primary power contactor 115 VAC control power to the drive must remain ON for this feature to be operative Refer to installation diagrams supplied in Section 2 at Figure s 2 1 for all suggested 86 electrical connections Normal operation of DSPR when power is first applied or when a Dive Fault Reset is performed is that Relay K4 will be de energized or will become de energized turning main power OFF It will then energize re energize to turn 3 phase power ON Setting DSPR delay at 88 to zero will not change that part of the operation If DSPR is not wanted or other external logic prevents the 3 phase power from actually
99. ero speed reference is selected CAUTION The direction control from this input is not interlocked with any other logic condition This facilitates direction control while re leveling or performing a quick reverse while heading for a home landing but it also means that an intermittent contact or broken wire can make the car go in the wrong direction 2 Run Up amp Run Down 115 On Two separate logic inputs are provided to start the drive in either the up or down direction The Drive amp Field Enable signal must also be energized and remain so for this to occur If both Up and Down directions are active simultaneously the drive will not start This prevents a single relay contact or wiring failure from starting the drive in the wrong direction Once running the direction may be reversed by closing the contact for the new direction and releasing that for the old This is allowed at any speed If the command contact closures overlap speed control will remain active and the contactor will not drop Using Pre Torque When enabled by function 114 the value and direction of the analog pre torque signal input will be captured and latched each time the drive is started by closure of the motor dc loop contactor in response to activating the Run command That value will be used to pre load the speed error integrator and provide a starting value of motor armature current and torque When set properly that torque will be s
100. es it must have been previously programmed in the the drive The following steps show how to display a given value on the SCDU display STANDARD CONTROL DISPLAY OPERATION 1 Usethe A and keys to select the function number between 600 and 799 to be accessed The two colored LEDs remain off during this step For example if 600 is selected the SCDU display will be 6 0 0 2 Press the DATA FCTN key to enter the Data level for this function number The green LED is lit to indicate that actual data is currently being viewed If the data for function 604 is currently at 20 94 for example the SCDU display will change to Both LED s Off 20 9 4 Green LED Lit The SCDU s display is updated immediately if the value for the selected function changes NOTE Values displayed with these function numbers cannot be modified Error Reporting The drive has two methods available to report errors and faults Each error condition may utilize ONE OR BOTH OR NEITHER of the reporting methods The most conventional method is called fault recording If this method is enabled for a particular error the red FAULT LED and a unique fault code number will appear on the SCDU at the moment when the error occurs Each occurrence of a fault is recorded in an area in RAM called the Fault List The Fault List stores the 16 OLDEST faults and stops recording faults as soon
101. fault 102 is on the Fault List for example the SCDU display will change to 40 102 The contents of the Fault List may be examined by using the A keys The Y key moves down fault list while the A key moves up the fault list The first fault in the list is the first fault actually declared The SCDU displays the word after the last fault has been displayed Green LED Lit E nid Green LED Lit Error Display The drive is able to store the most recent 16 errors that have been reported to the Error List This list is constantly updated with the newest error overwriting the oldest in the list This list is held in battery backed up RAM NVRAM so it is retained when power is lost Each time an error condition occurs and if its entry in the Disposition List is set to allow recording in the Error List that new error is placed in the list Function 800 Reserved for viewing the Error List in NVRAM The steps to view the Error List are as follows 1 Usethe and keys to select function 800 The two colored LEDs remain off during this step 2 Press the DATA FCTN key to enter the Data level for the view error function The green LED is now lit to indicate that an error Both LEDs Off STANDARD CONTROL DISPLAY OPERATION code is currently being viewed If the error in this slot is a Numeric
102. ferent from that for the motor armature If optional dynamic braking resistors DBR are present they are applied across the motor armature to dissipate rotational energy whenever the loop contactor is dropped out This helps to bring the motor to a stop even when utility power is lost The largest component of the PCU is the SCR bridge Heat Sink Assembly The heat sink is an extruded aluminum structure that dissipates the heat generated by the SCRs mounted on the front surface or between heat sink sections in large size power cubes The SCRs control the current to the motor armature and in turn are controlled by the Armature Interface PCB mounted in front of the SCRs Three input power line fuses are provided A DC Bus fuse protects the motor armature circuit A thermistor and thermostat on some ratings senses heat sink temperature and gives an over temperature warning if an over temperature occurs Access to the SCR Bridge is obtained by opening the hinged door containing the Drive Control 1 WARNING Opening the hinged door with power applied to the drive exposes dangerous voltage levels The hinged door should only be opened by a qualified service technician and only when the power to the drive is turned off Hardware Descriptions DSD 412 Power Supply PCB A4 Provides 5V 15V 15V and 24V to the control circuits and has fold back current limit protection It also provides 115VAC connections f
103. field burnout Check car controller relay logic 404 OPEN ARMATURE CIRCUIT A large current error existed for 75 second Check the DC link fuse F4 Check motor armature circuit wiring Check power poles in the DC loop contactor 405 SAFETY CIRCUIT FAULT The Safety Circuit is not closed The Drive has detected that the Safety Circuit wired between TB3 1 and TB3 6 on the Power Supply 4 was not closed for 100 MS before a Drive Run command was given or that it opened unexpectedly while the loop contactor was closed Check for intermittent connections in the Safety Chain 406 LOW LINE ALARM Indicates that the input AC line voltage sagged more than 10 below nominal line volts as set at 9 This does not shut down the drive but may be an indication that work is needed to avoid future Low Line shut down faults F904 89 DRIVE FAULTS ERROR FAULT CODE PROBABLE CAUSE CORRECTIVE ACTION 407 DCU CEMF FAULT The CEMF of the motor exceeded 109 of measured AC input voltage to the Drive This is a warning only and does not cause an automatic drive shut down Causes 3 Phase Input AC Line Voltage drooped or is too low CEMF on motor rises above VAC input voltage Motor field current set too high Verify weak field set point 49 Vs desired motor voltage at top speed Check amp correct motor field control tuning to prevent CEMF overshoot Review and verify settings for 49 50 51 52
104. han F192 Default 0 05 for 5 seconds This is not a shut down fault 1 Check AC voltage on AC1 and AC2 Typically 1 5 to 2 5 times VAC min where VACmin VDC 0 9 or Full Fld Amps Field resistance 0 9 2 Drives not using correct self tune values and or field response set incorrectly 3 Monitor F620 Trkg Diff it should be less than F192 F413 Detection Level By setting F192 higher it can eliminate this warning Caution should be observed prior to doing this If the proper conditions exist the data on F620 display should not exceed 0 05PU for over 5 seconds 90 DRIVE FAULTS ERROR FAULT CODE PROBABLE CAUSE CORRECTIVE ACTION 414 SOFTWARE COMPATABILITY FAULT Indicates that the PCU U13 U14 Version and or Revision won t operate with the DCU U39 U40 installed in the drive 1 Contact Magnetek 13 17 21 26 100 104 112 114 220 234 240 254 926 MISC FAULTS Problem with either hardware or software on the Drive Control PCB See list at Section 4 5 Check and or replace U13 014 039 040 EPROM s Replace Drive Control PCB 117 118 SERIAL COMMUNICATION FAULT 117 Serial comm not started within 20 seconds after drive reset or power up 118 Valid serial comm message not received for more than 150 MS 1 Ensure that host is connected and sending valid messages 2 Look for and correct electrical grounding noise interference problem 3 If Serial comm is not
105. he DOWN direction May be used to verify proper car direction F LOW SPEED Output becomes active when encoder speed is less than the setting of function 64 May be used to indicate low speed for door pre opening logic G FIELD is UP Output becomes active when motor field current has risen above the threshold value programmed in function 32 or drive is in operation May be used to indicate when the drive Start command will function without delay H SPEED ERROR is LOW Output becomes active when Speed Error is less than function 121 for longer than function 120 seconds May be used to indicate that the drive is correctly following the programmed velocity profile SPEED ERROR is HIGH Output becomes active when Speed Error is greater than function 121 for longer than function 120 in seconds May be used to indicate that the drive is not following the programmed velocity profile This is the opposite logical state of H J ZERO SPEED Output becomes active when encoder speed is below the setting of function 63 in either direction May be used to indicate that deceleration is complete and the brake may be set without any bumps K MOVING Output becomes active when encoder speed is greater than the setting of function 63 in either direction This is the opposite logical state of J L LIFT BRAKE Output K6 becomes active when elevator brake should be lifted Will de energize when the brake should be dropped
106. he drive motor to produce enough torque to pull through the brake This cause for motor current is not the same as that during normal accel decel where a change in velocity command drives the demand for motor current and torque but speed velocity tracking remains on target Therefore the Speed Error detection method will be more effective than using the Current X Time motor overload function to detect this equipment malfunction If it is desired that detection of a sticking brake should cause an automatic shutdown of the drive See the explanation for function parameter settings 99 and 100 Set 99 to 2 seconds Set 100 to 10 or lower as necessary to cause the function to trip off with drive shutdown Fault F410 when the brake does stick but not so sensitive that normal accel or decel causes an F410 shut down Verify by test that empty car down or full payload weight up will not cause nuisance trips If itis desired that a sticking brake be detected but not cause an automatic drive shutdown See the explanation for programmable logic output type H or T using parameter adjustments 120 and 121 Follow the directions for parameters 183 187 to program either function H or T to activate or deactivate a logic output Set 120 for a detection time of 2 seconds Set 121 to 10 or lower as necessary to cause the function to operate when the brake does stick but not so sensitive that normal accel or decel operatio
107. he DATA FCTN key to enter the Data level for function 801 The green LED will light and the error code last modified with function 801 will be in the SCDU display The SCDU displays error code 13 illegal instruction initially STANDARD CONTROL DISPLAY OPERATION the Fault or Error list press the Y key once so the display changes to 113 0 1 U Green ED Lit 3 Use the and keys to select the error code entry in the Disposition List that is about to be changed viewed For example if the disposition for error code 102 Numeric Underflow is to be modified press the key until the SCDU display changes to Red LED Lit This display indicates that the Numeric Underflow error will now be recorded in the Fault List but not in the Error List Pressing the W key once more will change the display to 10 2 0 0 U Green LED Lit 4 Press the ENTER key when the desired error code is displayed on the SCDU The red LED now lights and the SCDU display changes as well to a format of E xF y The E and F are abbreviations for Error and Fault respectively The x and will be either 1 or 0 to indicate which list will record the error For example if the display is E 1F 1 the error is recorded in both lists If the display is E OF 1 the error is recorded in t
108. he fault list but not in the error list If the display is 0 0 neither list records the error In the example above the factory set default disposition for a numeric overflow F 102 is to record the error in the Error List but not in the Fault List In this case the SCDU display is Red LED Lit This is the desired status for the new disposition of the Numeric Underflow error which is to not report it to either the Fault or Error List 6 Press the ENT key when the new disposition code is in the display At this point the green LED will light and the SCDU displays the error code again 102 E T F 0 Red LeD Lit 5 Press either the key repeatedly to change the numbers after the E and F from 1 to 0 and vice versa Starting from no declarations the displays are E 0F 0 E OF 1 E 1F 0 and E 1F 1 For example if the disposition for this error should be changed so that it is NOT recorded in either Green LED Lit The and keys can now be used to select another error code to be modified as in step 3 7 When all changes in the Error Disposition List are finished pressing ENTER key will exit back to the function level 801 Both LED s Off STANDARD CONTROL DISPLAY OPERATION Fault Display Clear The drive stores the first 16 faults that have been re
109. hould be as low as possible to prevent regulator transfer bumps when starting but it must be set high enough to remain engaged during re leveling or to ignore a small analog zero reference offset when using an external analog signal reference Function 150 Binary Progressive Pre Set Speed Select Units logic Max 1 BINARY Min 0 PROGRESSIVE Default 1 BINARY Determines the method for selecting pre set speeds from external relay logic applied to 1 1 11 12 52 53 54 Function 151 through 157 Pre Set Speeds 1 through 7 Units Range 0 0 1900 0 Default 0 0 These function values specify the elevator car speed for each individual pre set speed setting The units must agree with that set for Rated Car Speed in function 17 If feet per minute is used at function 17 then the units for function 151through 157 shall also be feet per minute No value for function 151through 157 should be larger than that for function 17 All values are positive numbers The selected reference speed and direction will be determined by the setting of function 110 115 150 and 24V relay logic inputs It is certainly possible to connect the selection of 58 one or more pre set speed logic input control lines to also activate a different Ramp Rate 2 or 3 See also the Decel Rate Latch function 116 With careful thinking one can obtain many specific combinations of pre set speeds and Ramp Rates with a minimum of re
110. ht For example if a SAVE were performed the display would be Green LED Lit Load Default Function Every parameter in the drive has a factory set default value that is loaded when the drive is powered up for the very first time These default parameters may not be optimal values for the drive when actually running but they will generally allow the drive to function It is possible to reload these default parameters with Function 995 of the SCDU A re load of the defaults would generally be done when the drive is operating erratically and it is suspected that one or more parameters were improperly set CAUTION Use of the LOAD DEFAULTS function will overwrite EVERY parameter currently being used by the drive with the factory set default for each parameter There is no way to restore parameters to their previous value once this function is used Function 995 is used to perform the transfer of data from the default parameter list to the ACTIVE RAM parameter list The process for accessing the Load Defaults Function is as follows 1 Usethe A and keys to select function 995 from the function level The two colored LEDs remain off during this step 99 5 2 Press the DATA FCTN key to enter the Data level for function 995 The green LED Both LEDs Off 42 is now lit to indicate that this function is currently being accessed The SCDU will now
111. ill result Preset Speed Logic Sequence Binary The internal pre set speed selector in binary mode fctn 150 ON uses 3 input lines to select 1 of 8 pre set speeds including zero see Table 11 Binary logic reduces the number of control lines but the logic inputs to select those independent speeds may not be properly de bounced at the sending or receiving end This may allow an unintended speed to be momentarily selected To prevent this from happening the user should consider using 4 pre set speeds including zero selected in a gray scale progressive manner only one switch changes at a time Progressive An alternate method of one at a time control that has more pre set speeds and takes advantage different Ramp Rates R R during operation set 150 Off for Progressive input control see Table 12 Connect A1TB1 10 to A1TB1 54 and A1TB1 51 to A1TB1 12 to automatically activate R R 2 with a 1 Floor Run and R R 3 with Multi Floor runs 1 will be activated for leveling and inspection speed 1 If Decel Rate Latch 116 is ON these rates will be held active during deceleration DRIVE SETUP Example With 150 On 52 51 50 Pre set Use 0 0 0 none Zero Speed select 0 0 1 1 Leveling Speed 0 1 1 3 1 Floor Run Speed 1 1 1 7 Multi floor Run Speed 0 1 0 2 Inspection Speed could also be speed 4 5 or 6 NOTE Always set all other unused pre set speeds to zero Table 11 Binary Input Control Example With
112. in radians per second Function 55 Field Source Volts AC Units VAC Range 0 525 Default 0 This is the single phase AC voltage used to power the Field Rectifier module The factory default value of zero will let the drive automatically select the same value as supplied for the nominal AC voltage as set by function 9 This conforms to factory supplied wiring supplied at AC1 and 2 on the field interface PCB Set this only if an external transformer is used to supply a different voltage to power the motor field circuit set this value to the nominal Vac provided at terminals AC1 and 2 Function 63 U D Bit Pickup Units of rated speed Range 0 01 100 00 Default 0 1 This entry defines the zero speed threshold for detection of motion via encoder measurement It controls the Moving Up Down amp Zero Speed detector output signals and determines when ARB will be turned back ON if function 130 is set to 2 Function 64 Low Speed Threshold Units Range 0 1 100 0 Default 2 0 This entry sets the speed threshold where the At Low Speed indicator will turn ON and OFF This can be used to indicate when the elevator is moving below the door pre opening speed See programmable output function F or M at functions 183 through 187 The adjustment value is percent of rated maximum speed as set by function 17 Hysteresis is 5 of the set value Function 80 Over Speed Test Units LOGIC Rang
113. irectly read and track the status of logic input and output signals at DSD 412 drive terminals This is an easy way to verify the integrity of input and output logic signals to the drive Refer to specific connection diagrams for your application to confirm the definition of how each signal is being used The I O indicator technique as described below will work regardless of whether or not the particular terminals and signals are used by internal software logic or actually wired into your application Function 981 does not work with the Portable Control display Unit Here s how to use this valuable troubleshooting tool 1 Pressthe Up orDown keys and go to F 981 2 Press the DATA KEY The green light should turn ON to indicate that data is being displayed 3 Segments on the local Control Display Unit will light up to indicate active input and output logic actions Vertical segments represent input signals and horizontal segments represent output signals as identified below INPUT LOGIC DATA BITS E STOP THRMST TB1 53 TB1 12 TB1 54 TB3 6 TB3 8 N A N A N A N A TB1 7 TB1 49 1 8 TB1 50 TB1 9 1 51 TB1 10 TB1 52 TB1 11 TB1 40 41 42 TB1 38 39 TB1 36 37 TB1 78 LPR 1 79 1 83 TB1 84 TB3 5 N A N A N A N A OUTPUT LOGIC DATA BITS Figure 23 Monitor Function 99 Maintenance Maintenance Preventive Maintenance WARNING HAZARDOUS V
114. ired One of the SCRs does not conduct current This condition is checked only upon request through the PCU 998 Diagnostics CDU function The optional handheld PCDU will also identify which SCR pair is bad Check for faulty SCR gating leads 915 PARAMETER SETUP FAULT DSD power down is required One of the following parameters is not within the range of the chassis hardware Rated Volts 7 or 9 Rated Current 3 or 50 Corrective action Enter correct parameter data save to NVRAM Reset the drive amp re start 916 FORCING FAULT The prohibit rotation bit was removed with the loop picked up This fault can only occur when using the handheld PCDU 93 DRIVE FAULTS ERROR FAULT CODE PROBABLE CAUSE CORRECTIVE ACTION 917 REVERSE ARMATURE POLARITY DSD power down is required This fault will show up when doing the F998 PCU Diagnostics Test It indicates that the polarity of the Armature Voltage Feedback wires is reversed or missing Check connections on A1TB5 1 and A1TB5 2 of the Armature Interface PCB A2 F909 faults and or very poor drive ride performance may occur if not corrected 919 LINE VOLTAGE SETTING FAULT DSD power down is required This fault is declared if a number is entered for the Rated Line Voltage 9 that is outside the acceptable range of 150 to 525VAC If 0 is entered the rated line voltage defaults to 230 or 460 VAC depending on the line voltage sensed
115. its Logic Range 0 Off 1 On Default 0 Off This function allows the Drive to automatically reset drive faults that caused a shutdown without an external Fault Reset command When turned ON the drive will attempt an automatic fault reset 5 seconds after the fault occurs If successful the drive may then be restarted This feature is made inoperable by setting function 101 to 0 off Note A Fault count total is accumulated One fault count is removed from the total every 20 minutes An accumulation of 5 counted faults will cause fault 411 Maximum Resets Attempted and the need for a manual reset for continued operation Function 102 3 Second Loop Fault Units Logic Range 0 Off 1 On Default 0 Off This function selects the detection time for loop contactor faults These occur when the contactor acknowledge feedback contact fails to open or close according to the commanded state of the contactor coil driver Small contactors should operate within 450 milliseconds and should use the default value 0 or OFF If large contactors are used with large hp drives set this value to ON to yield a 3 second fault detection time Function 104 Serial Gain Switch Units Logic Range 0 Off 1 On Default 1 This function selects the source of the gain switch control to be from local or serial link commands If an analog reference velocity or DRIVE SETUP AND ADJUSTMENT pre set speed selects are
116. ive will perform internal checks The SCDU will display tESt while a self test is being performed 3 If the drive passes the self test then the SCDU will display P UP READY LED will light Abnormal Display Conditions Displays other than those mentioned above may occur The following is a list of abnormal display conditions that may occur and the actions necessary to correct the situation 1 If no digits or LEDs light up then check for proper voltage between the 115 Vac control power lines or for blown 115 Vac control power fuses or for a defective Control Voltage Power Supply in the power cube 2 If horizontal segment s of the SCDU display are lit then one or more phases of the three phase power are missing Measure and verify three phase power input at the drive terminals Check the three phase power fuses see section 27 INSTALLATION describing standard control display unit operation for more detailed information about this test 3 Ifthe FAULT LED lights and a fault code appears on the SCDU then refer to the Fault Error Codes List to see what caused the fault and to find the correct solution A fault code is the letter F followed by a number representing the fault see section describing standard control display unit operation for more detailed information about fault reporting and clearing 4 Ifthe SCDU displays Prot then the initial checks found that the protected non volatile RAM NVRA
117. l be Red LED Lit The operator should then identify which fuses have failed The drive will not operate unless all three line fuses are functional If the SCDU indicates a bad fuse power must be removed from the drive the fuse replaced and power reapplied After the drive has performed all three tests lamp test RAM test and fuse test the SCDU displays one of two final messages If there are any faults present at this time the SCDU will display a Fault code The display will be similar to F STANDARD CONTROL DISPLAY OPERATION Both LEDs Off where the leading F indicates a fault and the 3 digits following the F indicate the fault number If however there are no faults present the SCDU displays the normal power up message P U P Both LEDs Off This P UP display will remain on the SCDU until a key is pressed or a fault occurs After Power Up After the drive has powered up and the SCDU display is showing P UP or a fault number it can be used to enter new parameters monitor drive operation and or perform certain drive diagnostics Every operation that the SCDU can perform is called a function There may be up to 1000 functions defined within the DCU All SCDU functions have at least 2 levels and some functions use 3 levels The two colored LEDs below the lower left corner of the 4 1 2 digi
118. lable from your Magnetek representative Always refer to the order number equipment description and serial number when contacting Magnetek Unpacking Instructions Remove the protective shipping material from around the equipment Remove all packing material Unbolt the equipment from its crate Inspect for loose wiring Make sure that all contact wedges and other shipping devices have been removed Packing Instructions for Reshipment or Storage For long periods of storage equipment should be covered to prevent corrosion and should be placed in a clean dry location If possible equipment should be stored in its original crating Periodic inspection should be made to ensure that the equipment is dry and that no condensation has accumulated The equipment warranty does not cover damage due to improper storage The drive should be packed in its original shipping container if it is required that it be shipped Assistance if required is available from your Magnetek representative Physical Installation The DSD 412 Elevator Drive is air cooled The lowest HP rated units are cooled by convection all other units are equipped with a fan to ensure adequate airflow Select a site for installing the drive that is clean and well 24 ventilated Maintenance will be minimized if the drive is located in a clean atmosphere The standard drive is designed for vertical mounting Attach the drive to a cabinet panel or other vertical
119. lay contacts Note 1 Switch select inputs S0 S4 are 24V logic input signals available on A1TB1 with the following assignments 0 ATTB1 11 S1 1 1 53 2 1 1 12 3 A1 1 54 4 A1TB1 52 Note 2 For S0 54 18 24VDC ON 1 lt 5VDC OFF 0 Note 3 Connecting A1TB1 10 to A1TB1 11 will automatically select Ramp 3 with selection of pre set speed 1 BINARY Preset Speed Operation 150 1 ON 4 53 182 51 50 SPD ADJ nn x x 0 0 0 ZERO NONE x x 0 0 1 1 151 x x 0 1 0 2 152 x x 0 1 1 3 153 x x 1 0 0 4 154 X X 1 0 1 5 155 X X 1 1 0 6 156 X X 1 1 1 7 157 Table 5 Binary Preset Speed Select PROGRESSIVE Preset Speeds 4150 0 OFF 54 53 52 51 50 SPD ADJ nn 0 0 0 0 0 ZERO NONE 0 0 0 0 1 1 151 0 0 0 1 0 2 152 0 0 1 1 0 3 153 0 1 1 1 0 4 154 1 1 1 1 0 5 155 Table 6 Progressive Preset Speed Operation Note 4 When Progressive Speed Select mode is used any combination of 50 54 not shown in Table will result in zero speed being selected Note 5 When Reference Mode Select function 110 is set for Analog or Serial velocity reference control inputs 50 54 have no affect Function 170 Accel 1 Time Units SEC Range 0 50 15 0 Default 5 00 Total acceleration time in seconds for S curve ramp 1 to occur from zero speed to rat
120. lay is 2 rows of 16 characters Therefore an update of an entire screen would require several packets Byte 11 This byte contains the calculated checksum of the data within this packet It is the modulo 256 sum of bytes 1 through byte 10 inclusive 82 Using Anti Rollback ARB Elevator rollback occurs when an elevator motor drive is started and the brake is released but the hoist motor has not yet developed enough torque to prevent gravity from moving the car The car may move up or down depending on the overall balance of equipment and payload Velocity regulators normally used for speed regulation will eventually detect unwanted movement and react to halt the car But there will be a position error accumulated during that process that can represent many inches of unwanted car movement relative to the landing This effect is most noticeable with low friction gear less elevators It may be totally masked by the friction of an elevator driven through worm gears Rollback by itself does not pose any hazards but it does give an uneasy out of control feeling to passengers In many installations brake release timing is adjusted so that the brake is released just as the car begins to accelerate toward the next landing to mask the rollback effect This often results in jerky starts as the brake linings release The correct countermeasure is to weigh the car just as the doors close to determine the degree of gravity unbalance then pre tor
121. lightest wobble of the encoder shaft due to misalignment can cause once per revolution torque pulsation that have the potential of exciting natural rope resonance frequencies Non concentric Input ce EE Angular Misalignment End Float Figure 5 Common Problems in Encoder Mounting The Magnetek recommendation for mounting the encoder used for motor speed feedback is to direct connect it to the motor shaft usually to the end opposite the drive end Normally a stub shaft is mounted in the end of the motor shaft The stub shaft must be absolutely concentric share the same center with the motor shaft and have no angular misalignment The encoder is normally face mounted to a bracket that is mounted on the motor A standard NEMA 56 C face adapter bracket may be used or a special fabricated bracket may be designed and used The encoder should be mounted on the bracket and positioned so that the encoder shaft and the stub shaft are concentric and have no angular misalignment or run out The coupling should have electrical insulation to isolate the motor shaft from that of the encoder The body of the encoder should be electrically insulated from the motor frame An alternate method of mounting which has been used in the elevator industry is to drive the encoder with a rubber wheel that runs on the brake surface of the sheave This approach may be satisfactory for many applications but it can introduce ins
122. like inspection speed for initial verification Run the elevator up and down repeatedly between the same two landings while monitoring car speed via function 600 on the DSD 412 local display The objective is to have the car speed accelerate right up to the desired speed so look for speed overshoot or undershoot as the car reaches set speed If there is speed overshoot INCREASE the setting for Per Unit Inertia 41 in proportion to the amount of overshoot If the speed ramps up as expected but slowly creeps up to the final desired speed undershoot DECREASE the setting for Per Unit Inertia Repeat the above at higher set speeds until the car will accelerate up to rated top speed or decelerate back down to zero speed without over under shoot Ideally the Per Unit Inertia should be set with a balanced carload as this represents a typical payload If initial tests are made with an empty car increase the setting found with the above method by 10 to estimate the additional effect of passenger payload Save this setting using the DSD 412 function 994 Setting Low Speed Bandwidth 40 The setting of Speed Bandwidth will affect the ability to accurately track the velocity reference with changes in payload mass and changes in rope balance throughout the length of the hoistway Increase the Bandwidth setting for more consistent tracking Note that E Reg will always have a constant tracking delay during acceleration and decelerati
123. lling the Power Conversion Unit PCU and another for speed regulation and higher level functions called the Drive Control Unit DCU These two circuits communicate primarily through a Dual Port Random Access Memory DPRAM IC integrated circuit device 21 INTRODUCTION Drive Control Unit The major element of the DCU is a 16 32 bit Motorola 68000 microprocessor Random Access Memory RAM provides memory space to store values that are maintained only while power is on Non Volatile Random Access Memory NVRAM maintains drive control parameters for the DCU when the power is off Two EPROM s Electrically Programmable Read Only Memory devices U39 amp U40 contain the specific drive program instructions for the DCU microprocessor Power Conversion Unit Control The major element of the PCU control circuit is a 16 bit Intel 80C196 microprocessor Again RAM and EPROM devices U13 amp U14 provide memory space and computer instructions for the PCU Any PCU parameters that need to be maintained while power is off are kept in NVRAM of the DCU and passed through the DPRAM Local I O In an elevator application the Local I O Input Output allow the drive to have inputs and outputs I O such as RUN STOP Encoder Feedback Analog Reference Input Fault condition relay logic output etc connected directly to the drive or passing through a serial communications device Connection to the Local I O is made via A1TB1 and
124. log Signal Ground Noise MAGNETEK CAR DSD 412 Twisted amp Shielded Be PRIME 1 RefOut Differential Input RefOut NC Common at PLC end GND Circuit Common TB11 GND Vnoise Proper connections Noise current does not flow through signal wires or shield Common mode voltage noise is rejected at differential reciever Figure 20 Analog Signal Ground Noise Serial Link Connections 5V DB 9 5V J2 RJ 12 RS 232 1 2 3 TXD 4 RXD 5 6 CIRCUIT COMMON CIRCUIT COMMON Figure 21 Serial Link Connections 79 DRIVE SETUP Serial Communication Specification See Function 110 to enable this feature The serial communication link between a host and the DSD 412 consists of two messages There will be a Demand Velocity Pre Torque Command sent from the host to the DSD 412 every 15 MS There will be a Demand Velocity Response message sent from the DSD 412 to the host every 45 MS After power up the drive will wait 10 seconds for the first Drive Velocity Command DC message to be received from the car controller If this time expires a 20 SEC COMM FLT F117 will be declared Once communications has been established a valid DC message must be received at least in 150 MS intervals If this time window expires a 150 MS COMM FLT F118 will be declared Frame format 10 bits N81 19 2K baud RS232 may be used with the 46S02975 03xx Drive Control PCB at connector J2
125. ly mean that the power supply is faulty as the fuse also protects a transient surge suppressor contained within External surges on the 115VAC control voltage power source can cause this fuse to blow Testing and Replacement of Power Semiconductors and Snubber Components If SCRs are suspect test for short circuits before disassembly to help locate the problem Refer to specific instructions in this manual for the drive ampere size Perform the suggested ohmmeter tests to verify that there are no direct short circuits Then perform the PCU DIAGNOSTICS 998 These tests will perform shorted and open SCR tests to help indicate which SCRs need replacement Several different DSD 412 power circuit configurations exist in order to handle rated currents from 25 to 1350 amperes Refer to the proper sub section in this manual according to rated drive current as listed on the nameplate for specific service information for the individual power conversion units Testing and Replacement of the Motor Field Control Module and PCB Components of the DSD 412 for control of motor field consist of the A3 PCB and associated SCR Rectifier module Q7 located under the PCB Input power is single phase 107 MAINTENANCE voltage supplied to A3TB1 terminals AC1 and AC2 Motor field current DC amperes are measured by a current transducer CT located on the PCB Connecting the F1 field wire to TB4 selects the full scale current range Switch A3S1
126. mA AT TISVAC 38 ENERGIZED OR 50 67 3 2 30VDC 59 2 k2 DE ENERGIZED ON t ALARMS SEE TECH 57 4 39 gt MANUAL FUNCTION 51 67 5 36 gt 99 3 K3 37 PROGRAMMABLE FUNCTION OUTPUTS REFER TO F 183 ar ges 187 COLLECTOR OUTPUTS RATED 500 AT 24VDC go _ e4v ge ANALOG OUTPUT 0 FoS NODE 33 0 45 C Pae ANALOG DUTPUT 1 n ro E 33 146 en 1 1 z NODE r 247 CHAN X Li Ts 2 roto FPF 47 PN SHIELD it fo 2 COMM J1 DB9 SEE CONNECTIO RS422 TBH 1 GND DATA FLOW Figure 8 Typical Serial Signal Wiring 31 INTERCONNECT DRAWING NOTES 1 ITEMS NOT SUPPLIED BY MAGNETEK ARE INDICATED WITH AN ASTERISK OR 2 THE DC MOTOR CONNECTIONS SHOWN IS FOR CCW ROTATION FACING THE COMMUTATOR END TO REVERSE ROTATION INTERCHANGE Al AND A2 AT THE MOTOR DO NOT CONNECT SERIES FIELD IF SUPPLIED WITH MOTOR 3 THE DRIVE IS PREWIRED TO HAVE THE AC SUPPLIED TO THE FIELD RECTIFIER DERIVED FROM 11 AND 12 F A DIFFERENT VOLTAGE IS REQUIRED MOVE THE ORIGINAL WIRES FROM AC1 AND AC2 TO L1A AND L2A THE ALTERNATE SUPPLY SHOULD THEN BE BROUGHT INTO AND AC2 THIS CONNECTION IS PHASE SENSITIVE SEE FIG 2 1a DETAIL A 4 ITEMS MARKED ONLY APPLY WHEN THE INTERNAL PRESET SPEED OPTION IS USED 5 ATTACH TO BUILDING GROUND 6 INSTALL JU
127. mature current is circulated through the armature circuit during parts of the PCU Parameter Measurement function The PCU will reduce the field current to zero on motors with a shunt field in order to minimize motor rotation If the PCU detects significant motor voltage during the test the PCU parameter measurement function will abort Ripple Filter Consideration It is important to note that when applying a LRC output filter Ripple Filter the drive performance will be affected For this reason it is necessary to run the SELF TUNE test with the output configuration that will be used For example if the filter is used with the capacitor fuse installed then the SELF TUNE test must also be run with the filter fuse installed If the capacitors are not needed then the fuse should be pulled and the SELF TUNE test should be run with the fuse pulled The process for accessing the PCU PARAMETER MEASUREMENT function is as follows 1 Usethe A and keys to select function 997 from the function level The two colored LEDs remain off during this step 9 9 7 Both LEDs Off 2 Press the DATA FCTN key to enter the Data level for Function 997 The green LED is now lit to indicate that this function is currently being accessed The SCDU displays the word Prot if the NV RAM PROTECTION switch is in the position that will not allow any updates to the NVRAM 43 P r o 1 If the Pr
128. most cases the signal profile will be adjusted by the car controller for precise landing positioning The velocity reference passes directly to the E Reg closed loop velocity controller except for an internal rate limiter function 21 to buffer any unexpected electrical noise Start and Stop commands are via 24VDC logic inputs The analog velocity reference signal may be adjusted using function 82 Gain or function 86 Bias Internal Preset Speed amp Profile Generator The elevator car controller provides 24VDC logic input commands to select one of 7 pre determined running speeds The DSD 412 drive generates a smooth S Curve acceleration profile to transition between speed selections Either of three separately adjustable ramp times may be selected The direction of travel may be determined by either a single up dn or dual Run Up Run Dn logic commands There are provisions for allowing or disallowing non stop direction reversals The internal pre set speed operating mode is selected by setting 110 to 2 The speed sensitivity of pre set speeds is altered by 82 Set 82 to 1 00 for proper calibration Serial Link Follower The elevator car controller provides the equivalent of an analog reference command over a digital serial link The drive retums operating status conditions and messages Primary Start and Stop commands are 24VDC logic for redundant safety This operating mode is selected by setting 110 to 3 The speed
129. motor 115VAC control power from a separate source is used to power the low voltage power supply cooling fans relay and contactor logic Three phase input power is applied through the AC line fuses to twin 6 SCR power bridges for forward and reverse control The PCU microprocessor controls armature current based on a reference received from the Drive Control Unit microprocessor Output from the PCU microprocessor is sent to the Armature Interface PCB which produces the gating signals for power SCRs The SCR bridge output is an adjustable DC voltage which is applied to the motor armature circuit Power circuit AC and DC measurement signals are routed to voltage dividers on the Armature Interface PCB and scaled values are sent to the PCU microprocessor Armature current is also measured and the feedback signal is routed through the Armature Interface PCB to the PCU microprocessor An over current trip function monitors this signal to initiate an instantaneous static trip IST in the event of excessive output current Single phase power is also applied through the AC line fuses to the Field Rectifier Module SCR gating signals from the PCU microprocessor control the field rectifier SCRs A separate current measuring device is used to monitor the DC current flowing to the motor field Additional connections allow for a separate step up or step down transformer to be used to power the motor 20 field rectifier from voltage mains dif
130. n RS232 devices The optional PCDU plugs into this connector J1 and J2 are mutually exclusive J11 20 Pin Header Provides power supply voltages and control signals to the Drive Control PCB from the DSD 412 Power Supply PCB J13 10 Pin Header Provides power supply and board sensing connections to the 050401 Signal Interface PCB A3 This cable is the same as that used to connect the standard DSD 412 field Interface PCB J14 40 Pin Header Provides control and feedback signal connections to the Armature Interface PCB J31 10 Pin Header Connects TB1 logic signals to Signal Interface PCB A3 J32 4 Pin Header Connects analog output signals from TB1 to Signal Interface PCB A3 J33 10 Pin Header Connects J13 to Signal Interface PCB A3 Table 14 Connector Definitions 101 MAINTENANCE Bil i 15 Figure 24 Connector Locations 102 MAINTENANCE 1 TP2 4 TPS TP TPS TPS 10 11 TP12 TP13 F mt T p TS 22 7 TP23 4 24 od 0 TP30 Hf TP25 Pop L Sele EIIII In 3 mm SN T ati i i Lr U 1 TT y TP37 2363 TP38 TI Figure 25 Test Point Locations MAINTENANCE
131. n Switch Speed Function 105 Sets the speed where regulator gain will switch bandwidths Below this speed the setting of 40 will be used Above this speed the effective setting of Bandwidth 39 will be used Units are in Per Unit of rated speed where 1 00 represents 100 of rated speed The default setting of 1 1pu means that regulator bandwidth will never switch and therefore always be controlled by 40 Gain Reduce Function 108 The Gain Reduce multiplier function has been replaced by two separate settings 39 amp 40 Tach Rate Gain Function 107 Sets the amount of derivative speed feedback from the encoder Units are in with range from 0 to 30 This can help stabilize velocity tracking oscillation caused by rope stretch in tall hoist ways Not an effective countermeasure against ordinary rope resonance Notch Filter Function 190 amp 191 An adjustable frequency notch filter is provided to help suppress regulator responses to a specific frequency This is an 68 effective countermeasure to avoid amplification of typical 9 14 Hz rope resonance See Table 8 Tuning E REG The basic concept and purpose of E Reg is to have a relatively low closed encoder loop bandwidth to prevent amplification of natural rope oscillations but to feed changes in the velocity reference directly forward to control motor torque with a relatively high gain This then forces the inertia of the elevator to follow the reference sp
132. n causes false detections Verify by test that empty car down or full payload weight up will not cause nuisance trips DRIVE SETUP Start Stop Timing A typical elevator run sequence is shown in Figure 19 Elevator Start Stop Timing A descriptive explanation is given below Start Sequence Mode 2 internal pre set speeds 1 Close Drive amp Field Enable Sets field current reference to Full Field enables drive to operate This contact must be held closed during entire elevator run including armature current ramp down Opening of this contact will disable the drive and cause the loop contactor to be dropped immediately 2 Close Safety Chain circuit Must be closed for drive to start Must remain closed during entire elevator run Otherwise an F405 fault will result 3 Select desired direction and speed May be done before or after drive is told to Run 4 Close Hardware Run or Run Up or Run Down contact Causes LPR to pick when field current is greater than setting 32 LPR picks contactor which closes Loop Confirm Drive will begin running by pre loading the speed error integrator with the available pre torque signal if enabled at Function 114 Logic Output Selection C Run Engaged will become energized to indicate that the drive has control of motor speed Speed will begin to accelerate toward desired speed if not set at zero If contactor fails to pick F402 If motor armature circuit is n
133. n the DSD 412 drive is told to cease operation by removal of the Run logic command and after Brake Drop time if that function is engaged the armature current reference ramps down to zero at a constant rate controlled by function 85 When armature current ramp down is complete the contactor will be opened In the event that the contactor opens unexpectedly as reported by the feedback contact at ATTB1 7 or in the event of a severe drive fault there will be no timed delay for current ramp down DRIVE SETUP AND ADJUSTMENT Electronic Motor Over Load An electronic motor over load function is provided to take the place of heater type power components Motor armature current is continuously monitored and the heating effect is calculated over time A motor overload trip will not automatically stop the drive but is an important alarm signal to elevator car controller to help prevent equipment damage External Auto Fault Reset An external Fault Reset command signal from the car controller may be applied to logic input A1TB1 49 Or an automatic Fault Reset will occur 5 seconds after a drive fault occurs if enabled by function 101 This will enable the car controller to quickly recover from a re settable fault One Fault will be subtracted from a fault count accumulation every 20 minutes The maximum number of Auto Resets that can be accumulated is 5 The Auto Reset function will then require manual intervention Over Speed Test
134. n will become operative only when the armature voltage is above 50 Vdc This numeric input adjusts the tach loss sensing function ability to ignore motor IR drop 50 Function 15 Tach Sense Units Range 0 0 100 0 Default 5 0 This entry sets the percentage of tach feedback below which a tach loss will be declared But this alone will not result in a tach loss fault being declared Thus a tach loss will be declared when the per unit armature voltage is above the level that is the sum of function 14 VOLT SENSE 96 and function 15 TACH SENSE and the per unit tach feedback is less than the value entered for TACH SENSE 96 For example for default values of 25 for function 14 and 5 for function15 a Tach Loss will be declared when motor voltage is above 3096 25 5 and the encoder speed feedback indicates less than 596 speed Function 16 Encoder Motor Ratio Units Range 1 000 19 000 Default 1 000 This is the ratio of encoder RPM to motor RPM If friction wheel drive is utilized for the encoder the motor sheave diameter divided by the tach wheel diameter should be entered here This value will multiply the encoder pulses per revolution to obtain proper motor rpm speed feedback information and regulation If the encoder is direct coupled to the motor shaft this function must be set to a value of 1 0 Function 17 Rated Car Speed Units Range 1 0 1 900 0 Default 400 0 This entry se
135. ns on the board 100 Repair and Replacement Procedures Replacement parts are listed in Section 6 Either the common name or reference designator of a particular part may be used to locate the item in the Recommended Spare Parts Table to find a replacement part number Be sure to use the proper table corresponding to the ampere rating on the drive nameplate Printed Circuit Boards IMPORTANT When replacing any printed circuit board PCB or any integrated circuit IC in the DSD drive proper Electro static Discharge ESD procedure MUST be followed Repair of printed circuit boards requires special techniques and test equipment For this reason field repair is not authorized and replacement of a suspect board is recommended Defective or questionable printed circuit boards should be returned to MagneTek for repair and test The printed circuit board should be ESD protected then individually protected with an inch thickness of soft wrapping material before it is packed in a suitable carton MagneTek assumes no responsibility for printed circuit boards returned without proper return tags and forms Contact your Magnetek sales representative for proper return tags and forms MAINTENANCE CONNECTOR TYPE FUNCTION J1 DB 9 Provides interface to connections for external RS422 serial link controls J1 and J2 are mutually exclusive J2 RJ 12 Phone jack Provides interface connection for external plug 6 pi
136. ntil they snap then remove the cover 2 Mark each cable and wire to ensure proper reconnection before disconnecting them 3 Disconnect all cables and wires from the Drive Control PCB Remove nine screws holding the Drive Control PCB to the swing out door chassis from the front and remove the Drive Control PCB from the power cube 4 If there is an optional circuit board attached to the back of the Drive Control PCB disconnect the Local I O cable from J12 on the Drive Control PCB Then remove the mounting screws which secure the Local I O PCB to the back of the Drive Control PCB Re attach the same Local I O PCB to the replacement Drive Control PCB using the same hardware in reverse order Re attach the J12 cable 5 Mount the new Drive Control PCB into the power cube by reversing procedure in steps 1 through 3 Be sure to re use the small diameter flat washers under the screw heads on the Drive Control PCB to maintain proper electrical clearances 6 Remove integrated circuits ICs U13 U14 U39 U40 as appropriate from the defective Drive Control PCB Install into the same positions on the new board Ensure that polarity notch on IC is aligned with the silk screen notch on the board Each IC is marked with the proper U number in the bottom left hand corner of its label 7 Perform Start Up Procedure IC Replacement IMPORTANT When replacing any printed circuit board PCB or any integrated circuit IC in
137. ntrol Feature 33 BRAKE PICK INTERCONNECT DRAWING 24V 54 53 52 51 50 PROGRESSIVELY SCANNED RELAY LOGIC Y 54 24V 48 oS 54 VA 3 2 12 51 53 50 11 USING DIODES 1N4003 OR TO YIELD PROGRESSIVE INPUTS WITH SINGLE RELAY CLOSURES ALTERNATE METHODS TO ACHIEVE PROGRESSIVE SPEED SELECT LOGIC Figure 11 Speed Select Logic Input Wiring 34 52 54 12 5 53 8 1 STANDARD CONTROL DISPLAY OPERATION Standard Control Display Unit Operation General The Standard Control Display Unit SCDU is used to change and or monitor various drive dependent operational set points and perform diagnostics for the Magnetek DSD Elevator Drive The SCDU is located in the upper right corner of the Drive Control PCB and is accessible through the power cube cover This Control Display Unit is present on every Magnetek DSD 412 Elevator Drive The SCDU consists of a 4 button keypad a 4 1 2 digit numeric LED display red and green colored LEDs an NVRAM PROTECT switch marked NV RAM PROTECTION on the power cube cover and a red LED that shows the status of the NVRAM PROTECT switch Start Up Operation When power is first applied to the drive all of the segments on the 4 1 2 digit display will turn on briefly in order to show that all are 1 8 6 6 56
138. odes to help pinpoint the cause of problems when things go wrong during commissioning See the appropriate sections for explanations of Anti RollBack Brake Control Drive Standby Power Reduction and operation with a Uni Polar Analog reference Ramp rates 3 are now activated by external logic command at A1TB1 10 Motor Field Current Control Motor field current is held at Stand By amps function 53 when the elevator is idle When the Drive Enable command is given field current will rise as fast as possible to the level programmed in function 50 The drive will not allow a drive start to occur until motor field current rises above the threshold level set at function 32 At high speed the motor field current will automatically weaken to the level set at function 49 If the field current feedback fails to track the field current reference by more than 5 for 5 seconds Fault 413 will be declared The universal motor field control module supplied with DSD 412 can operate motor fields from 0 2 through 40 0 ADC There are connection provisions for using a user supplied voltage source Analog Velocity Follower The elevator car controller provides an analog velocity reference to the drive at A1TB1 63 and A1TB1 68 The signal may be bi polar 10 VDC to indicate speed and travel direction or a positive only unipolar signal with the direction of travel selected by logic commands See descriptions of function 110 and function 115 In
139. on See Figure 4 4 1 Thisis a normal result of the characteristic that avoids speed overshoot typical of ordinary PI type speed regulators Increasing the Bandwidth setting will tighten up the tracking delay However be aware that it may also increase the likelihood of amplifying encoder vibration and rope resonance interference A setting of 5 0 to 8 0 is normal for most elevators The consistent tracking delay of E Reg can easily be accommodated in the elevator landing position controls by simply making the car slow down start 1 40 seconds earlier in the cycle to compensate for the tracking delay Setting the Speed Bandwidth to a high value in order to compensate for a poor Per Unit Inertia setting is an improper adjustment There may be some minor interaction between the Bandwidth and Stiffness adjustments DRIVE SETUP Setting Stiffness 42 Increasing the Stiffness setting will increase proportional speed error gain This allows the regulator to respond faster to measured speed error whether it be caused by reference or encoder speed changes Increase this setting to overcome frictional starting lags at low speed during elevator re leveling particularly with worm gear friction elevators Other gains in the regulator are automatically re adjusted to maintain the same bandwidth as set by the Speed Bandwidth adjustment However be aware that increasing the Stiffness setting will also cause more amplification of rope resonant distur
140. on 151 through 157 preset speeds and function 170 through 181 accel decel jerk rates See also function 115 for direction control and function 150 for speed selects Setting this value to 3 enables serial link control of the velocity reference and external ramp slew limits rates of function 21 Setting this value to 4 enables a uni polar analog reference to be used with external direction logic commands External ramp slew limit rates of 21 will also be used Function 111 Arched Travel Disable Jerk Abort Units Logic Range 0 Off 1 On Default 1 On Previously named Jerk Abort Enable When ON changing the speed reference to a value less than or equal the actual speed will cause the S Curve reference generator to immediately stop acceleration and begin to decel if appropriate When OFF changing the reference to a lower speed will cause a jerk out of any existing accel and to a decel sequence If done while accelerating Arched Travel will be the result Function 112 Encoder Feedback Enable Units NUM Range 0 Off 1 On Default 1 On Setting this value to 0 off enables the Armature Voltage Feedback Mode to operate This parameter must be set to 1 for normal operation of the drive When in this mode the encoder feedback monitor function 601 will still be active to allow for troubleshooting however this signal will not affect speed regulation This mode is intended for main
141. or the main contactor motor thermostat and fans Armature Interface PCB A2 Provides the interface circuitry between the digital firing pulses generated by the Drive Control PCB and the high current SCR gating pulses controlling the armature current It also provides feedback signals from the power section to the Drive Control PCB A cube ID circuit board is attached to the Armature Interface PCB to identify the ampere capacity of the SCR power bridge to the PCU processor SCR s The drive uses different selections of doubler packs or individual hockey puck SCRs according to the horsepower ranges specified below MOTOR ARMATURE SCR CURRENT TYPE 25A 195 A Doubler 300 1285 A Hockey Puck Field Interface PCB A3 Provides the interface circuitry between the digital firing pulses generated by the Drive Control PCB and transformer isolated SCR gating pulses controlling the field current It also contains the field feedback circuitry and the field SCR snubber circuit Cell snubber PCB A5 Is provided for SCR protection These are selected to work efficiently with utility line impedance between 2 and 8 percent including that of the power input transformer Drive Control PCB A1 Mounted on the hinged door this board provides the microprocessors memory and support circuits needed to control drive operation Two control circuits are provided on this PCB One for contro
142. orresponds to almost all linear acceleration A percent S of 100 will make the S curve 1 smooth with no linear acceleration portion Effective only when internal pre set speeds are used Function 176 Decel 1 S Units Range 0 1 100 0 Default 25 0 The percent of time that will be spent in the controlled jerk or S portion of the timed ramp curve during ramped deceleration 1 A percent S of 0 1 corresponds to almost all linear deceleration A percent S of 100 will make the S curve 1 smooth but with no linear deceleration portion Effective only when internal pre set speeds are used Function 177 Decel 2 S Units SEC Range 0 1 100 0 Default 25 0 The percent of time that will be spent in the controlled jerk or S portion of the timed ramp curve during ramped deceleration 2 A percent S of 0 1 corresponds to almost all linear deceleration A percent S of 100 will make the S curve 2 smooth with no linear deceleration portion Effective only when internal pre set speeds are used Function 178 Accel 3 Time Units SEC Range 0 50 15 00 Default 5 00 Total acceleration time in seconds for S curve ramp 3 to occur from zero speed to rated DRIVE SETUP AND ADJUSTMENT elevator speed Effective only when logic input A1TB1 10 is active Selecting this ramp rate will override Rates 1 or 2 Function 179 Decel 3 Time Units SEC Range 0 50 15 00 Default 5 00 Total deceleration time
143. ot message appears press the DATA FCTN key to return to the Function level move the NVRAM PROTECTION switch to the OFF position and press the DATA FCTN key again The SCDU will jump to step 3 when the NVRAM PROTECTION switch is in the correct position upon entering this function 3 The SCDU displays the word Entr to prompt the user to press the ENTER key as further confirmation that the PCU parameter measurement function is about to be performed E n t r UB Green LED Lit 4 Press the ENTER key to actually start the PCU Parameter Measurement function The PCU will not begin the measurement routine if a SEVERE PCU FAULT exists The PCU will declare a SEVERE FAULT under several conditions including an IST fault power supply failure line sync loss low line or DCU failure SEVERE FAULT exists when the PCU starts the parameter measurements the SCDU displays S F L t UB Green LED Lit Severe faults can only be cleared by pressing the reset button on the Drive Control PCB by cycling power to the drive or by replacing the bad component if applicable The SCDU displays the word tESt while it is performing the parameter measurements and there were no SEVERE FAULTS when the ENTER key was pressed STANDARD CONTROL DISPLAY OPERATION t E St Green LED Lit 5 Press the DATA FCTN key to exit the PCU parameter measurement ro
144. ot closed before Loop Confirm closes an F98 or F901 may occur 5 Release brake Timing of actual brake release must be coordinated with starting the drive and or changing the target speed The drive must be running and be either pre torqued or starting to accelerate or have ARB engaged to prevent rollback 6 Anew target speed and or direction may be selected before or after the drive is started When speed rises above the setting of 64 the Low Speed logic indicator will turn off Output function F 73 DRIVE SETUP SAFETY CHAIN DRIVE amp FIELD ENABLE HARDWARE RUN LPR CONTACTOR CONTACTOR ACK SPEED DIRECTION amp RAMP CMDS RUN ENGAGED ZERO SPEED MOTOR FIELD CURRENT MOTOR ARMATURE CURRENT ELEVATOR VELOCITY ELEVATOR BRAKE MUST REMAIN VALID DURING ENTIRE RUN AS REQ D DURING RUN FIELD E PRE TORQUE WEAKENING IF REQ D AS REQ D DURING RUN ACCEL DECEL RAMP DOWN d 74 Figure 19 Elevator Start Stop Timing RUN SPEED ZERO SPEED FULL STAND BY OTHER ZERO OTHER ZERO RELEASED SET Stop Sequence 1 Select leveling or zero speed reference Will cause start of deceleration to new target speed 2 When speed becomes less than the setting of 64 th
145. otch or its ability to attenuate Use the filter as follows Determine the approximate frequency of the oscillations or rope ringing Use Table 8 191 to set a center frequency value slightly higher than that of the observed disturbance The default value of 7 12 Hz will be sufficient in many cases Increase the value of 190 to suppress the tendency to respond or amplify rope resonance CAUTION Be aware that the ability of the drive to follow the speed commanded by the car controller is altered by these adjustments If the frequency of the filter is set too low or the notch depth is set too deep there may be interference problems associated with operating the closed loop velocity regulator or position control loops within the Car Controller Typical symptoms would include position overshoot of floor landings and potentially repetitive speed oscillations or speed hunting If these symptoms occur back off on the Notch Depth setting 190 and or reduce the setting of 191 Notch Period increasing the notch center frequency to avoid interference Motor Overload Motor armature current is sensed and mathematically integrated over time to detect potential over heating caused by a dragging brake shoe or other repeated abuse beyond ratings of the equipment The calculation formula used for the electronic motor overload is t 2 i Where t Calculated time to trip in seconds i Measured Per Unit motor
146. ported to the Fault List Function 0 Once the Fault List is filled with 16 faults it will not accept any more entries The data in this buffer is not retained when the power is lost Each time a fault condition occurs and its entry in the Disposition List is set to record also in the Fault List the new fault is placed on the list provided the list is not full Function 0 Reserved for viewing the Fault List The steps to view the Fault List are as follows 1 Use the A and keys to select Function 0 The two colored LEDs remain off during this step Note that simply pressing the key once can access this function if the SCDU display is P UP 2 Press the DATA FCTN key to enter the Data level for this function The green LED is now lit to indicate that the fault codes currently in the Fault List are being displayed The very first display at this point is the word ALL A L L The SCDU display always displays the fault code that will be removed if the ENTER key is pressed If the ENTER key is pressed at this time every fault currently in the Fault List will be removed from the list Each fault in the Fault List can be shown on the SCDU display and optionally cleared IMPORTANT The process of clearing a fault from the Fault List DOES NOT actually clear the condition that caused the fault To view the first fault on the list press the key If there is a Numeric Underflow
147. possible to have the internal SCR Power Bridge assembly as a spare part for replacement in the field Field repair of individual SCR parts is possible but requires the aid of alignment jigs proper tools and considerable patience for proper success Whole drives or SCR Power Bridge assemblies may be returned to the factory for repair Snubber Circuit Snubber capacitors are mounted on a PCB attached to the underside of SCR heat sinks To service these components the entire SCR heat sink power bridge assembly must be removed from the chassis for access Follow the steps below for power bridge removal The snubber resistors are the large tubular devices located behind the AC line fuses F1 F3 These can be replaced without removal of the power bridge assembly SCR Testing Running PCU Diagnostics 998 should be the first test to determine if an SCR is faulty If this test indicates a failure or if the drive has blown fuses continue the procedure below to verify the need for repairs The Heat Sink Assembly is composed of three Phase Assemblies each containing four hockey puck type SCRs with heat sinks and clamps Three phase assemblies are combined with upper and lower DC buss bars and front and back PCBs into a unified power bridge assembly then placed into the drive chassis A hockey puck packaged SCR must be clamped at high pressure in order to operate or to be properly tested with an ohmmeter Ohmmeter testing of the SCRs
148. pplied to LPR from the power supply at TB3 5 Will be momentary until F900 occurs If not there suspect an internal relay failure Replace A4 Power Supply PCB 91 DRIVE FAULTS ERROR FAULT CODE PROBABLE CAUSE CORRECTIVE ACTION 901 PCU IST FAULT Current flow in excess of 300 of rated armature current detected Check for 1 Ground fault or intermittent connection in motor armature circuit 2 Faulty current measuring module 3 Poor current regulator tuning 902 POWER SUPPLY FAULT CPU Reset Required The Low Voltage Power Supply A4 output has dropped below 6096 of the rated voltage This fault will shutdown the drive Possible causes Loss of 115VAC power Short circuits in 5V 15V or 24V circuits possibly external to the drive Failed Power Supply Blown fuse internal to power supply 903 LINE SYNCRONIZATION FAULT CPU Reset Required The Phase Locked Loop has lost synchronization with the 3 Phase AC input power supply When this occurs the Severe Fault flag is set and the current reference is forced to zero Generally this is caused by AC input power problems and is self correcting This fault will shutdown the Drive This fault will often occur with a F904 fault 904 LOW LINE VOLTAGE FAULT The AC input power has dropped below 80 of the Nominal AC Line Voltage 9 for 3 consecutive cycles or lower than 50 for one cycle When this occurs the Severe Fault flag is set
149. que the motor so that when the brake is released all forces are balanced This method is very effective but does require expensive calibrated load weighing equipment The purpose of the Magnetek Anti rollback feature is to help prevent rollback on elevators that do not use load weighing or do not use the motor pre torque capability provided by the Magnetek drive It uses a double integrator type 2 regulator when operating at zero speed to hold the elevator car at an average speed of zero and to regulate a constant position as the brake is released When the velocity reference leaves zero speed to accelerate the car toward the next landing the active velocity regulator is switched to be E Reg to precisely track follow the velocity reference profile Be aware that this anti rollback feature works from encoder tachometer signals So there must and will be some movement in order for the feature to function but the position error generated by elevator movement will recover The 83 DRIVE SETUP bandwidth gain of the system will determine how much movement will occur Several new operating options and adjustments are provided Refer to the individual descriptions for Drive Functions 130 132 and 63 Set Up And Tuning Of Anti Rollback ARB 1 The ARB function uses adjustment settings 41 Per Unit Inertia and 42 speed regulator Stiffness These settings and others are critical for good performance of the E Reg velocity
150. r under shoot Figure 15 E REG Tracking Profiles 1 RATED SPEED Velocity Reference Speed Feedback with Per Unit Inertia 41 set too low Velocity Overshoot 0 ZERO SPEED ACCEL TIME TIME E Reg Velocity Tracking Per Unit Inertia Setting TOO LOW Velocity Over Shoot Figure 16 E REG Tracking Profiles 2 70 Velocity Reference 0 ZERO SPEED E B Speed Feedback with DRIVE SETUP RATED SPEED Per Unit Inertia 41 set too high Velocity Undershoot ACCEL TIME E Reg Velocity Tracking Per Unit Inertia Setting TOO HIGH Velocity Under Shoot TIME Figure 17 E REG Tracking Profiles 3 71 DRIVE SETUP Using The Notch Filter Some hoist ways may have rope resonance s that cause occasional vibrations roughness of ride or continuous oscillations at certain low frequencies There may be critical hoistway locations or payload weight combinations that tend to be more sensitive than others The effects are often felt rather than heard The frequency sensitive notch filter placed in the software path of the torque armature current reference signal can be effective to suppress the response of the DSD 412 drive to amplify those frequencies Adjustments for this filter are via 191 the period or center frequency of the filter and 190 the depth of the n
151. re enable ARB when the car returns to zero speed at the end of an elevator run Zero speed in this case is measured by the encoder not the reference and defined by 63 ARB will remain enabled until the drive is either shut down by removal of Run or Run Up Run Down or Drive amp field Enable logic signals or the internal DRIVE SETUP velocity reference is increased to again be larger than the threshold set by 133 If 63 is set too high there may be a jerk felt as the car comes to rest and the control switches to the ARB zero speed position hold mode If 63 is set too low minor disturbances and movement may delay and possibly prevent control transfer to the ARB hold mode because the measured encoder speed over a relatively short measuring time appears to not fall below the threshold value Set 63 to the lowest value that yields repeatable results Using Drive Stand By Power Reduction DSPR Elevators often sit idle for many hours during a 24 hour day Even though the DSD 412 drive can be set up to reduce motor field current to a stand by level a significant amount of power is continually lost by having the 3 phase main power transformer energized and cooling fans running Now it is possible to set a timer so that when the elevator has not been used for a length of time an external contactor can disconnect the main transformer and turn cooling fans off When car controller logic recognizes that a new elevator call has b
152. re zero speed is achieved the Brake Lift and Brake Pick relay outputs will be de energized and the drive will shut down regardless of the actual velocity This is a secondary back up means of ensuring that the elevator will stop 87 DRIVE SETUP DRIVE SETUP Drive Faults The following Faults are custom to the SA407 Generation 2 DSD 412 software Function Error Code Listing DCU ERRORS DISPLAY DESCRIPTION 13 ILLEGAL INSTRUCTION 14 LINE 1010 EMULATOR 15 LINE 1111 EMULATOR 16 PRIVELEGE VIOLATION 17 DIVIDE BY ZERO 21 WATCHDOG TIMEOUT 22 RESERVED INTERRUPT 23 UNINITIALIZED INTERRUPT 24 TRACE EXCEPTION 26 SPURIOUS EXCEPTION 97 OVERSPEED TRIP 98 TACH ENCODER LOSS 99 REVERSE TACH ENCODER 100 NOT ANUMBER 101 MATH OVERFLOW 102 MATH UNDERFLOW 103 FLOATING POINT DIVIDE BY ZERO 104 SIGN ERROR IN SPEED REG 112 BAD PCDU POINTER 113 MISSING PCU 114 LOCKED UP QUEUES 115 MULTIPLEXER CONFIG ERROR 117 20 SEC COMM START FAULT 118 150 MSEC COMM MSG FAULT 220 DCU ROM BUS ERROR 221 DCU RAM BUS ERROR 222 DCU NVRAM BUS ERROR 223 DCU DPRAM BUS ERROR 232 UNKNOWN BUS ERROR 240 DCU ROM BUS ERROR 241 DCU RAM ADDRESS ERROR 242 DCU NVRAM ADDRESS ERROR 243 DCU DPRAM ADDRESS ERROR 252 UNKNOWN ADDRESS ERROR 88 DRIVE FAULTS ERRORS DISPLAY DESCRIPTION 400 MOTOR OVERLOAD 401 EXCESSIVE FIELD CURRENT 402 CONTACTOR FAULT
153. reference clamp so that the drive can begin acceleration The Brake Lift output will remain active Dropping of the external Brake Pick relay will reduce voltage to the elevator brake coil Elevator Stop with Brake Control 1 Automatic setting of the Brake and drive shutdown sequence may begin at any speed The Drive RUN command is released by customer s logic This will set the internal reference speed to zero and start the Must Stop Timer The velocity regulator will continue to control velocity and current driving the speed to zero via the decel rate When the drive measures encoder Speed as being zero adjustable by 63 the Brake Lift and Brake Pick outputs will de energize The drive velocity regulator will continue to hold zero speed while the brake drops as set by the Brake Drop Timer 90 When the Brake Drop Timer expires motor armature current ramp down will occur as set by 85 This will gradually transfer torque from motor to brake to help prevent brake thumping When Current ramp down is complete the drive will cease operating and open the contactor If Brake Auto Stop 92 is ON AND a zero speed command is present AND the drive is stopped the sequence of 2 5 above will be activated NOTE The drive will turn OFF with the Drive Run and Enable commands still active These signals must be cycled to recover and re start from this auto stop operation If the Must Stop Timer 91 expires befo
154. rrent The voltage measured will be a function of the operating level of the parameter being displayed and the signal multiplier function 98 Signal range is limited to and will saturate at 10V Function 97 Analog Out 0 Multiplier Units PU Range 0 10 10 00 Default 0 80 This entry sets the specific multiplier value for Analog Output 0 A value of 0 8 will set 8 0 volts of output for a 1 per unit signal with some headroom to show over scale Function 98 Analog Out 1 Multiplier Units PU Range 0 10 10 0 Default 0 80 This entry sets the specific multiplier value for Analog Output 1 A value of 0 8 will set 8 0 volts of output for a 1 per unit signal with some headroom to show over scale Function 99 Speed Error Trip Time Units SEC Range 0 20 5 00 Default 5 00 This value sets the time sensitivity of the Speed Error Trip detection function Speed errors larger than function 100 for longer than function 99 seconds will cause a Speed Error Trip and automatic drive shut down with Fault F410 55 DRIVE SETUP AND ADJUSTMENT Function 100 Speed Error Trip Threshold Units Range 0 0 100 0 Default 100 0 This value sets the magnitude sensitivity of the Speed Error Trip detection function Speed errors larger than function 100 for longer than function 99 seconds will cause a Speed Error Trip and automatic drive shut down with Fault F410 Function 101 Auto Fault Reset Un
155. rrent is set too low the necessary motor torque may not be available 67 DRIVE SETUP resulting in excessive motor armature current or current limiting If Field Current is set too high the armature voltage may exceed voltage limiting points resulting in faults F407 or F408 Either condition may create an elevator tracking error AC Input Voltage Requirement amp Adjustment The line to line AC rms input voltage to the drive should be greater than or equal to the rated Full Load Armature Voltage To adjust the transformer taps run the elevator at full motoring load and rated motor RPM Empty car down During the constant speed portion of the profile measure the AC voltage input to the drive Secondary of Isolation Transformer 619 and the DC Armature Voltage 610 If the Armature Voltage is greater than the Input Line Voltage adjust transformer primary taps to get the next higher voltage level on the transformer secondary Speed Regulator Adjustment The Magnetek DSD 412 drive uses a proprietary velocity regulator called E Reg This is a double speed loop encoder feedback regulator designed specifically for elevator lift applications where the objective is to smoothly follow a repeated accel decel speed pattern reference with a relatively fixed load The following characteristics are important Follow the reference speed with a consistent tracking delay See Figure 16 No overshoot at the end of acceleration Preci
156. se 1 per unit rated armature current pre torque level Function 88 DSPR Delay Time Units MIN Range 0 60 Minutes Default 0 Disabled Determines the power OFF delay time for DSPR If set to zero 0 DSPR will be disabled Power will then remain ON at all times Function 89 Brake Pick Timer Units SEC Range 0 5 5 0 Seconds Default 1 0 Adjusts the ON time for the Brake Pick relay to be energized each time elevator brake lift should be started The internal velocity reference will remain at zero during the Brake Pick time Set to the actual time to complete lifting of the brake to prevent pulling through the brake during an elevator start Function 90 Brake Drop Timer Units SEC Range 0 5 5 0 Seconds Default 1 5 The time for the elevator brake to drop and set when de energized by the Lift and Pick relays Adjusts the time for the drive to keep holding the car at zero velocity while the brake drops Function 91 Must Stop Timer Units SEC Range 0 1 5 0 Seconds Default 2 0 Used only when elevator brake control is engaged Establishes a limit on how long the drive may continue to run after the Run command logic line is released This is a back up means to cause the drive to stop in 54 case zero speed is not achieved for any reason Function 92 Brake Auto Stop ON Units Logic Range 0 Off 1 On Default 0 When ON causes the controlled stop and Brake sequenc
157. set in 83 Function 85 Decay Ramp Units SEC Range 0 01 2 500 Default 0 200 This value controls the rate of decay of motor armature current during normal elevator stops This helps to prevent brake thumping when the drive is shut down and the brake is required to hold the car The drive Run logic command must remain active until the elevator comes to a stop and the mechanical brake is set Armature current ramp down will begin after the RUN command is removed from the drive When the ramp down is complete the contactor will be told to open NOTE The Drive Enable command must remain ON and the elevator Safety Chain must remain closed until after the contactor actually opens for this feature to work properly Function 86 Analog Speed Ref Zero Units PU Range 0 02 0 02 Default 0 00 At zero speed if the motor is creeping it may be necessary to adjust this parameter to compensate Adjust this parameter until motion is stopped at zero speed After adjusting the low end of the profile it may also be necessary to adjust the reference at the top end of the profile Refer to function 82 to set the speed reference gain DRIVE SETUP AND ADJUSTMENT Function 87 Pre Torque Mult Units Range 0 25 2 00 Default 1 00 This value multiplies the available pre torque reference signal for calibration adjustment If this is set to 1 0 a 10V analog signal or full scale serial link signal will cau
158. sion speed following including at zero speed Feed forward for inertia forcing Rejection of resonant load characteristics Ability to start with a pre primed error to counteract load offset roll back Primary adjustments for E Reg are High amp Low Speed Bandwidth 39 amp 40 Sets the desired drive response from Speed Reference changes to motor speed Units are Radians sec of the closed loop crossover frequency bandwidth The constant time lag characteristic of E Reg will be 1 Response in seconds Increasing the Response setting will increase the gain to improve velocity tracking performance DRIVE SETUP Per Unit Inertia Function 41 Sets all regulator gains to adjust for elevator system inertia The numeric value of Per Unit Inertia is a ratio of equivalent rotating inertia Vs rated motor strength Units are in seconds If System Inertia is set too low velocity overshoot will occur If set too high there may be hesitation or undershoot when approaching a new target speed Stiffness Function 42 Sets the gain of internal PI error amplification and inner loop regulator gain Affects the responsiveness of the drive to ignore or react to load disturbances Range 0 5 to 9 No calibrated units Low numeric values will yield smooth performance while following reference changes High numeric values will yield better response to speed errors and load disturbances but can cause amplification of elevator rope resonance Gai
159. splay setup points that the drive needs for operation Items that would typically fall into this category are functions such as Accel Times Regulator Gains Rated Speed and any other parameters The following steps show how to modify a given parameter via the SCDU display 1 Use the A and V keys to select the function number to be accessed The two colored LEDs remain off during this step For example if 040 is chosen 4 0 Both LEDs 2 Press the DATA FCTN key to enter the Data level for this function number The green LED is lit to indicate that the number being shown is the current actual value for this parameter For example if function 40 is currently set for a value of 10 6 it will be displayed as 1 0 6 STANDARD CONTROL DISPLAY OPERATION B Green LED Lit 3 Use the A and V keys to ramp the number in the SCDU display to the desired value Note that the red LED is lit to indicate that the value being displayed is NOT the actual value but rather is in the process of being changed Each parameter has an upper and lower limit The following display will occur when the lower limit is exceeded WB Red LeD Li Similarly if the upper limit is exceeded the SCDU displays Red LED Lit The SCDU display will increment from 10 6 to 11 0 if the A key is pressed 4 times 1 1 O
160. sure that the Armature Voltage Feedback leads at TB5 are re connected with the original polarity e Ensure that the proper Cube ID PCB is installed at J19 Cooling Fan Replacement The cooling fan is held in place by 5 socket head cap screws These require a 9 64 inch Allen wrench The 115VAC supply cord plugs in from the side Be sure to move the fan guard from the old fan to the new unit if replaced Retorque mounting screws to 20 inch pounds Thermistor Replacement The thermistor connects from the heatsink up to J20 on the Armature Interface PCB You must remove the Armature Interface PCB for access Trim wires the correct length to avoid future insulation abrasion damage Thermostat switches at J17 amp J18 are accessed in the same way Current Transducer Replacement The armature current transducer is mounted inside the lower right corner of the chassis 1 Removal a Remove the DC fuse F4 MAINTENANCE b d Remove J15 Remove the buss bar bolt to the lower right DC heat sink buss Remove 4 10 screws from the outside of the chassis Two on the bottom near the fan Two on the lower right side Pull out and up on the buss bar connection for fuse F4 The entire assembly should come out including the current transducer 2 Re install a Assemble the buss bars through the replacement transducer Apply Joint Al Z to the buss bar interfaces Screw in the bolt for the buss bar to F4 onl
161. t display are used to indicate which level of a particular function the SCDU is currently at The top level of the SCDU operation is called the Function level The two colored LEDs are off when the SCDU is in the Function level The A or Wkeys are used to select a function number to be accessed while at this level The A key increments the function number in the display while the Y key decrements it The SCDU will ramp the displayed function number when the or Y key is pressed and held for 1 2 second or longer The DATA FCTN key is used to toggle between the Data level and the Function level Press the DATA FCTN key when the desired function number is in the display At this point the SCDU leaves the Function level and enters the Data level Note that the green LED is now lit This operation is consistent for every function on the SCDU although the data actually displayed while the 36 LED is GREEN is function number specific Examples of every type of SCDU function are given in subsequent sections All function numbers are shared between the SCDU and the PCDU Portable Control Display Unit There are some functions however that can only be performed with the PCDU When such a function number is selected on the SCDU and the DATA FCTN key is pressed the SCDU S display will change to P c du oth evs off Changing Parameter Functions SCDU functions are used to modify and or di
162. t voltage Otherwise leave 55 set at zero to automatically utilize the main input voltage setting of 9 If 2 is set to ON the Self Tune measured value for L R 615 will be used instead of 51 Verify that the above settings are correct The scaling of measured motor field current is also important Verify that the motor field wiring is connected correctly to the proper ampere range tap at TB4 and that SW1 is set accordingly Check the calibration of measured field current drive display 612 against that of a separate DC clamp on ammeter clipped around a motor field wire If motor field weakening is not required at top speed leave WEAK FIELD CURRENT 49 set to 40 amps or set it equal to RATED FIELD CURRENT 50 Set STANDBY FIELD CURRENT 53 as desired during drive idle If top speed is greater than the motor base speed set WEAK FIELD CURRENT 49 so that actual motor voltage does not exceed the RATED ARMATURE VOLTS 7 during a high speed full load run The crossover point between Full Field and Weak Field current will be automatically calculated Motor field current will be adjusted by those settings and measured encoder speed The DSD 412 drive does not directly regulate armature voltage This is determined by field current adjustment settings and measured rotational speed Be sure to adjust motor field current so that rated armature voltage is achieved at top speed before attempting to set Per Unit Inertia Note If Field Cu
163. tability and is not recommended 25 INSTALLATION 1 Excessive bearing wear can occur in the encoder due to the method of mounting and holding the rubber wheel against the sheave 2 Lack of concentricity of the measuring wheel 3 The rubber wheel can develop a flat spot when it sits idle for an extended time This goes away after a short time of operation but it can affect performance while it exists 4 Anangular misalignment can cause the measuring wheel to skip or hop sideways causing a disturbance in the feedback signal Coupling Almost regardless of the care used in mounting the encoder there is likely to be some small amount of misalignment A good quality coupling between the encoder shaft and the motor stub shaft can help avoid the remaining problems due to shaft runout A good coupling will also offer some protection for the encoder against end float a condition which exists in gearing on direction changes and which can be transmitted through the motor Again the coupling should provide electrical insulation between the motor and encoder shafts Encoder Wiring Wiring between the encoder and the DSD 412 drive should be shielded cable with 3 twisted pairs The pairs should be made up of A and A B and B 5VDC and common The shield should be insulated from the encoder case and only connected at the drive end to A1TB1 6 This cable should be run in a separate conduit between the encoder and the D
164. tainance and troubleshooting only Function 113 Armature Voltage Max Speed Units VDC Range 0 650 Default 100 This parameter will control the speed which the motor will reach when operating in the Armature Voltage Feedback Maintainance Mode The theory would be that the motor will operate up to this level of VDC if given a 100 speed command The speed can be increased or decreased by either raising Increase Speed or lowering Decrease Speed this number or reducing Increase Speed or increasing Decrease Speed function 50 Rated Field Current Function 114 Pre Torque Enable Units logic Range 0 Off 1 On Default 0 Off Setting this value to 1 on enables the pre torque function to operate The pre torque value from the analog pre torque input will be multiplied by function 87 and used to pre stress the velocity error integrator to that armature current per unit value upon starting If function 110 is set to 3 for serial link control the pre torque reference input will be from the serial link message The adjusted pre torque value used at the start of an elevator run may be viewed during the run via function 603 If pre torque is not used leave this function set to 0 OFF Function 115 Run Up Run Down Select Units logic Range 0 Off 1 On Default 0 Off This function selects how the drive will determine the RUN Direction when REF MODE function 110 is set for internal pre
165. th simplified motor field weakening and stand by adjustments e Maintainance Armature Voltage Feedback mode e User selectable choices for relay logic output including Drive OK No Faults relay Invert Noninvert Alarms Relay Drive operating OK to release brake Car above below speed X threshold Car above below Zero speed threshold Car Moving Up Car Moving Down Speed Error above below X threshold for Y seconds Drive Standby Power Reduction e User selectable analog diagnostic trace outputs e Diagnostic indicator for verifying logic input and output conditions e Analog speed reference zero adjustment 46 e Alarm Relay to indicate important but non critical conditions e Motor or transformer thermostat over temperature Motor Over Load Drive Over Heating Low Utility Line Input Safety related fault trapping with diagnostics including Motor Over Current Motor field Malfunction Contactor Failure Severe Utility Line disturbances Encoder Loss Over Speed Trip User selectable automatic or external commanded Fault Reset e New features have been arranged to be compatible with present installations of DSD 412 using General Elevator software SA274 The factory default settings of software SA407 are such that it will act like SA274 software The user must consciously re program one or more selectable features to do otherwise e Several new useful features have been added for SA407 plus more diagnostic c
166. the DSD drive proper Electro static Discharge ESD procedure MUST be followed EPROM Replacement To replace an EPROM U13 014 U39 U40 first check that the new device has the 106 same U number on its label as the defective device Remove the existing device and install the replacement in the same position Then perform the Start Up Procedure in Drive Start NVRAM Replacement To replace an NVRAM device U56 remove the defective device and install the replacement in the same position Then perform the Start Up Procedure If you have kept a record of the parameter settings you should be able to re load all parameter values save the data and go If you do not have a record of the working drive parameter settings you must re enter and re tune all parameters by repeating all drive adjustment procedures Testing and Replacement of Power Components Fuse Replacement Whenever attaching a fuse wire or bus bar to another component to achieve an electrical connection always apply a thin coating of electrically conductive joint compound to all contacting surfaces Magnetek recommends using Joint Al Z compound for all bolted electrical power connections Diagnosis of fuses The input AC fuses are checked when power is initially applied during the Start Up sequence of the drive and again when a PCU DIAGNOSTICS 998 is performed The output DC fuse is checked only when a PCU DIAGNOSTICS 998 is performed
167. the ARB feature cannot work Anti Rollback can be used with external load weighing and pre torque as these features are independent of each other If motor pre torque values are not precisely correct at the time of starting the elevator drive as may occur during elevator re leveling the features of ARB will intervene to help reduce rollback If pre torque is accomplished correctly Anti rollback will not need to do anything However it can still cause vibration or oscillation if ARB gains are set too high It is not always convenient to use payload weights during adjustment Most elevators are counterweighted such that an empty car represents an unbalanced load of 43 57 with the counterweight being heavier If Anti rollback works effectively with an empty car at all landing stops it should also perform adequately with full payload weight in the car Step 6 in the adjustment procedure indicates how to verify and adjust ARB operation with a full car payload but it is not always necessary Anti rollback may also be used to hold the car at a constant position at the end of an elevator run Normally this is not required because the velocity regulator E Reg will stabilize and hold an armature current value as necessary to hold the car at a standstill at the end of an elevator run However turning ARB back on may be useful to aid car re level positioning without first setting the brake for a total drive re start Set 130 toa 2 to
168. the NVRAM during the critical power up and power down periods Precautionary Statements In addition to notes the following types of precautionary statements appear in this manual IMPORTANT A statement of conditions that should be observed during drive setup or operation to ensure dependable service CAUTION A statement of conditions that must be observed to prevent undesired equipment faults or degraded drive system performance WARNING A statement of conditions that MUST BE OBSERVED to prevent personal injury death or serious equipment damage CONTACT MAGNETEK How To Contact Magnetek For additional information contact any Magnetek Representative or contact the DSD 412 Elevator Technical Support Staff at Magnetek Elevator Products N50 W13605 Overview Drive Menomonee Falls Wisconsin 53051 USA PHONE 800 236 1705 all numbers USA OR 262 252 6999 FAX 262 790 4142 Magnetek Industrial Controls UK Limited Cranfield Innovation Centre University Way Cranfield Bedfordshire MK43 OBT UK PHONE 44 0 1234 756036 FAX 44 0 1234 756037 See us on the web at www elevatordrives com INSTALLATION Installation Pre Installation Considerations Receipt of Shipment All equipment is tested against defect at the factory Any damages or shortages evident when the equipment is received must be reported immediately to the commercial carrier who transported the equipment Assistance if required is avai
169. the SCDU displays the fault code for a shorted doubler F911 S F L t F 9 T 1 L Green LED Lit Severe faults can only be cleared by pressing the CPU reset button on the Drive Control PCB or by cycling power to the drive If the display stays on tESt and the contactor doesn t pick up there is a fault in motor field connections or settings If all tests indicate that there are no failed power components SCRs and fuses the SCDU displays BN Both LEDs off Remove power from the drive to replace the SCR s that are shorted and repeat this test until the SCDU displays the PASS message If the PCU detected one or more open SCR doubler packs the SCDU displays the fault code for an open SCR doubler pack F912 F 9 1 2 P UB Green LeD Lit Press the DATA FCTN key to exit the PCU Diagnostics routine and return to the Function level The SCDU displays 99 8 Both LEDs off Remove power from the drive consult Section 5 MAINTENANCE to replace the SCR s that are open and repeat this test until the SCDU displays the PASS message If the PCU detects Reversed Armature Feedback wires it displays the fault code for a Reverse Armature Fault F917 i i Both LEDs Off If the PCU detects one or more Open AC Fuses it displays the fault code for a blown fuse F910 9 1 7
170. the data within this packet It is the modulo 256 sum of bytes 1 through byte 7 inclusive Demand Velocity Response message from the DSD 412 is as follows Byte 1 Byte2 Byte3 Byte4 5 Byte7 Byte8 Byte9 Byte 10Byte 11 Sync Sync Control Control Control Numeric IPCDU PCDU PCDU Check Byte Byte Status Status 2 Status 3 Data high Data low display display display FAN 05h 1 byte byte 1 3 Bytes 1 amp 2 These bytes will always be set to FAh and 05h respectively They are used for synchronizing the host to the start of an incoming Demand Velocity Response message from the DSD 412 Byte 3 N259 C010 This byte contains 8 logic status signals as defined below BO 71 to act as a synchronization bit for the host Bf 71 to act as a synchronization bit for the host B2 0 direction is not UP 1 Tach direction is UP B3 O Tach direction is not DOWN 1 Tach direction is DOWN B4 0 lt tach overspeed fault 1 Tach overspeed fault F97 5 0 tach loss fault 1 Tach loss fault F98 B6 O No reverse tach fault 1 Reverse tach fault F99 B7 0 Serial Communications Fault 1 Serial Communications Fault Byte 4 259 011 This byte contains 8 logic signals to indicate drive faults BO 0 Motor over load 1 Motor over load fault F400 B1 excessive field current 1 Excessive field current F401 B2 0 lt contactor failure 1 Contactor failure F402 B3 0 lt is not
171. the start to the vane switch 3 Setthe Decel Time so that the stopping distance is just a little less than the distance from the vane switch to the stopping floor 4 Formulti floor runs set the speed to contract speed and set the decel time so that the decel distance is just slightly less than the distance from the vane switch to the target floor Other options certainly exist Drive amp Field Enable The Drive amp Field Enable contact input enables the drive to run and also acts as a command to fully energize the motor field Closing Drive amp Field Enable in advance of the Hardware Run or Run Up Run Down command will allow time for the motor field to become fully energized for a minimum of starting delays When the Drive amp Field Enable circuit is open the motor field circuit will be energized at the stand by current level If Field Enable remains ON for more than 5 minutes without running the drive an F403 will occur and the Full Field condition will be turned OFF RUN w DIRECTION amp RUN UP RUN DOWN DRIVE SETUP One of two methods may be selected to Run the drive and determine the direction Use function 115 to select 1 Hardware Run amp Reverse 115 Off The Hardware Run input starts the drive The Reverse contact controls the direction The Drive amp Field Enable signal must also be energized and remain so for this to occur The desired direction command should be stable before a non z
172. time constant measured during self tune Function 616 Speed Error Units This displays the difference between the speed reference and speed feedback Function 617 AC Line Frequency Units Hz This display is the measured frequency of the 3 phase AC line Function 618 Heatsink Temp Units C This display is the measured heat sink temperature of the drive Function 619 AC Line Voltage Units Volts rms Line Line This display is the measured 3 phase AC input line line voltage Function 620 F413 Tracking level Units PU This is the difference between the Field Current reference and the Feedback F413 warning will result if higher than F192 for 5 seconds Function 621 Serial Communication Control Enabled Units LOGIC This logic will be ON if RS422 or RS232 control communications is enabled for drive control Does not include use of PCDU DISPLAY MONITOR FUNCTIONS Functions 688 699 The following read only values identify the drive hardware set up and control software stored in E PROMs U13 U14 U39 amp U40 FUNCTION DESCR VALUE 688 CUBE 1 0 Table 9 689 FIELD Table 10 RANGE 690 U13 U14 404 O7SAXXX 691 PCU RELEASE 692 DAY 693 MONTH 695 YEAR 696 BETA P 697 U39 U40 407 O7SAXXX 698 DCU REVISION 699 CUSTOMER 9 VERSION 1 0 DISPLAY MONITOR FUNCTIONS
173. tion c When in proper position torque down the 2 upper and 2 lower buss bar mounting nuts to 200 inch pounds d Torque down the output lug nut to 200 inch pounds e Torque down the bolt at the lower right buss bar to xx inch pounds f sure to run PCU diagnostics when power is re applied to verify that all is OK Removal and Replacement of the Armature Interface PCB 1 Remove flat cable connector at J24 and Current transducer cable at J15 Remove thermostat and thermistor connectors at J17 J18 amp J20 2 Tag and remove Armature Voltage Feedback wires at TB5 3 Remove 12 pairs of the plug on SCR gate and cathode leads 111 MAINTENANCE 4 Remove the 3 phase connection nuts at E31 E32 amp E33 near middle of the PCB Do not remove the threaded stud 5 Remove the 6 large nuts at top and bottom of the PCB 6 The PCB is now loose Lift it off from remaining stud hardware 7 The Cube ID PCB is located at J19 If the replacement Armature Interface PCB does not have a Cube ID PCB in place remove it from the old and place on to the new 8 Re install the replacement Armature Interface PCB following steps 1 6 above in reverse order and a sure to re use all washers and nuts as originally supplied These mechanical ties also make electrical connections to the PCB b Torque down the small nuts at E31 33 to 10 inch pounds c Torque down the larger 6 nuts to 70 inch pounds d En
174. to recognize that the motor field current is nearly up to the full field value Motor field current must be above this value before the drive will be allowed to start If told to start prematurely the drive will wait for motor field to rise above this value before picking the loop contactor Function 38 Armature Voltage Bandwidth Units RAD Range 1 0 4 0 Default 2 0 This entry sets the bandwidth when operating in the Armature Voltage Feedback Mode This parameter is engaged when function 112 0 Function 39 High Speed Bandwidth Units RAD Range 1 0 15 0 51 DRIVE SETUP AND ADJUSTMENT Default 6 0 This entry sets the closed loop bandwidth response of the velocity regulator at speeds above the setpoint identified 105 The tracking delay between the speed dictation ramp and the actual motor speed during the linear portion of the acceleration or deceleration ramp will be 1 function 40 seconds A setting lower than that of function 40 is useful to suppress rope vibration effects at high speed This simplified adjustment takes the place of the Gain Reduce function supplied in earlier versions software Function 40 Low Speed Bandwidth Units RAD Range 1 0 15 0 Default 6 0 This entry sets the closed loop bandwidth response of the velocity regulator at speeds below the setpoint identified in function 105 The tracking delay between the speed dictation ramp and the actual motor speed
175. ts the calibration factor for internal pre set speeds and car speed display via function function 600 The units may be ft min or m sec or cm sec as determined by the user However the units used for this parameter must also be used to set all other pre set speeds When the motor is turning at rated speed in RPM as programmed in function 11 then function 600 will display the number in programmed 17 Function 21 External Accel Limit Units Range 2 00 10 00 Default 4 20 This is the maximum acceleration rate for the elevator when an external analog or serial link speed reference is used This function provides a slew rate limit in the event of noise or other discontinuity on the externally supplied reference signal This entry must be set higher than that of the incoming speed dictation ramp or the elevator speed will not track the desired reference velocity The units will be distance SEC 2 where distance uses the same units function 17 Function 22 Error List Reset Units Logic Range 0 Off 1 On Default 0 This entry resets the F800 error list removing all faults on the list This may be used to clear out old data to begin capturing a fresh record Function 32 Full Field Detect Units of 50 Range 30 90 Default 80 This entry sets the threshold for sensing a motor field at full amps condition The motor field must be above function 50 X function 32 for internal logic
176. ue is used to calculate armature 49 DRIVE SETUP AND ADJUSTMENT current regulator gains and to calculate motor CEMF Function 6 Armature Inductance Units HNY Range 0 001 1 0000 Default 0 01 This is the value of the motor circuit inductance If a ripple filter is being used the value entered should include effects of the ripple filter The value to be entered is best measured by monitoring F614 Measured Motor Circuit Inductance after the SELF TUNE function has been completed This value is used to calculate armature current regulator gains Function 7 Rated Arm V Units VDC Range 150 550 Default 240 This entry sets the motor nameplate full load full speed voltage required by the motor used with the drive It should agree with the motor nameplate VFL Function 8 Reg Crossover Units RAD Range 100 1000 Default 500 This entry sets the bandwidth of the current regulator in radians The nominal setting for this entry for most cases would be 250 radians The responsiveness of the armature current regulator will increase as this number increases If this number is too large the motor current may fluctuate If this number is too small the motor response may become sluggish Function 9 AC Voltage Units VAC Range 150 525 Default 230 This entry sets the nominal AC line to line voltage applied to the drive from the secondary of the isolation transformer
177. ufficient to hold the elevator car and prevent rollback Operation is fully automatic when enabled by function 114 No external sequencing is necessary If serial link control is ON the pre torque value will be from the serial link 78 Using External Velocity Commands Operation with an external analog velocity command is similar to the sequences above This mode is programmed via the logic select function 110 Setting 110 toa 1 enables the bi directional analog follower mode The actual car direction will always follow the polarity of analog reference Both the Drive amp Field Enable and the Hardware Run signals must be active to cause the drive to run When function 110 is set to 4 the uni polar analog follower mode is active The drive will control the speed of the elevator based on the positive value of the supplied analog reference The direction of travel will be determined by the status of either the direction select function 115 OFF or Run Up Run Down function 115 ON logic input command lines Both the Drive amp Field Enable and the Hardware Run signals must be active to cause the drive to run Analog reference wiring is sensitive to electrical noise interference The reference signal channels are differential and should be wired with twisted pair shielded cable as shown in Figure 7 Typical Analog Signal Wiring Be sure that the cable shield is connected only at the drive end DRIVE SETUP Avoiding Ana
178. unction as older software SA274 Logic Output Options Excessive Field Current Relay K3 is picked during normal operating conditions with N O contact closed Relay K3 drops and contact opens if measured motor field current ever exceeds 125 of Rated Field current function 50 When programmed to control output K4 the output will be active during normal operation and become inactive if motor field current ever exceeds 125 of Rated Field current function 50 This function can be used as a warning of a malfunction condition that could cause damage to the motor field High Low Line Output becomes active if motor CEMF becomes greater than 1 09 X drive VAC input or if VAC input falls below 0 9 X Rated VAC function 9 This is a warning indication that there may be operating or adjustment problems associated with too much CEMF or a drooping power line C Run Engaged Output becomes active when the drive speed regulator is in operation This output is inactive during armature current ramp down or if the contactor is open May be used as an indication that the drive is in control and that the elevator brake may be released D Moving Up Output becomes active when encoder velocity is greater than the setting of function 63 in the UP direction May be used to verify proper car direction E Moving Down Output becomes active when encoder velocity is greater than the setting of function 63 in t
179. utine and return to the Function level The SCDU displays 9 9 7 Both LEDs Off 6 After completion of SELF TUNE enable Function 2 Unless using manual entry Power Conversion Diagnostics The drive has built in diagnostic routines that can be performed via the SCDU The PCU diagnostic routines are able to test for four failure modes The first test that the PCU performs is a test of the three line fuses Assuming the three line fuses are all OK the PCU then performs a test for shorted SCRs doubler packs If this test indicates no shorted SCRs doublers the PCU then verifies that less than 5 of the value entered for Rated Field Current is attainable The PCU then tests for open SCRs by passing current through the forward bridge followed by the reverse bridge and finally checks polarity of voltage feedback The result of the test is displayed on the SCDU after the test completes The SCDU will light certain unique LED patterns on its display corresponding with the failure see displays in the procedure that follows The Fault Codes F910 Blown Fuse F911 Shorted SCR F912 Open SCR and F917 Reverse Armature Feedback Wires will not appear on the SCDU if the Error Disposition List is programmed so that they are not reported to the Fault List 44 WARNING Armature current is circulated through the armature circuit during parts of the PCU Diagnostics Function The PCU will reduce
180. when running blown fuses may cause an F910 or F404 With input power disconnected the fuses may be checked with an ohmmeter while still in place in the circuit Replace any fuse that indicates a resistance reading of more than a fraction of an ohm Re check that the fuse is indeed open blown when removed from the circuit Be aware that other circuitry may cause a low resistance reading to appear across a blown fuse If there are doubts about the fuse being good or bad remove connections to at least one end before measurement For maximum assurance to prevent call backs Magnetek recommends replacing all three AC line fuses even when only one or two are blown If the drive blows AC input fuses check for shorted SCRs before power is re applied While the input fuses are removed for replacement measure circuit resistance from each AC line to AC line on the SCR power bridge side of the fuse connections and from each AC line to the DC output busses If resistance readings are less than 100 K ohms suspect shorted or badly damaged SCRs Replace those faulty parts before attempting to power up again with fresh fuses There is a small fuse inside the Drive Power Supply A4 This fuse may blow if 115 Vac control power has surged above 135 volts If there is voltage at A4TB3 1 amp A4TB3 7 but the power supply does not appear to work this fuse may be checked by removing the power supply cover A blown power supply fuse does not necessari
181. with NEC UL CSA and other applicable codes for power distribution safety e grounding stud or buss bar should be provided within the drive enclosure cabinet electrically bonded to the metal enclosure e A grounding wire should be provided directly from the grounding terminal on the DSD 4412 drive chassis to the common grounding stud 26 e Agrounding wire should be provided directly from the electrical sub panel on which the DSD 412 drive is mounted to the common grounding stud Other electrical equipment such as fans or relay circuits may be grounded to the electrical sub panel e Agrounding wire should be provided directly from the elevator motor frame to the common grounding stud e Agrounding wire should be provided directly from the power isolation transformer frame to the common grounding stud e Agrounding wire should be provided directly from building steel to the common grounding stud e f an armature circuit ripple filter is used a grounding wire should be provided directly from the ripple filter inductor frame to the common grounding stud The sub panel for capacitor mounting within the filter should have a grounding wire to the inductor frame e The secondary side of the power isolation transformer should remain un grounded The low voltage circuit common should be grounded by connecting A1TB1 43 or A1TB1 44 to A1TB11 Pre power Check CAUTION TO PREVENT DAMAGE TO THE DRIVE THE FO
182. with low voltage setting of 7 Increase 7 for test Damaged SCR s may occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 F932 Armature CEMF volts gt 20 of rated during test Probable causes Motor rotating during the test producing CEMF High motor armature resistance Ensure that brush commutator is clean Temporarily increase Rated Armature Volts 7 during the test may occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 F933 Motor armature current does not increase to near test amps within 6 seconds Probable causes Faulty motor armature circuit Check wiring and motor for open circuit Open SCR or missing SCR gating Perform Self Diagnostics to verify occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 F934 Calculated armature inductance is less than 0 00017 Henry The drive will not Self Tune with less than 170 micro henries of load inductance Verify that inductance is really that low Verify that Vac value at 9 is correct Manually enter the minimum value into 5 Parameter 2 must be set to OFF may occur during Self Tune Fctn 997 or Self Diagnostic Fctn 998 96 DRIVE FAULTS ERROR FAULT CODE PROBABLE CAUSE CORRECTIVE ACTION F935 Calibration of bus voltage and armature voltage feedback circuits do not match Probable causes Missing wire to bus or armature voltage feedback circuits
183. wo colored LEDs remain off during this step 99 4 Both LEDs Off 41 2 Press the DATA FCTN key to enter the Data level for function 994 The green LED is now lit to indicate that this function is currently being accessed It is possible to SAVE the current active parameters in RAM to the NVRAM parameter list or to RESTORE the current parameters from the NVRAM parameter list to ACTIVE RAM Note that a RESTORE is the same operation that occurs inherently every time the drive is powered up Upon entering the data level for this function the SCDU displays r E 5 t Green LED Lit The and keys be used to toggle between the above display which indicates a pending RESTORE operation and the following display which indicates a pending SAVE Red LED Lit Note that as soon as eitherthe A or key is pressed the red LED will light 3 Press the ENTER key to actually perform the transfer of data If ENTER is pressed while SAVE is displayed the SCDU display may change to P r o I This display means that the NV RAM PROTECTION switch is in the incorrect position preventing writes to the NVRAM Move the switch to the OFF position press the DATA FCTN key and start over from step 2 STANDARD CONTROL DISPLAY OPERATION If the SAVE or RESTORE operation was successful the green LED will lig
184. y finger tight Slip the loose parts into the chassis from the top side the reverse of 1 e above Align the transducer module mounting holes with those in the 112 chassis Start all 4 chassis mounting screws and then tighten them to 10 inch pounds Start the lower buss bar bolt Remove J31 from the Signal Interface PCB Lift this PCB to temporarily remove and bend connecting wires out of the way for access to the upper buss bolt by the current transducer Place the upper buss bar over the fuse mounting stud Now tighten both buss bar bolts to 40 inch pounds Replace the Signal Interface PCB Plug in J31 and J15 Replace fuse F4 Be sure to use the same washer spacer arrangement to achieve flat mounting of the fuse tangs at both ends Re tighten fuse mounting to 70 inch pounds Spare Parts SPARE PARTS Description DSD 412 Reference Magnetek Part or Quantity Rating Designator kit Number Per Drive Fan 100A 1 1 05 00016 0048 1 195A 1 1 05 00016 0012 1 300A 1 1 05 00016 0008 1 AC Line Fuse 50 700 25A F1 F3 1 05 00017 0227 3 AC Line Fuse 70A 700V 50A F1 F3 1 05 00017 0155 3 AC Line Fuse 150A 700V 100A F1 F3 1 05 00017 0166 3 AC Line Fuse 250A 700V 195A F1 F3 1 05 00017 0220 3 AC Line Fuse 400A 700V 300A F1 F3 1 05 00017 0234 3 Armature Fuse 70A 700V 25A F4 1 05 00017 0155 1 Armature Fuse 100A 700V 50A F4 1 05 00017 0178 1
185. y the values of 0 to 9 plus limited alphabetic characters The so called half digit can display only the value 1 and a plus or minus sign Underneath this display are a green LED labeled DATA a red LED labeled DATA PEND and a row of four push buttons The DATA and DATA PEND LEDs are used to indicate the significance of the LED display data and the four push buttons DATA FCTN UP DOWN and fl are used to operate the SCDU The functions and capabilities of the SCDU are explained in greater detail in Section 3 Non Volatile RAM Protection To the left of the four push buttons of the SCDU there is a red LED labeled MEM UNPROT This LED is lit when the protected portion of the non volatile random access memory NVRAM can be written to Protection of the NVRAM is determined by the switch labeled S3 which is located just under the MEM UNPROT LED When this switch is in the ON position the NV RAM UNPROTECTED LED 22 is off and the protected portion of the NVRAM cannot be written to This prevents setup parameters and other important constants from being accidentally erased or changed When these parameters need to be changed the switch can be moved to the OFF position removing the write protection and causing the NV RAM UNPROTECTED LED to be lit Refer to the section described as saving parameters The NV RAM PROTECTION switch should be left in THE ON position UN PROTECTED NV MEM LED OFF to protect

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