Home

VCI -- Sequence of Operation Manual

1. O G O eg oie Os Ee OEE 2 6 5 EMERGENCY S TOPS WITE He nett ticos ete p p oe itr Dott E eru ee 2 6 6 CAR DOOR GONTAGE et UE ee RE eds 2 6 7 HATE DOOR CONTACT Stree Su iD Deae eiim miedos iod epe 2 6 8 DOOR ZONESWLECH tame ien cote deii eT GR Roi EES EO DNRC ere e 2 6 9 DOOR OPEN EIMEE SWEEGH icti tti ee ce ee e ue ieu iet eee nein 2 6 0 DOOR CLOSE LIMIT SWITGEL eiie cett divi Q er re PH E RE CT EO e E PH Ee et e Sa 2 6 1 SABETY EDGE ek A RO HE CER e oo 2 6 12 y ELECTRIC EYES Tay a k esee em pedet oque mde cuedeee die ee 3 6 13 DOOR OPEN BUTTON fateor int be ane atu i un o ret S D a e et iens 3 614 DOORCEOSEBUTTON u q a rm t rte n RH E EE tam EH Rs 3 6 5 CAR CALL BUTTONS ities cis pee metuant Pa p e eto dere eie ER 3 6 6 HAELCALLBULFDIONS 22 koq ae nels hah mae tetmdectea n Beg 3 6 17 TUPAGE VELIS WIECH 5 2 tiit EGO heu e tei i EOD e cue ttes 3 6 18 DOWN EEVELS WIT CH 7 e ec CER e ERR ERE CER e ite tees 3 6 19 LOW EEVBESWLELGH rtt RP REDE EITHER Ett CHER ER De RUE TR 3 6 20 INSPECTION ACCESS SWITCH S retten edem eee hit be eee dete et 3 6 2 1 HOISTWAY ACCESS SWITCHES in isti is u Sapa HU RU UR UD OE 4 622 TOP OF CAR INSPECTION SWITCHES 71 2 ten iet e C e Pe ho i Q PER li et ERES 4 623 HALL FIRES WITCH is ott
2. 6 9 DOOR OPEN LIMIT SWITCH The Door Open Limit Switch is open when the doors are fully open and closed at all other times It will de energize the door open relays in the door operator when the doors have opened fully 6 10 DOOR CLOSE LIMIT SWITCH The Door Close limit Switch is open when the doors are fully closed and closed at all other times It will de energize the door close relays in the door operator when the doors have closed fully Depending on the type of door operator used the Door Close Limit may be by passed when the car is running to keep torque on the door motor 6 11 SAFETY EDGE The Safety Edge provides a normally open contact that closes when the Safety Edge on the leading edge of the doors encounters an obstruction while the doors are closing This will cause the doors to re open Unless otherwise specified the Safety Edge will open the doors fully on Fire Service Phase 1 if the doors are already partially open but it is cut out on Fire Service Phase 2 SQ MT9a Virginia Controls Inc Section 6 Page 2 6 12 ELECTRIC EYE The Electric Eye provides a normally open contact that closes when the Electric Eye detects an object in the path of the doors It will cause the doors to re open The Electric Eye is cut out on Fire Service 6 13 DOOR OPEN BUTTON The Door Open Button provides a normally open contact that closed when the Door Open Button is pressed It will re open the doors Unless otherwise specified the Door
3. The car runs up at leveling speed When the car rides off the Up Leveling Switch it follows the sequence described above for stopping NOTE 1 The car can re level with the doors open since the UL relay will bypass the Door Contacts The combination of contacts in parallel with the Door Contacts prevents the Door Contacts from being SQ MT9a Virginia Controls Inc Section 1 Page 12 1 9 bypassed in the event that one of the relays fails NOTE 2 A Leveling Cutout Timer in the PLC cuts out leveling after 15 seconds The car will then stop open the doors if it is in the Door Zone then continue to run in response to other calls DOOR OPEN AND CLOSE The Door Operator Motor is a DC Fractional Horsepower Motor with a separately excited Shunt Field The direction of rotation of the motor is determined by the condition of O and C the Door Open and Close relays The Door Open and Close relays are piloted by the PLC and are mounted in the MODSS Pilot Operator on top of the car If an MODSS Pilot Operator is not used the operation is still similar for all passenger doors The Door Open and Door Close are subject to the following devices 1 oa amp N 7 The Governor Up and Down Final Limit Sws Sw and Inspection Stop Sw any other devices connected between terminals 1 and 3 cut out Door Open and Close The Emergency Stop Switch cuts out Door Close Inspection Access cuts out Door Open and Door Close through the
4. VIRGINIAN CONTROLS SEQUENCE OF OPERATION FOR ELEVATOR CONTROLLER VIRGINIA CONTROLS INC 2513 Mechanicsville Turnpike Richmond VA 23223 Tel 804 225 5530 Fax 804 225 0116 email vacontrols aol com Revision 1 1 November 6 2002 Manual SQ MT9 doc SQ MT9a Virginia Controls Inc Section 1 Page 1 1 Table of Contents SEQUENCE OF OPERATION BASIC FEATURES 5 Lal FEOOR POSITION rer RE 5 FLOOR CHANGE with FLOOR 6 FLOOR CHANGE with PULSING SELECTOR 0u ccsccscssscssseseesesseesecceccsceesceseeseesecseesecseecceseesesecseceteesesaesaeeseeaecaeesecaeeeeenaeeeeeaeaes 6 FLOOR CHANGE SEQUENCE for ADVANCING FLOOR RELAYS 7 L2 SCAR CALE S aaah kuma Sah iba 8 TS CALS E tete aene e oen metn rd eaten tg 8 L DIRECTION SELECTION iu tt et e top e ee Ie ee e Pes ee eo E ee ee eo HR Fe EEA 9 LS DIRECTION HOLD ee n ttt ri eme ep Big t beo e AR te cts Ie i Ru APRIRE er MARRE 10 1 62 BIRECTION RUN ertt rer atr eli ace eere Eat ire ee aee esie S iha Eco snteve oevesnchosbetorseetedsc te 10 STARTING Refer to the safety circuits on the schematic esee 10 ACCELERATION See also to Section uusha u trennt aS iE ie E qa 10 DECELERATION See a
5. 8 10 25 OHMS 200 WATT 50 100 250 500 1000 1500 2500 OHMS E2 RELAY PANEL RESISTOR VALUES RESISTORS INC 25 WATT 1 5K OHMS 10 WATT 12K 350 OHMS 2 WATT 1 5K OHMS E3 DYNAMIC BRAKING RESISTOR ASSEMBLY GAL SEE SCHEMATIC PROGRAMMABLE LOGIC CONTROLLER F1 CPU WITH 5 RACK G E IC693CPU311 F2 CPU WITH 10 RACK IC693CPU323 F3 CPU SEPARATE MODULE G E IC693CPU331 F4 MAIN RACK WITH 10 SLOTS G E IC693CHS391 5 EXPANSION RACK WITH 10 SLOTS G E IC693CHS392 F6 EXPANSION RACK WITH 5 SLOTS G E IC693CHS398 F7 POWER SUPPLY G E IC693PWR321 F8 115VAC INPUT MODULE 16 POINT G E IC693MDL240 F9 RELAY OUTPUT MODULE 16 POINT G E IC693MDL940 F10 IN OUTPUT MODULE 8lN 8OUT G E IC693MAR590 F11 24VDC INPUT MODULE 8 POINT G E IC693MDL634 F12 24VDC OUTPUT MODULE 8 POINT G E IC693MDL733 F13 HAND HELD PROGRAMMER G E IC693PRG300 F14 REPLACEMENT BATTERY G E IC693ACC301 MISCELLANEOUS G1 1 W x 2 H DUCT TAYLOR 91020 G2 1 W x 3 H DUCT TAYLOR 91030 G3 1 W DUCT COVER TAYLOR 99010 G4 1 W DUCT MOUNTING CLIPS TAYLOR 08010 G5 WESS GENERATOR REGULATOR WESS G6 NEONS ON RELAY PANEL I D I 1030 G7 VARISTORS SEE SCHEMATIC FOR SIZES G E V150LA2 G8 PUSHBUTTON ON RELAY PANEL ARROW HART 80511E SQ MT9a Virginia Controls Inc Section 5 Page 2 ITEM DESCRIPTION MANUFACTURER PART NO G9 TOGGLE SWITCH ON RELAY PANEL ARROW HART 82601 G10 10 POSITION SELECTOR SWITCH CENTRALAB PA1001 ENCLOSURE H1 CONTROLLER ENCLOSURE PIEDM
6. SQ MT9a Virginia Controls Inc Section 5 Page 3 INDEX of MANUFACTURERS V C I VIRGINIA CONTROLS INC Richmond VA ALL PARTS ARE COMMERCIALLY AVAILABLE FROM THE MANUFACTURER OR FROM VIRGINIA CONTROLS AT 804 225 5530 ASK FOR THE PARTS DEPARTMENT PARTS ARE SUBJECT TO CHANGE WITHOUT NOTICE CONSULT VIRGINIA CONTROLS INC FOR CURRENT PRICING INFORMATION NON STANDARD MATERIAL IS IDENTIFIED ON THE SCHEMATIC SQ MT9a Virginia Controls Inc Section 5 Page 4 6 FIELD DEVICES NOTE When sequences are described for one floor all other floors are similar Refer to the schematic for details on specific Inputs and Outputs and the exact controller wiring Refer also to the PLC for Operating Instructions for the Programmable Logic Controller PLC 6 1 FLOOR SWITCHES SELECTOR If Floor Switches are used then each Floor Switch should have a normally open contact that closes under each of the following conditions 1 the car is at the slowdown point above the floor OR 2 the car is at the slowdown point below the floor OR 3 the car is at the floor optional OR 4 the car is between the slowdown points optional Conditions 1 and 2 are required to change the floor relays and initiate slowdown Condition 3 is required at the terminal landings but is optional at the intermediate landings Condition 4 is optional There are many acceptable methods of providing the floor switch signals such as by having a single Floor Switch
7. Synchronous or Advancing The car doors will operate but the car will not move until the timer is reset by cycling the power or cycling the Inspection Switch NOTE 7 A Leveling Cutout Timer in the PLC cuts out leveling after 15 seconds The car will then stop open the doors if it is in the Door Zone then continue to run in response to other calls 1 7 SLOWDOWN Slowdown is initiated when the Car changes floors and a call is registered at the landing the car has now reached This occurs when the car reaches the Floor Change or Slowdown Point as described in Section 1 1 of this Sequence of Operation At Slowdown the deceleration sequence is initiated as described in Section 1 6 Example 1 The floor relays change at the appropriate floor change point see Section 1 1 Floor Change 2 During the Floor Change the PLC compares the new car position with the registered calls 3 Slowdown will be initiated by a Car Call at the new landing or a Hall Call at the new landing that is in the direction of travel or that is in the opposite direction if there are no further calls ahead of the car 4 The PLC de energizes the fast speed relays s and initiates deceleration as described in the previous section NOTE 1 If the car slows down for Up Hall Call the PLC will energize the Up Direction Indicator to give preference to the Up direction If the car slows down for a Down Hall Call the PLC will energize the Down Direction Indicator
8. The Up led on the D 280 should light and the output voltage at TB2 9 should rise at the rate set by the acceleration pot until the output voltage is the same as the voltage across TB3 21 and TB1 3 When the speed selection jumper TB3 21 is removed the Up led will go out and the output at TB2 9 will decrease to zero at the rate set by the deceleration pot Repeat this procedure for all speeds using the table above to determine the correct jumpers and pot combinations Repeat for the down direction by jumping TB3 35 to TB3 37 to simulate a down run The Down led should light and the polarity of the output at TB2 9 will be reversed SQ MT9a Virginia Controls Inc Section 2 Page 14 TACH LOSS BOARD OPERATION The Drive monitors the tachometer to verify it is operating and will cause the Drive to trip its fault relay if it should fail In addition a separate Tach Loss Board is used to provide a completely separate means of failure detection for the tachometer The Tach Loss Board has inputs from the tachometer and the Armature It compares the signal from these two sources and will trip its fault relay if the difference exceeds a preset amount This would indicate a tachometer failure or that the Drive is not controlling the motor properly The Tach Loss Board also provides an overspeed function On normal operation this trips the fault relay if the car speed exceeds 110 of contract speed but on Inspection operation it trips if the car exceeds 150
9. at floor level and an adjustable length cam on the car or by having two Floor Switches per floor and a fixed length cam on the car The Floor Switches may be mounted on the car if they are in separate rows It is recommended that the method used allow for separate adjustment of the up and down slowdown distances Recommended slowdown distance is about 6 for every 25fpm of car speed for speeds of up to 200fpm Minimum distance for the floor switches to be activated is 1 5 for every 25fpm of car speed NOTE The terminal landing Floor Switches must be maintained while the car is within slowdown distance of the terminal landing The pulsing type Car Top Selector provides Floor Change Slowdown signals and Leveling signals as shown on the CTS sheet in the schematic The signals should be a normally open contact that closes as described below Refer to the schematic to see which signals are required on a specific system 1 UP HIGH SPEED SLOWDOWN set at the High Speed Slowdown distance below the floor DOWN HIGH SPEED SLOWDOWN set at the High Speed Slowdown distance above the floor UP MEDIUM SPEED SLOWDOWN set at 2 Floor Run Slowdown distance below the floor DOWN MEDIUM SPEED SLOWDOWN set at 2 Floor Run Slowdown distance above the floor UP SLOW SPEED SLOWDOWN set at 1 Floor Run Speed Slowdown distance below the floor DOWN SLOW SPEED SLOWDOWN set at 1 Floor Run Speed Slowdown distance above the floor 7 UP AND DOWN LEVEL AND DOOR ZONE LOW LEVEL As
10. ACC2 or DCC1 DCC2 ACCELERATION See also Section 1 6 1 The speed relays close a circuit between TB3 21 and TB3 25 TB3 26 or TB3 27 depending on the selected speed This selects the speed that the S curve generator will ramp to The output of the S curve will gradually rise causing the speed reference signal to the drive speed reference input terminals to rise 2 As the speed reference signal to the drive rises the drive increases the Hoistmotor Armature output voltage causing the Hoistmotor to accelerate 3 The acceleration rate is determined by the adjustment of the S curve generator and the drive acceleration rate The drive acceleration and deceleration pots should be set to give a fast rate that will not interfere with the rate set by the S curve generator See note below 4 The speeds that the car will reach on a One Floor or Multi floor Run are determined by the settings on the speed pots on the S curve generator NOTE 1 The maximum output voltage of the S curve generator is 10VDC Adjust the Max Speed pot on the drive to get contract speed when the speed reference signal is 10VDC Check that the Hoistmotor voltage current is at the proper value to achieve contract speed Adjust the One Floor Run speed to achieve the optimum run on the shortest one floor run The deceleration rates for One Floor Runs and Multi floor Runs are be the same SQ MT9a Virginia Controls Inc Section 2 Page 11 NOTE 2 If the car is going on a On
11. Floor Run or the Up Medium Speed target on systems that reach full speed on a Three Floor Run If the system uses multi floor run circuitry where the car does not reach full speed on a One Floor Run then the Up Slow Speed Selector targets are used to pulse the Synchronous Floor Relays and the Up High or Medium Speed targets are used to reset a lockout circuit that prevents contact bounces from giving false floor changes The operation of the Synchronous Floor Relays can be verified by running the car on Inspection as the Position Indicators will be piloted directly by the Synchronous Floor Relays The Position Indicators should change as the car passes the Up Slow Speed Slowdown target Whenever the car stops the Synchronous Floor Relays will reset the Advancing Floor Relays So if the floor relays change when the car stops then the Synchronous Floor Relays must have been different from the Advancing Floor Relays This could be caused by a missing target or faulty selector contact The operation of the Synchronous Floor relays is omitted from the descriptions at the end of this section for clarity since they will always operate in the same manner as described above The Advancing Floor Relays are used to monitor which floor the car can stop at When the Advancing Floor Relays change the slowdown sequence is initiated if the appropriate call is registered The Advancing Floor Relays are pulsed by the High Speed Slowdown targets for the direction
12. G12 to open before the Speed Selection circuit is energized This prevents a bump at the start of the run 8 P allows the Soft Stop Capacitor GFC2 to charge from terminal G6 ACCELERATION See also Section 1 6 1 1FR if used and FSX close a circuit between G9 and G13 or G15 on the GFC Regulator This selects the speed that the regulator will ramp to The output to the Generator Shunt Field will gradually rise and the output to the Hoistmotor Field will weaken proportionally as the car reaches full speed 2 As the Generator Shunt Field voltage rises the Generator Armature output voltage also rises causing the Hoistmotor to accelerate 3 The acceleration rate is determined by the adjustment of the GFC Regulator Refer to the GFC Manual for complete adjustment instructions 4 The speeds that the car will reach on a One Floor or Multi floor Run are determined by the settings on the speed pots on the GFC Regulator NOTE 1 Adjust the High Speed setting to produce maximum rated voltage on the Generator Shunt Field then adjust the Hoistmotor Field weakening to achieve contract speed Adjust the One Floor Run speed to achieve the optimum run on the shortest one floor run The deceleration rates for One Floor Runs and Multi floor Runs should be the same NOTE 2 If the car is going on a One Floor Run then FSX relay will drop out before the car reaches one floor run speed This allows the car to ramp to the correct speed without a bump
13. INDEPENDENT SERVICE me see oue e E OD DER OU ERE dn RO Rente eU 2 2 3 DIRECTION LANTERNS tert t e ERE ERA PH GRATIE E REI p A e ee eo pee e eye ptg es ese 3 244 EOAD WEIGHING B FEAS S 5 Pe D Re Pn PPP ERES 3 2 5 DUPLEX FEATURES E 3 COMMON CIRGULILS Sa S P iay a S u aS er eee Ee 1 be eg enmt nece ere Eo eR NE En E 3 NEXT CAR UPS cites a ea ore Sead gu 4 CAR START aii fide baa aca Bush aa usa huu a g nace isd esata cab su hu AS h a a tesco hes 4 HOMINQG o east art UU 4 26 gt DUPLEX COMMUNICATION S Seton eec ea m Oe i Beas wanka ega Oe nte ORE 4 COMMUNICATION DATA eene Eee ete e Pa ecce E Ree pedi ues ee ce esce EE 5 2 1 OPEN LOOP REGULATOR OPERATION E e ERR Re C Bep 5 WESS REGULATOR OPERATION u te ir te eter qui Tes Ee a apa asa gue estt exo ente eu fup ieu 5 ACCELERATION SeealsoSection 1 6 a iecit pendere tec eee us 6 DECELERATION See also Section 1 6 and 1 7 6 STOPPING See also Section 1O 6 REREVEL Seesglso Section 18 ut d I dum emt dedu amu 7 M G SET OPERATION STARI S a ee iege guste ig heme e poten tetti eet i te eue eig ue Z STOPPING THE er Re eere e e RUE Su m maa EE AE au 8 2 8 CLOSED LOOP REGULATOR O
14. PLC The Low Level Door Zone Switch must be closed to allow Door Open Fire Service affects Door Open and Close per code requirements Open and Close Timers in the PLC prevent door operation for more than 15 seconds Open and Close Timers in the PLC prevent an immediate reversal of open to close or close to open AUTOMATIC DOOR OPEN WHEN THE CAR STOPS Leveling initiates an internal door open sequence in the PLC The Door Close relay is de energized removing torque from the doors so the doors are set up to open when the car stops 1 When the car stops the PLC energizes the Door Open Output 2 This applies power to the Door Operator Motor and the doors open 3 When the doors get fully open the Door Open Limit de energizes the Door Open Output through the PLC and stops the Door Motor 4 The PLC now holds the doors open for the Door Time This door time may be adjusted as described in Section 3 The factory setting is 5 seconds after the doors have reached the fully open position DOOR CLOSE 1 The PLC will initiate the Door Close sequence after the expiration of the Door Time by energizing the Door Close Output 2 This applies power to the Door Operator Motor and the doors close When the doors are fully closed the Door Close Limit de energizes the Door Close Output through the PLC and power is removed from the Door Operator Motor NOTE 1 With GAL type doors the PLC by passes the Door Close Limit Switch when a direction
15. PLC will de energize the run outputs and the car will stop NOTE 2 If both the 1st and 2nd Car Call Button Inputs are energized the PLC will stop the car If the SQ MT9a Virginia Controls Inc Section 1 Page 15 Inspection Input is energized while the car is running on Inspection the car will stop The car will only return to Automatic Operation when the Inspection Run Buttons have been released and the Inspection Input is on This prevents a feedback button failure or operator error from running the car or returning the car to Automatic Operation SQ MT9a Virginia Controls Inc Section 1 Page 16 2 1 SEQUENCE OF OPERATION SPECIAL FEATURES NOTE When sequences are described for one floor all other floors are similar Refer to the schematic for details on specific Inputs and Outputs and the exact controller wiring Refer also to the G E Manual for Operating Instructions for the PLC FIRE SERVICE OPERATION FIRE SERVICE PHASE 1 HALL Fire Service Phase 1 returns the car to the Main or Alternate Landing when a fire is detected It is initiated by de energizing the Fire Service Input to the PLC by the activation of a Smoke Sensor or by turning the Firemen s Switch in the hall to the ON position The Main Landing Smoke Sensor Input determines whether the car should return to the Main Fire Service Landing if the Input is energized or to the Alternate Fire Service Landing if the Input is de energized The Smoke Sensors can be by
16. apply the residual Generator Armature voltage across the Generator Shunt Field so that it is cancelled or suicided This is a very important circuit since it involves the fail safe operation of the elevator The circuit should be checked periodically for proper operation The contacts in the suicide circuit should be checked regularly for pitting or wear NOTE 9 A Shutdown Timer in the PLC will shut the car down if it runs for more that 30 60 seconds without passing a floor change point Synchronous or Advancing The car doors will operate but the car will not move until the timer is reset by cycling the power or cycling the Inspection Switch NOTE 10 A Leveling Cutout Timer in the PLC cuts out leveling after 15 seconds The car will then stop open the doors if it is in the Door Zone then continue to run in response to other calls NOTE 11 The OSP relay determines what level of overspeed is acceptable With OSP energized an overspeed will occur at 110 of contract speed OSP de energizes when the car doors are open and the car is in the Door Zone so that the overspeed limit is 10 of contract speed NOTE 12 A regulator reset is provided by means of RST relay If the ENX relay de energizes due to a regulator fault then after the car has stopped the PLC energizes RST closing the reset circuit to the regulator The reset signal is held until the regulator resets and ENX energizes If the automatic reset makes four resets in a 15 minute p
17. be cut out but they will not be answered The Independent Service Switch energizes the Independent Service Input to the PLC This initiates Independent Service operation On Independent Service the following changes in operation occur 1 The Hall Calls do not select a direction 2 The Hall Calls do not initiate slowdown SQ MT9a Virginia Controls Inc Section 2 Page 2 The Hall Calls are not cancelled when the car stops All Car Calls are cancelled each time the car stops The doors are held open by the PLC until a Car Call Button or the Door Close Button is pressed The button must be held until the doors have closed fully and the car has started to run or the doors will re open The Direction Lanterns are cut out If Fire Service is initiated and the car is at a floor with the doors open the Audible Visible will energize After 30 seconds Independent Service will be cut out and the car will return to the Main Landing subject to applicable codes If the car was running or the car was at the Main Landing then Independent Service is cut out immediately and the car goes on Fire Service 2 3 DIRECTION LANTERNS Direction Lanterns indicate which direction the car is sets to travel as it stops This is usually selected by the presence of other calls in the system or the fact that the car has stopped to answer a hall call that has established a specific direction NOTE 1 If the car is stopping for a car call only and there are
18. circuit closes On SCR Drive systems it allows the Drive to hold the car at zero speed while the brake sets RUXP or TRUP M G SET RUN TIMER Used with M G sets only Energized preset time after the M G set starts to run It will change the connection of the motor from Y to Delta Recommended setting is 4 8 seconds no adjustment is necessary GENERATOR SERIES FIELD SHUNT WIRE Used with M G sets only Adjust to give proper compounding The Shunt Wire is a coil of 10 14 gauge wire approximately 6 feet long located in the Generator junction box shorten or lengthen wire to change compounding The Shunt Wire is at the same temperature as the generator thus compensating for any resistance change due to temperature change of the generator Refer to the Section 2 for specific information on the various drive systems available Refer also to the manufacturer s instructions for the regulator or drive system used Refer to the PLC Manual for instructions on Maintenance and Troubleshooting for the Programmable Logic Controller PLC 3 2 STANDARD FEATURES Each system is programmed for the particular application Most features are shown on the Title Sheet of the schematic such as Fire Service Car or Hall Lanterns Independent Service etc The following standard features are provided in the programming 1 DOOR OPEN FAILURE TIMER cuts out the Door Open output after 15 seconds allowing the doors to close if the doors fail to
19. described later An extra reset target may be required at each terminal landing See the schematic oa fF N 6 2 SLOWDOWN LIMIT SWITCHES The Terminal Landing Slowdown Limit Switch is a normally closed contact that opens when the car is closer to the terminal landing than the minimum slowdown distance It will prevent the car from running into the terminal landing at full speed NOTE 1 A Terminal Landing Slowdown is required for each fast speed used such as One Floor Run speed Two Floor Run speed Contract speed etc SQ MT9a Virginia Controls Inc Section 6 Page 1 6 3 NORMAL and FINAL LIMIT SWITCHES The Terminal Landing Normal Limit Switch is a normally closed contact that opens when the car has travelled 1 past floor level at the terminal landing The car should not be on the Terminal Landing Normal Limit Switch when the car is floor level at the terminal landing The Limit Switch will prevent the car from travelling further away from the normal area of car travel but allows the car to run back towards the normal area of car travel The Terminal Landing Final Limit Switch is a normally closed contact that opens when the car has gone a considerable distance beyond floor level at the terminal landing It will prevent any further movement of the car in either direction Consult the applicable codes for the proper setting of this switch 6 4 PIT STOP SWITCH The Pit Switch is a toggle switch located within easy reach of the pit f
20. in the acceleration pattern DECELERATION See also Section 1 6 and 1 7 1 Slowdown is initiated at the appropriate floor change slowdown point 2 The PLC de energizes FSX and or 1FR outputs NOTE 3 On a One Floor Run FSX de energizes after the car has run for one second when the Advancing Floor Relays automatically advance and 1FR remains energized to allow the car to accelerate to One Floor Run Speed 3 The GFC Regulator reduces the Generator Shunt Field voltage and raises the Hoistmotor Field voltage causing the car to decelerate 4 FSX and 1FR relays activate the Leveling Switches 5 The car slows down to Approach Speed STOPPING See also Section 1 6 1 The car reaches the Leveling Target and energizes the Up Level Switch 2 The Up Level Switch energizes UL and LV and the PLC Up Level Input LV selects the Leveling Speed reference and the car ramps to Leveling Speed FSR relay is energized on a floor to floor run so the car goes to level speed not relevel speed 3 The car rides onto the Low Level Door Zone Switch and energizes the Low Level Door Zone Input and LL SQ MT9a Virginia Controls Inc Section 2 Page 6 or DZ relay LL or DZ locks out the faster speed reference signals terminals G12 G13 G15 to prevent a shot of acceleration when the car stops and LV drops out NOTE 4 Sufficient slowdown distance should be allowed for the car to reach Leveling Speed before it rides off the Leveling Target an
21. is selected or the car is running This maintains torque on the door while the car is running NOTE 2 The most common cause for door operation problems is the Door Close Limit Switch Some symptoms include excessive door open time incorrect operation on Fire Service or Independent Service door recycling Always check the Door Close Limit operation carefully NOTE 3 On group systems if the doors are cut out such as during start up the car will initiate an internal fault putting the car out of group service which will prevent the car from cancelling calls and may interfere with other dispatching functions SHORTENED DOOR TIME 1 The normal Door Time that is the time that the doors remain open after getting fully open and before SQ MT9a Virginia Controls Inc Section 1 Page 13 beginning to close is 5 seconds This time is adjustable as described in section 3 The Door Time is shortened to 2 seconds if The car is stopping for a Car Call only or The car is stopping for a Hall Call and a Car Call Button or Door Close Button has been pressed since the car stopped at the landing The Door Time is shortened to 1 second if The car is stopping for a Car Call only and the Electric Eye Safety Edge or Door Open Button has been energized or 7 The doors were closing and the Electric Eye Safety Edge or Door Open Button has been energized causing a door re open or The Door Nudging or Load Weighing feature has been act
22. open due to blown fuse stuck operator or other cause ADJUSTABLE DOOR TIME The doors will remain open for a specific period of time after they have stopped opening or after a door open device Door Open Button Safety Edge Electric Eye has been released At the expiration of the door time the doors will start to close The normal Door Time that is the time that the doors remain open after getting fully open and before beginning to close is 5 seconds This time is adjustable SQ MT9a Virginia Controls Inc Section 3 Page 1 10 11 12 The normal Door Time is shortened to 3 seconds if a The car is stopping for a Car Call only or b The car is stopping for a Hall Call and a Car Call Button or Door Close Button has been pressed since the car stopped at the landing The normal Door Time is shortened to 1 second if a The car is stopping for a Car Call only and the Electric Eye Safety Edge or Door Open Button has been energized or b The Electric Eye Safety Edge or Door Open Button has been energized causing a door re open or c The Door Nudging or Load Weighing feature has been activated The normal Door Time is shortened to 0 3 seconds on special operations such as Independent Service Fire Service etc DOOR CLOSE FAILURE TIMER re opens the doors if they fail to close within 15 seconds The doors will be held open for 15 seconds then be allowed to re close This prevents the doors from being held under
23. other calls in the system then the direction will be held by the other calls If no other calls are registered then a Car Call will not energize a direction lantern NOTE 2 If Car Direction Lanterns are used the PLC energizes the lanterns when the car has stopped and the doors have started to open If Hall Lanterns are used the Lanterns will energize when slowdown is initiated If the Lantern is the result of the car stopping for a Hall Call and there are no other calls registered then the Lantern will remain energized until the expiration of the door time and the doors have started to close If there are further calls in the direction of travel then the Lantern will remain energized until the doors are fully closed NOTE 3 If 2 Stroke Down lanterns are provided the PLC energizes the Lantern for 0 5 seconds then cuts out the Lantern for 0 5 seconds then turns the Lantern on again 2 4 LOAD WEIGHING BYPASS The Load Weighing Bypass feature makes the car bypass Hall Calls when the car is full This prevents delays from the car stopping for passengers when it is already fully loaded The car will stop for car calls till the car is empty enough to accept further passengers then it will start answering Hall Calls again The Load Weighing Switch can initiate Load Weighing only when the doors are closing while the car is preparing to start a run This prevents a false signal from the Load Weighing device from initiating Load Weighing while the
24. part numbers shown in the next section If no part number is shown see the schematic SQ MT9a Virginia Controls Inc Section 4 Page 1 5 PARTS LIST ITEM DESCRIPTION MANUFACTURER PART NO RELAYS AND TIMERS A1 3PDT 120VAC PLUG IN RELAY P amp B KUP 14A35 120 A2 3PDT 110VDC PLUG IN RELAY P amp B KUP 14D35 110 A3 3PDT 120VAC SILVER CONTACTS P amp B KUP 14A31F 120 A4 3PDT 24VDC PLUG IN RELAY P amp B KUP 14D35 24 A5 SURFACE MOUNT SOCKET FOR ITEM A1 4 P amp B 27E893 A6 PANEL MOUNT SOCKETS FOR ITEMS A1 4 C C C CM11LSLD AT 4PDT 120VAC PLUG IN RELAY P amp B KHAU17A12FN 120 A8 4PDT 120VDC PLUG IN RELAY P amp B KHAU17D12N 110 A9 SURFACE MOUNT SOCKET FOR ITEM A7 8 C C C MT 14 PC A10 FIELD LOSS CONTACTOR WARD LEONARD 146 500 or 146 1500 A11 PHASE MONITOR VA CONTROLS PH MON A12 TIMER MODULE 0 102 3 SECONDS ICMC TMMS T1131 CONTACTORS AND OVERLOADS SEE SCHEMATIC FOR CONTACTOR SIZES B1 REVERSING CONTACTOR SIZE _ FURNAS 43 P32AAE B2 STARTER SIZE FURNAS 15 F32AF B3 STARTER with SCR DRIVE SIZE FURNAS GE SEE SCHEMATIC B4 MOTOR OVERLOAD FURNAS 48__ 1 4 5 LOOP OVERLOAD FURNAS 48__ 11 4 B6 2 POLE N O 120VAC COIL FURNAS 41NB20AFP B7 3 POLE N O 120VAC COIL FURNAS 41NB30AFP B8 POLE 2 N 0 1 N C 120VAC COIL FURNAS 41NB21AFP B8 POLE 2 N 0 1 N C 120VAC COIL FURNAS 41NB21AF36P B9 DYNAMIC BRAKING CONTACTOR SIEMENS 14 193 752 587 TRANSFORMERS FUSES AND TERMINALS C1 460 230 208 230 115V 600VA MICRON CNX60
25. that the car is travelling in If multi floor run circuitry is used then the advancing floor relays will automatically advance as the car starts to run If the car can reach full speed on a two floor run then the Advancing Floor Relays will advance once but if the car can reach full speed on a three floor run then the Advancing Floor Relays will advance twice NOTE The Synchronous and Advancing Floor Relays are reset at either terminal landing If the Up Slow Speed Slowdown Switch and the Low Level Door Zone Switch are energized at the same time this will reset the floor relays to the Top Landing If the Down Slow Speed Slowdown Switch and the Low Level Door Zone Switch are energized at the same time this will reset the floor relays to the Bottom SQ MT9a Virginia Controls Inc Section 1 Page 6 Landing If a Main Landing Reset Switch is used this will reset the Synchronous Floor Relays to the Main Landing whenever it is energized It is recommended that a Main Landing Reset Switch be used when the bottom landing is seldom used NOTE The Position Indicators are driven by the Advancing Floor Relays if the car can reach full speed on a two floor run or less if the car speed is less than 350fpm otherwise they are driven by the Synchronous Floor Relays FLOOR CHANGE SEQUENCE for ADVANCING FLOOR RELAYS Example 1 with no Multi Floor Run circuitry 1 2 The car starts to run down The car passes an Down Slowdown Target The Advancin
26. 0MBT1318 HD C2 460 230V 3KVA JEFFERSON 211 101 C3 250V INSTANTANEOUS FUSE LITTELFUSE Type BLF C4 250V FUSEHOLDER FOR ABOVE FUSE CURTIS PW1F C5 TRACK FOR 250V FUSEHOLDERS CURTIS SW192 C6 600V TIME DELAY FUSE GOULD Type FRN C7 600V FUSEHOLDER FOR ABOVE FUSE TAYLOR 60300 60301 C8 3 POLE TERMINAL 600V 50AMP CURTIS 3PSWT C9 MOUNTING TRACK FOR TERMINALS CURTIS SW192 C10 15VDC POWER SUPPLY POWER ONE HAD 15 0 4 A CAPACITORS AND RECTIFIERS D1 PANEL MOUNT CAP 20 20 40uf 250VDC MALLORY FP321 D2 PANEL MOUNT CAPACITOR 100uf 250VDC MALLORY FP321 D3 MOUNTING BRACKETS FOR D1 D2 C D E 19884 D4 AXIAL LEAD CAPACITOR 8uf 150VDC C D E WBR 8 150 D5 AXIAL LEAD CAPACITOR 20uf 150VDC C D E WBR 20 150 SQ MT9a Virginia Controls Inc Section 5 Page 1 ITEM DESCRIPTION MANUFACTURER PART NO D6 AXIAL LEAD CAPACITOR 40uf 150VDC C D E WBR 40 150 D7 AXIAL LEAD CAPACITOR 100uf 150VDC C D E WBR 100 150 D8 AXIAL LEAD CAPACITOR 200uf 150VDC C D E WBR 200 150 D9 130uf 330VAC CAPACITOR AEROVOX PSU12430A 010 320uf 450VAC CAPACITOR MALLORY HC45003 D11 1 PHASE IDLER DIODE COUGAR SA 5880 D12 3 PHASE FULL WAVE BRIDGE COUGAR SKD 25 12 D13 1 PHASE FULL WAVE BRIDGE COUGAR SKB 25 12 014 1 PHASE F W B HIGH CURRENT COUGAR SA3826A D15 1 PHASE F W B LOW CURRENT COUGAR S912 D16 BLOCKING DIODE RELAY PANEL COUGAR S520 RESISTORS PART NUMBER IS RESISTANCE AND WATTAGE SEE THE SCHEMATIC E1 POWER PANEL RESISTOR VALUES RESISTORS INC 375 WATT 4
27. 1 is OFF And Point 2 is ON the car is CANCELLING DOWN HALL CALLS And Point 3 is ON the car is on FIRE SERVICE PHASE 2 And Point 4 is ON the car is HOMING RUNNING or at the MAIN LDG And Point 5 is ON the car is IN SERVICE And Point 6 is ON add 2 to determine FLOOR POSITION And Point 7 is ON add 8 to determine FLOOR POSITION And Point 8 is ON add 32 to determine FLOOR POSITION NOTE 1 The Car Position Points 6 8 is in Binary code To determine the car position add the landing values together For example if the car communication lights for Binary 1 and Binary 2 are both on then the car is at the 3rd landing In some cases the Binary code used will be the same as that used for the Position Indicator outputs In this case decode the floor value by consulting the chart on the schematic NOTE 2 If the Data light Points 2 8 is flashing in sequence with Point 1 then the Data from the FIRST GROUP is true If the Data light Points 2 8 is flashing out of sequence from Point 1 then the Data from the SECOND GROUP is true If the Data light Points 2 8 is on all the time then the Data from the first and second groups is true NOTE 3 This description applies to the operation of the Inputs and the Outputs The Outputs will show the status of the Microprocessor for that Elevator and the Inputs will show the status for the other Elevator 2 7 OPENLOOP REGULATOR OPERATION The WESS Regulator controls the Generator Shunt Field Hoistmo
28. Direction Lanterns The Direction Indicator Lights are 115VAC 6 28 DIRECTION LANTERNS The Direction Lanterns are located either in the door jamb of the car Traveling Lanterns or in the hall stations at each landing Hall Lanterns They will indicate the car is stopping for a call and also the direction that the car is set to run next This is similar to the Direction Indicator Lights except that they only come on when the car is stopping for a call The Hall Lanterns for a particular landing are lit when the car initiates slowdown at that landing and are extinguished when the doors close The Traveling Lanterns are lit when the doors have started to open after the car has stopped for a call and are extinguished when the doors close If specified circuitry may be provided to sound the Down Direction Lantern twice providing two strokes on the associated gong to indicate the difference between an Up traveling car and a Down traveling car The Direction Lanterns are 115VAC 6 29 LIGHT UP BUTTONS Light Up Buttons are usually provided for Car and Hall Calls They indicate that a call has been registered and are extinguished when the call is answered The Light Up Buttons are 115VAC 6 30 PASSING GONG The Passing Gong is mounted in the car usually as part of the Car Position indicator and it sounds each time the car passes a floor This enables passengers to determine the location of the car by counting the pulses on the Passing Gong The P
29. ONT SIZE H2 STARTER ENCLOSURE PIEDMONT SIZE SCR DRIVE MATERIAL I1 S CURVE GENERATOR IPC D 280 12 TACH LOSS SENSOR POWER SUPPLY SCR 127 101 I3 TACH LOSS SENSOR MAIN BOARD SCR 127 103 14 SCR REGENERATIVE DRIVE EMERSON SWEO SEE SCHEMATIC INDEX of MANUFACTURERS ARROW HART ARROW HART INC Hartford CT BURNDY BURNDY CORP Norwalk CT BUSS BUSSMAN MFG DIV St Louis MO C C C CUSTOM CONNECTOR CORP Cleveland OH C D E CORNELL DUBILIER ELECTRONICS Newark NJ CENTRALAB CENTRALAB Milwaukee WI CLADDAGH CLADDAGH ELECTRONICS LTD Long Island City NY CLAROSTAT CLAROSTAT MFG CO INC Dover NH COUGAR COUGAR ELECTRONICS CORP Brooklyn NY CURTIS CURTIS INDUSTRIES INC Milwaukee WI DELTROL DELTROL CORP Milwaukee WI FURNAS FURNAS ELECTRIC COMPANY Batavia IL G E GENERAL ELECTRIC COMPANY Charlottesville VA GOULD GOULD SHAWMUT CO Marble Falls TX ICMC INTERNATIONAL CONTROLS AND MEASUREMENT CORP NY IDEC IDEC SYSTEMS and CONTROLS CORP Santa Clara CA IDI INDUSTRIAL DEVICES INC Edgewater NJ LITTELFUSE LITTELFUSE INC Des Plaines IL MALLORY MALLORY CAPACITOR CO Indianapolis IN OMRON OMRON CORP of AMERICA Chicago IL O THOMPSON O THOMPSON INC Woodside NY PIEDMONT PIEDMONT METAL FABRICATORS Culpepper VA P amp B POTTER amp BRUMFIELD RAM RAM TRANSFORMER CORPORATION Chatham NJ RESISTORS INC RESISTORS INC Chicago IL SMITH H H SMITH INC Brooklyn NY SSAC SSAC INC Liverpool NY TAYLOR TAYLOR ELECTRIC PRODUCTS Marble Falls TX
30. Open Button opens the doors fully on Fire Service Phase 1 if the doors are already partially open and opens the doors with constant pressure on Fire Service Phase 2 6 14 DOOR CLOSE BUTTON The Door Close Button provides a normally open contact that closes when the door Close Button is pressed It shortens the door time in preparation for responding to the call 6 15 CAR CALL BUTTONS The Car Call Button is a double pole single throw momentary type pushbutton in the car station One button is provided for each opening and the button is usually an illuminated button Both poles of the button close when the button is pressed One pole registers the call and shortens the Door Time and the second pole will close the doors on Fire Service Phase 2 if itis connected in parallel with the Door Close Button 6 16 HALL CALL BUTTONS The Hall Call Button is a single pole single throw momentary pushbutton located in each hall station as required The button is usually illuminated The contact in the pushbutton closes when the button is pressed 6 17 UP LEVEL SWITCH The Up Level Switch provides a normally open contact that closes when the car is between 1 4 and 9 below floor level The Up Level Switch initiates stopping and re leveling in the Up direction The distance before the floor that the Up Level Switch energizes determines the length of the Leveling Zone and should be about 9 The car will ramp from Approach Speed to Leveling Speed at this
31. PERATION reie aI AI ener etre A EAE A etre 8 REGULATOR OPERATION tette a tenerae tere ries ede a De evi eb v ter eres see fec eere td eerte repe Tae Shes cue ahi ete 8 ACCELERATION Seealso Section 1 6 deceret eeepc erase ede nta celeste 9 DECELERATION See also Section 1 6 and 1 7 sss 9 STOPPING See also Section 1 6 RR 9 RELEVEL See also Section 1 8 ct S Sage Sa L eae k u u m a dent in ie 10 SQ MT9a Virginia Controls Inc Section 1 Page 2 GOSET OPERATION u tepore tiep dat ete a e eel decet T 10 IPC OPEN EOOP OPERATION I et RH e REPE ton E RUNI ES HER e CHER EE 10 2 9 SGRSTATIGDRIVEOPBERNXATION tete ette ottiene apti e tete tete e 10 DRIVE OPERATION ete ester t e e e tee ebat he e e M eret ertt eee a eee eee edunt 11 ACCELERATION See alsoSection 1 6 tte t aee tute dne tien 11 DECELERATION See also Section 1 6 and 1 7 12 STOPPING See also Section 1 6 5 3 p RE e eed a e Se Le ES ges 12 RELEVEE See als Sectlion 1 8 5 ot Be e a ee e e et n e es 12 DYNAMIC BRAKING 4 2 testem reti tere estet een ele raa ete iere ee tet 12 IMPORTANT DRIVE NOTES iz nice e e RU erem e Re o ed 12 IPC D 280 S CURVE GENERATOR ADJUSTMENTS 0 0 ccccsccssseseesseeecuseescnseeseesecseesecseeecceeseesecseeseceveeceeeeceseeseeaeseeeecaserenaeerea
32. The other car is not homing 2 6 DUPLEX COMMUNICATION Communication between each car is achieved through the Input and Output Modules That is the Communication Outputs on Elevator A are connected to the Communication Inputs on Elevator B and similarly the Communication Outputs from Elevator B are connected to the Communication Inputs on Elevator A A Multi plexing system is used to allow the communication of more than just the 8 Input Output points This operates as follows The Output Point 1 turns on and off regularly to sequence the data transfer The program now can transmit two pieces of data on each output point one piece when Point 1 is ON and one piece when Point 1 is OFF The Microprocessor receiving data will monitor Point 1 and check the status of each other Communication Point just SQ MT9a Virginia Controls Inc Section 2 Page 4 after Point 1 goes ON also just after Point 1 goes off If Point 1 is not going on and off then the program assumes the other Microprocessor is out of service COMMUNICATION DATA If Point 1 is ON And Point 2 is ON the car is CANCELLING UP HALL CALLS And Point 3 is ON the car is stopped at the MAIN LDG And Point 4 is ON the car is NEXT at the MAIN LDG And Point 5 is ON the car has NO CALLS BEHIND IT Back Calls And Point 6 is ON add 1 to determine FLOOR POSITION And Point 7 is ON add 4 to determine FLOOR POSITION And Point 8 is ON add 16 to determine FLOOR POSITION If Point
33. as shown below Note that the car must be going in the appropriate direction to be able to cancel the SQ MT9a Virginia Controls Inc Section 1 Page 8 call Individual Hall Calls are cancelled when the car slows down for the call at the appropriate floor or reopens its doors at the same floor as the Hall Call provided the car is going in the same direction as the call All calls are cancelled when the car is on Fire Service or on Shutdown Simplex systems will also cancel all Hall Calls on Inspection Operation Example 1 1 The car is not at 1 and 1U Hall Call is registered 2 1U Hall Call Button is pressed energizing the 1U Hall Call Input 3 The PLC holds the call and turns on the 1U Hall Call Light 4 The PLC initiates the run to the 1st landing to answer the call 5 The car slows down at the 1st landing in response to the 1U call 6 The PLC cancels the call when slowdown is initiated 7 The 1U Hall Call Light goes out 8 The doors will open in response to the call when the car stops Example 2 1 The car is at the 1st landing and 1U is energized 2 1U Hall Call Button is pressed energizing the 1U Hall Call Input 3 The PLC holds the call and turns on the 1U Hall Call Light 4 The PLC initiates the Door Open cycle and cancels the call 5 The 1U Hall Call Light goes out NOTE 1 On Duplex systems the Hall Call Buttons are connected to the Input Modules of BOTH cars so that both cars will register each call They w
34. assing Gong is 115VAC 6 31 FIRE SERVICE LIGHT The Fire Service Light is located in the car and hall stations and is lit when the car is on Fire Service Phase 1 or 2 The Fire Service Light is 115VAC 6 32 FIRE AUDIBLE VISIBLE SIGNAL The Fire Service Audible Visible Signal is located in the car station and is energized when the car is on Fire Service Phase 1 and the car is returning to the main landing or it is on Inspection operation The signal indicates that Fire Service is initiated and that the car should be allowed to return to the main landing if it is being held for any reason The Fire Service Audible Visible Signal is 115VAC SQ MT9a Virginia Controls Inc Section 6 Page 5
35. ault relay indicating it is ready to run which closes the safety circuit on the main controller This allows the direction run relays on the main controller to energize when a direction is established and the doors are closed When the Direction Run relays energize the UDT and UDTX relay contacts close the start signal on the Drive This will energize the main contactor on the SQ MT9a Virginia Controls Inc Section 2 Page 10 Drive An auxiliary contact of this contactor allows the Brake contactors to lift so that the Drive is now controlling the movement of the car The Drive will cause the car to run in the direction and at the speed set by the Speed Reference Input from the D 280 S curve generator The S curve generator produces a ramped and rounded profile determined by the speed acceleration and deceleration settings of its pots See the schematic for a description of each pot The following description covers all SCR Static Drive installations Specific notes for a particular installation will be found in the adjustment sheets that are part of the schematic for that job and also in the Drive Manual provided with the job DRIVE OPERATION UP RUN Down direction is similar See also Section 1 6 1 The car is about to run up The Drive is on The doors are closed and all other Safety Devices are closed 2 The PLC turns on the Up Run Output 01 2 UX relays Fast Speed Run Output FS relay and One and Two Floor Run Output 1FR 2FR r
36. car is accelerating or running NOTE 1 On computerized group systems Load Weighing will also cancel any remaining door time at the Main Landing allowing a fully loaded car to leave immediately 2 5 DUPLEX FEATURES The Duplex System will keep one car at the Main Dispatch Landing or Lobby as the Lobby Car and allow the other car or the Free Car to stop at it s last call The Lobby Car will answer calls at the Lobby and the Free Car will answer all other calls Once the Lobby Car leaves the Lobby it will answer all calls it passes The Lobby Car may leave the lobby to assist the Free Car under various load conditions as described below under Start Control COMMON CIRCUITS Several circuits on a Duplex System need to be energized when either car is on These include the Hall Calls Fire Service and some other circuits that may be required for a particular job such as Emergency Power Hospital Service etc These circuits get their power from either car by means of the VR relay 1 If Elevator A is powered up then VR is energized VR Normally Open contacts connect the common feed to the 115VAC for Elevator A SQ MT9a Virginia Controls Inc Section 2 Page 3 2 If Elevator is not powered up then VR is not energized VR Normally Closed contacts connect the common feed to the 115VAC for Elevator B NEXT CAR UP When both cars are at the Lobby the first car to arrive there is designated as the Next Car Up The Next Car Up will an
37. cing Floor Change lockout Repeat steps 3 and 4 for each floor until the car stops NOTE 4 The One Floor Run slowdown distance is less than half the shortest floor height The Full Speed Run slowdown distance is less than half the shortest distance between two adjacent floors NOTE 5 On Inspection operation the initial false advancing pulse is not used and the Advancing and Synchronous floor relays pulse from the Up Slow and Up High Speed Selector targets Example 3 with Full Speed on a Three Floor Run 1 2 The car starts to run down After the car has been running for approximately one second the Advancing Floor Relays automatically advance to determine whether the car will go on a one floor run This will initiate the slowdown sequence if the appropriate call exists After the car has been running for approximately two seconds and if a slowdown was not initiated in step 2 then the Advancing Floor Relays automatically advance a second time to determine whether the car will go on a two floor run This will initiate the slowdown sequence if the appropriate call exists The car passes a Down Slow Speed Slowdown target which would start the actual slowdown sequence for a one floor run then a Down Medium Speed target which would start the actual slowdown sequence for a two floor run The Advancing Floor Change lockout is now reset The car passes a Down High Speed Slowdown target which pulses the Advancing Floor Relays and
38. cling the Inspection Switch NOTE 7 A Leveling Cutout Timer in the PLC cuts out leveling after 15 seconds The car will then stop open the doors if it is in the Door Zone then continue to run in response to other calls RELEVEL See also Section 1 8 The sequence on a relevel is the same as a normal run except the FSR relay is not energized and the PLC prevents the fast speed outputs from energizing so the speed is set to relevel speed since terminal G11 is energized M G SET OPERATION START The starting of the M G set is normally initiated by MGP relay Any demand or anticipated demand for the elevator will energize MGP which then initiates the Start sequence of the M G set When the M G set is up to speed the car can run Any of the following conditions will cause the PLC to energize MGP relay 1 2 3 4 5 The car is on Inspection Operation OR The car is on Fire Service Phase 2 OR The car moves onto one of the Leveling Switches OR A direction is selected by a call being registered OR The doors open in response to a call When MGP energizes the MG Set will start as follows 1 2 3 MGP energizes MGX which energizes MG which energizes STR STR starts the M G set in the Y or Star configuration After the time delay set by RUXP timer which should be sufficient to allow the M G set to get up to speed RUXP timer energizes RUX RUX de energizes STR and energizes RU SQ MT9a Virginia Controls I
39. control car movement 7 The Speed Selection relays select the speed for the drive system 8 BK1 and 2 lift the Brake 9 The Leveling Switches are cut out ACCELERATION See also to Section 2 1 The Speed Selection Relays FS 1FR 2FR etc will select the speed that the system will ramp to 2 With M G sets the output to the Generator Shunt Field will gradually rise As the Generator Shunt Field voltage rises the Generator Armature output voltage also rises causing the hoistmotor to accelerate SQ MT9a Virginia Controls Inc Section 1 Page 10 With SCR Drives the S curve Generator output will ramp up causing the drive to increase the Hoistmotor Armature output and the car to accelerate at the rate set by the acceleration pot on the S curve generator The speeds that the car will reach on a One Floor or Multi floor Run are determined by the settings on the drive system speed pots NOTE 1 With M G sets adjust the High Speed setting to produce maximum rated voltage on the Generator Shunt Field then adjust the Hoistmotor Field weakening to achieve contract speed NOTE 2 Adjust the One Floor Run speed to achieve the optimum run on the shortest one floor run Adjust the Two Floor Run speed to achieve the optimum run on the shortest two floor run NOTE 3 If the car has multi floor run circuitry and is going on a run that will not reach full speed then the Fast Speed relay will drop out before the car reaches one or two fl
40. d attempts to stop This allows for a more controlled stop The car rides off the Up Level Switch which de energizes UL and LV relays and the Up Level Input The PLC de energizes the Up Run Output which de energizes up run relays U P PX de energize immediately The capacitance stored in GFC2 capacitor is applied across the Generator Shunt Field to provide an electric stop This allows for a soft stop while the brake is setting The GFC Regulator drops the voltage to the Brake causing the brake to drop softly After a brief time delay approximately 1 second UDT and UDTX will de energize This de energizes BK1 and BK2 and energized SU The suicide circuit is now completely closed and the brake circuit opened NOTE 5 The suicide circuit connects the Generator Shunt Field across the Generator Armature in such a way as to apply the residual Generator Armature voltage across the Generator Shunt Field so that it is cancelled or suicided This is a very important circuit since it involves the fail safe operation of the elevator The circuit should be checked periodically for proper operation The contacts in the suicide circuit should be checked regularly for pitting or wear NOTE 6 A Shutdown Timer in the PLC will shut the car down if it runs for more that 30 60 seconds without passing a floor change point Synchronous or Advancing The car doors will operate but the car will not move until the timer is reset by cycling the power or cy
41. d on car speed and the desired slowdown rate and will vary will the responsiveness of the drive system Standard distances are shown in the table below CAR SPEED RECOMMENDED MINIMUM IN FPM SLOWDOWN SLOWDOWN UNDER 200 1 per 50FPM 1 per 50FPM 200 4 6 4 0 250 5 6 5 0 300 7 0 6 6 350 8 6 7 6 400 10 0 9 0 450 11 6 10 6 500 13 0 12 0 600 16 0 15 0 NOTE If multi floor run circuitry is used then the One Floor Run Slowdown distance is approximately half the shortest floor height and the Two Floor Run distance is approximately equal to the shortest floor height SQ MT9a Virginia Controls Inc Section 1 Page 5 FLOOR CHANGE with FLOOR SWITCHES 1 The previous Position Indicator is on as the car starts to run 2 When the car reaches the Slowdown Point before the next landing the Floor Switch for the next landing closes The Floor Switch energizes appropriate Floor Switch Input 4 The Floor Switch Input changes the internal floor relays A slowdown would be initiated now if the appropriate call had been registered 5 The PLC de energizes the Position Indicator Output for the previous landing and energizes the Position Indicator Output for the new landing 6 The Floor Change sequence is complete NOTE 1 One Floor Switch Input is required for each landing The Landing Switches should be set to close at the Slowdown Distance before the floor It is recommended though not essential that the Floor Switch b
42. dicator or perhaps the Position Indicator Light has burned out Similarly with Input points check that the Input Module light is on that there is power at the terminal and if not then the problem is external If it is determined that the problem is with the PLC then the terminal block can be unplugged from the module and a new module should be installed in its place If this does not correct the problem the Power Supply Rack or the CPU module could be faulty If the CPU fails it will probably turn off its RUN or OK light due to internal checking features The CPU and other modules can be affected by high transient surges in the power supply such as the building being hit by lightning This may damage the CPU or alter the contents of the program Cycling the power and leaving the power off for at least 5 seconds will cause the CPU to reload the program from the PROM chip which may correct the problem IMPORTANT IF TROUBLESHOOTING ASSISTANCE IS REQUIRED FROM VIRGINIA CONTROLS GET THE FOLLOWING INFORMATION BEFORE CALLING 1 AN EXACT DESCRIPTION OF THE PROBLEM 2 THESTATUS OF ALL THE INPUT AND OUTPUT POINTS 3 5 FEATURE ADJUSTMENT Various settings can be changed in the field such as Door Times Fire Service Return Landings Shutdown Times etc For a complete description of the Field Adjustment procedure see the separate instructions for this operation NOTE The procedure may be different for each job so do not assume
43. down due to running for too long a period of time without passing a floor see above may be used to turn on a light to alert building personnel that the battery should be changed The battery will drain quicker if the power is turned off so it is recommended that the controller power be left on whenever possible 4 Field connections should be in accordance with the user s manual page 3 39 Refer to the schematic to determine which wires are connected directly to the I O modules and which are connected to terminals NOTE It is essential that all wiring is connected to the correct Input or Output point It may be necessary to temporarily remove a factory wire from one of the I O modules when connecting the field wiring If this is done be sure to return the factory wire to the correct place NOTE It may be easier to connect the field wiring with either the module or the terminal board removed see pages 3 34 to 3 39 NOTE The terminal numbers do not correspond to the Input Output reference numbers The schematic shows the terminals and the reference numbers The indicator lights show the Input Output reference numbers The top line of lights is for Group A Inputs Outputs the bottom line is for Group B Inputs Outputs See the schematic or module label to match the Input Output number to the proper terminal number 5 Refer to the user s manual pages 3 34 and 3 35 for the proper procedure for removing Input or Output cards If an Input o
44. e 2 is initiated when the car is on Fire Service Phase 1 has stopped at the designated Fire Landing and the Car Fire Switch is turned to the On position Fire Service Phase 2 is held until the car has returned to the Main Landing the doors are open and the Car Fire Switch is turned to Off NOTE 3 Operation on Fire Service Phase 2 may vary depending on the applicable codes The operation described here is the standard ANSI National Code On Fire Service Phase 2 the following changes in operation occur 1 The Stop Switch By pass is cancelled 2 The Car Calls are re activated All Car Calls are cancelled each time the car stops or when the Fire Call Cancel Button is pressed or when the doors are fully open and the Car Fire Switch is turned to Hold or when the doors start to open 3 The doors are opened by constant pressure on the Door Open Button If the Door Open Button is released before the doors are fully open the doors will re close If the doors are opened fully they will stay open until closed by the Door Close Button The doors are closed from the fully open position by constant pressure on the Door Close Button If the Door Close Button is released before the doors are fully closed the doors will re open fully 4 If Fire Service Phase 1 is still on and the doors are fully open and the car is not at the designated fire landing and the Car Fire Switch is turned to the Off position then the doors will automatically close Once t
45. e Floor Run then FS relay will drop out before the car reaches floor run speed This allows the car to ramp to the correct speed without a bump in the acceleration pattern DECELERATION See also Section 1 6 and 1 7 1 Slowdown is initiated at the appropriate floor change slowdown point 2 The PLC de energizes the fast speed relays FS 1FR 2FR etc NOTE 3 With multi floor circuitry on a One Floor Run FS de energizes after the car has run for one second when the Advancing Floor Relays automatically advance and 1FR remains energized to allow the car to accelerate to One Floor Run Speed Two floor runs are similar 3 The S curve generator ramps the output voltage down to the setting for Approach Speed causing the car to decelerate The deceleration rate is set by DCC1 or DCC2 pots on the S curve generator 4 The car slows down to Approach Speed STOPPING See also Section 1 6 1 The car reaches the Leveling Target and energizes the Up Level Switch 2 The Up Level Switch energizes UL and LV and the PLC Up Level Input LV selects the Leveling Speed reference and the car ramps to Leveling Speed NOTE 4 Sufficient slowdown distance should be allowed for the car to reach Leveling Speed before it rides off the Leveling Target and attempts to stop This allows for a more controlled stop The car rides off the Up Level Switch which de energizes UL and LV relays and the Up Level Input 4 The PLC de energizes the Up Run Ou
46. e for the preset time 14 HALL CALL HELP OUT TIMER The car is allowed to leave the Main Floor if the other car of the Duplex is not able to answer all the calls in 90 seconds Additional features may be provided as required by the particular job specifications and as shown on the schematic 3 3 INSTALLATION NOTES 1 Refer to the Programmable Logic Controller PLC User s Manual for a complete description of hardware 2 The system has been programmed and tested for the specific elevator system so no further changes should be made without consulting with Virginia Controls Power connections to all devices have already been made by Virginia Controls 3 Before applying power to the Programmable Controller verify that the voltage to terminals 1 and 35 is 110 125VAC When power is turned on to the Programmable Controller the POWER OK and RUN lights on the CPU should come on The CPU memory is PROM Programmable Read Only Memory so does not require the battery to maintain it The battery is required to hold some retentive coils in the CPU during a power failure The battery has a life of between 2 and 5 years When it is about to fail the BATTERY light on the Power Supply module will go on The battery must now be changed as described in the user s manual NOTE To provide proper warning of a failing battery the controller may turn on the Shutdown Output when the battery is low The Shutdown Output which will also come on if the car shuts
47. e maintained while the car is in the Slowdown Zone The Terminal Landing Floor Switches must be closed when the car is floor level at the Terminal Landings Approximate Slowdown Distances can be estimated based on 6 of Slowdown for each 25fpm of car speed for speeds up to 200fpm Adjacent Floor Switches should not be energized at the same time If any two floors are closer together than twice the required slowdown distance then special Short Floor programming is required to handle this condition FLOOR CHANGE with PULSING SELECTOR Two sets of Floor Relays are used with pulsing selectors One set monitors the actual position of the car called the Synchronous Floor Relays and the other set monitors the floor that the car can stop at called the Advancing Floor Relays The Synchronous Floor Relays are pulsed up and down by the Up Slowdown Selector targets and the direction relays That is if the car runs up past an Up Slowdown Target the Synchronous Floor Relays will be pulsed up one floor and if the car runs down past an Up Slowdown Target the Synchronous Floor Relays will be pulsed down one floor The only exception to this is at the top terminal landing where the Up Slow Speed Slowdown target has been stretched to provide an actual position reset In this case the first pulse down is provided by the Down Slowdown target on systems that reach full speed on a One Floor Run or the Up High Speed target on systems that reach full speed on a Two
48. ees 13 STATIC TEST PROCEDURE FOR D 280 S CURVE 14 TACH LOSS BOARD OPERA TIO Nizd eem dle et tt bue eor i ee dealer desee edente 15 TACH LOSS BOARD ADJUSTMENTS aa al an a u l E EE ensi teinte a au ala 15 CONTROLLER ADJUSTMENTS AND INSTALLATION NOTES 1 Sy T ADJ STMENIS 3 seas annus ut o ru eres 1 32 STANDARD FEATURE S oieri e n a EN EEEE OR PER ER ERR EC CU Heda we ERU EE Fi LESE RS 1 SIS INSTALLA TION NOTES Saa ppc dea neat eme batte ne eet 3 34 TROUBEESHOOTING 2 bo eaque o enin detiene emiten tnde 4 S S EEATURE ADJUSTMENT note pham RO o herum RO Po aur PRODR herum es 4 RESET FACTORY DEFAULT SETTINGS rriren i TE EEEE E E E E EE ORE T A ER EE TORE TE A 4 CONTROLLER NOMENCLATURE J aasan i Es tatus e a EEES E ES EEES EEEE E E E E 1 PARTS GST T TET E E T A E E AEST E EAR 1 FIELD 1 6 1 ELOORSWITCHES SBEEECTOR oaa oa hak eios 1 6 2 SEOWDOWN LEIMIESWITCHES aa ere e E RE ean eae ag esta eee eemper 1 6 3 NORMAL AND FINAL LIMITS WITCHES I ETHER E ER 2 6 4 PITS TOPS WELCH y pasu saus ies Ss Sec ake oe es
49. elays if used 3 The run relays will energize UDT and UDTX which give a contact closure to the Enable circuit on the drive This energizes the main drive DC contactor 4 An auxiliary of this contactor closes indicating the drive loop is closed and that the drive is now controlling the motor and will cause it to run in the direction and at the speed set by the speed reference input voltage signal received at terminals TB1 21 and TB1 23 5 When the drive contactor closes and the Loop Closed signal is sent back to the controller and allows BK1 and BK2 to lift the Brake 6 The Hoistmotor Field current rises from standing to running current The Hoistmotor field supply on the drive is in the Current Regulating mode so the drive will adjust the voltage to give the required current in the field thus providing the same amount of torque under any temperature condition 7 The speed relays FS 1FR 2FR etc close a contact between TB3 21 and TB3 22 to 27 on the S curve generator This sets the speed that the S curve generator will ramp to 8 UDTX closes the S curve Run signal between TB3 35 and TB3 36 37 for down The S curve now starts to increase the voltage output at terminals TB2 9 and TB1 3 from zero to the voltage set by the speed contact The profile of the output is determined by the settings on the S curve generator including the rounding pots P1 P4 the speed pots SP1 SP5 and the appropriate acceleration or deceleration pots ACC1
50. emain shutdown until it is reset by momentarily putting the car on Inspection or by stopping the PC or by cycling the Main Line Disconnect If the car is floor level or close to floor level when it has shutdown then the most likely cause is the Brake Fault timer If the car is between floors then the most likely cause is the Running Shutdown Timer NOTE Both these timers will cause the car to be shutdown The cause of the problem should be determined before the car is put back in service INDEPENDENT SERVICE CUTOUT TIMER cuts out Independent Service after 30 seconds if the car is stopped with the doors fully open and Fire Service has been activated DIRECTION PREFERENCE Direction Preference for Hall Calls is maintained for 4 seconds after the doors have started to close allowing a passenger entering the car to have preference in establishing the next direction of travel if the car had no preset direction ELECTRIC EYE CUTOUT TIMER This cuts out the Electric Eye if it has been activated for 15 seconds continuously The Electric Eye is enabled again after the car has run This timer is optional and will be provided only when specified CAR STUCK Used on multi car systems only The car is put out of service if it has been stuck for over 40 seconds allowing the other car s to answer all calls SQ MT9a Virginia Controls Inc Section 3 Page 2 13 HOMING Homing returns the car to the Main Landing after the car has been inactiv
51. en the doors are closed the car will wait for a call to be registered A call will cause the Retiring Cam to lift the doors to be locked and the car will then run to the call When the Retiring Cam starts to lift an internal timer starts timing If the timer trips before the car starts to run it will cancel the Retiring Cam Output re establish the door time then re try to lift the cam This prevents damage to the Retiring Cam Motor if it tries to close for an extended period of time when it is blocked for some reason 1 10 INSPECTION OPERATION Inspection Operation provides a means to move the car from on top of the car The car is moved by constant pressure of an Up or Down Button and a Run Button in the top of car station The car runs at a reduced speed of less than 150 feet per minute Hoistway Access Switches provide a means to move the car from the hall station in a similar manner to Inspection to allow an operator to get on top of the car When the Hoistway Access Switch in the Hall is closed one pole by passes the Car Door Contact and appropriate Door Contact The second pole is connected in parallel with the Inspection Buttons HOISTWAY ACCESS SWITCHES 1 The Inspection Access Key Switch in the car energizes the IAS relay and the common to the Access Switches and cuts out the Car Call Buttons Leveling Switches and the Inspection Input to the PLC 2 The PLC prevents the doors from opening and cuts out normal Automatic Operati
52. eriod then the car will be shutdown since there is a serious problem with the Regulator or its adjustments RELEVEL See also Section 1 8 The sequence on a relevel is the same as a normal run except the RL relay is not energized RL does not bypass the RRL resistor in the Generator Shunt Field circuit so RRL limits the output from the regulator to restrict the car speed to a safe minimum UL DL prevents the fast speed relays from energizing M G SET OPERATION The MG Set operation is the same as described for the Open Loop See Section 2 7 above IPC OPEN LOOP OPERATION The operation is similar to that described for the WESS Open Loop Regulator except that the Hoistmotor Field and Brake are controlled separately 2 9 SCR STATIC DRIVE OPERATION The SCR Static Drive controls the Hoistmotor Armature and Field The drive uses tachometer feed back to move the car in response to the Speed Reference Input voltage that is supplied by the S curve generator Refer to the Drive manual for details of the theory operation adjustments and start up procedures for the drive The jumpers shown on the schematic have already been installed on the drive Refer to the schematic for start up notes and a description of the function of the adjustments on the S curve generator When power is applied to the Drive Power Input terminals from the Main Line fused disconnect switch the drive turns on and performs its diagnostic self checks It then turns on the f
53. fpm All adjustments to the Tach Loss Board have been set at the factory based on the motor data supplied for each job No further adjustments should be required Refer to the schematic for notes on adjustments if the Tach Loss Board trips during normal operation Tach Loss Board LED Outputs RED LED comes on for a Tach Loss Fault GREEN LED comes on for an Overspeed Fault TACH LOSS BOARD ADJUSTMENTS TACH CALIBRATION POT Connected to TB2 14 and 15 on Tach Loss Board The Tach Calibration pot is scaled to match the tachometer voltage when the car is at contract speed The approximate value can be determined from the following formula Tach Calibration Pot Resistance 1450 Tach Voltage 29 K OHMS If the Tach Loss Board consistently trips the red Tach Loss LED during normal operation increase the Tach Calibration Pot in 1K increments If the Tach Loss Board consistently trips the green Overspeed LED decrease the Tach Calibration Pot in 1K decrements ARMATURE CALIBRATION POT Connected to TB1 3 and 4 on Tach Loss Board The Armature Calibration pot is scaled to match the armature voltage when the car is at contract speed The correct value can be determined from the following formula Armature Calibration Pot Resistance 40000 Armature Voltage 80 OHMS If field weakening is used then a separate adjustment is provided to rescale the Armature Calibration pot during field weakening This should be adjusted
54. g Floor Relays pulse down one floor The Position Indicator changes The slowdown sequence is initiated now if the appropriate call exists Repeat step 2 for each floor until the car stops NOTE 3 Slowdown distance is less than half the shortest floor height Example 2 with Full Speed on a Two Floor Run 1 2 The car starts to run down After the car has been running for approximately one second the Advancing Floor Relays automatically advance to determine whether the car will go on a short 1 floor or long multi floor run An Advancing Floor Change lock out is set to prevent another floor change until the car passes a Down Slow Speed target The Position Indicator changes The car passes a Down High Speed Slowdown target The first time the car passes a Down High Speed Slowdown target it is cut out by the floor change lock out as described in step 2 The second time the car passes a Down High Speed Slowdown target after the car has gone one complete floor this will pulse the Advancing Floor relays to the next floor in the direction of travel change the Position Indicator and initiate the slowdown for a multi floor run if the appropriate call exists The Advancing Floor Change lockout is also set to prevent another floor change until the car has passed a Down Slow Speed Slowdown target The car passes a Down Slow Speed Slowdown target This will initiate a slowdown if the car is doing a one floor run It also resets the Advan
55. g contactors and the current circulating in the Hoistmotor Armature will be diverted through the Dynamic Braking Resistors This will decelerate the car in addition to the action of the Brake Note that the effect of the Dynamic Braking will vary depending on the current in the Armature just before Dynamic Braking is initiated IMPORTANT DRIVE NOTES 1 IMPORTANT NOTE The mounting and driving mechanism for the tachometer is extremely critical It will have a tremendous effect on the performance and smoothness of the drive It is vital that there be no slip and no oscillations in the tachometer SQ MT9a Virginia Controls Inc Section 2 Page 12 IMPORTANT NOTE The wiring to the tachometer must be done with shielded twisted pair wires The shield must be connected to TCC Do not ground the shield IMPORTANT NOTE See the specific installation instructions provided with the controller for the particular drive used on each job IMPORTANT NOTE The speed reference circuit is a low voltage circuit that is subject to noise from other electrical components All wiring in the speed reference circuit is done with twisted pair wiring to reduce the possibility of interference Extreme care should be taken to keep all low voltage signals away from other wiring The Accel and Decel pots on the drive should be adjusted to be equal and to give a deceleration rate that is faster than the S curve generator but not fast enough to cause the car to slip tractio
56. he doors are fully closed Fire Service Phase 2 is cancelled and the car will return to the designated fire landing on Fire Service Phase 1 The Stop Switch will be bypassed during the return to the designated landing 5 If the Car Fire Switch is turned to the Hold position and the doors are fully open then all Car Call Buttons and the Door Close Button will be cut out and the car will remain at the floor with the doors open until the Car Fire Switch is turned to On or Off 6 If Fire Service Phase 1 is not on and the doors are fully open and the car is not at the designated fire landing and the Car Fire Switch is turned to the Off position then the car will operate as if the Car Fire Switch were in the Hold position That is the doors will remain open and the Door Close Button and Car Call Buttons will be cut out The Car Fire Switch must be turned back to the On position and the car must be returned manually to the designated fire landing If the car is at the designated fire landing and the doors are fully open and the Car Fire Switch is turned to the Off position then Phase 2 operation is cancelled and the car will return to normal operation 7 Fire Service Phase 1 can be reset even though the car is on Fire Service Phase 2 2 2 INDEPENDENT SERVICE Independent Service will give an operator in the car complete control of the running of the car by means of the Car Call Buttons and also of the closing of the doors Hall calls will NOT
57. he hall station is a three position switch that initiates Fire Service Phase 1 The three positions in order are Bypass Off and On The key is removable in the Off and On positions only and the Bypass position is spring return back to the Off position NOTE For normal operation the Fire Service Phase 1 Input must be ENERGIZED The Hall Fire Switch will normally be left in the position The Off position allows normal operation of the elevator unless Fire Service is initiated by the Smoke Detectors The car will return to the Alternate Fire Floor if the Main Landing Smoke Detector is tripped if it is provided otherwise the car will return to the Main Fire Floor The Smoke Detectors should have a normally open contact that is closed under normal operation and opens when a fire is detected The Smoke Detector contact should not be self resetting but should be reset manually or by removing power to the Smoke Detector as required by applicable codes The Off pole should only be closed when the switch is in the Off position The Bypass position allows the car to remain on automatic operation even though one or more of the Smoke Detectors have tripped The Bypass pole should only be closed when the switch is in the Bypass position The On position initiates Fire Service Phase 1 and recalls the car to the main landing even if the Main Landing Smoke Detector is tripped The On pole should only be closed when the switch
58. iable operation If the ambient temperature in the machine room is high or the duty cycle of the elevator is high it may be advisable to keep the fan on at all times This can be done by jumping terminal FAN located next to the GFC Regulator to terminal 1 on the main terminal strip CLOSED LOOP REGULATOR OPERATION The IPC Closed Loop Regulator controls the Generator Shunt Field The speed of the car is controlled by the Hoistmotor Armature voltage which is determined by the Generator Armature output which is determined by the Generator Shunt Field voltage The regulator controls the output voltage to the Generator Shunt Field according to the control circuit signals such as the direction selection contacts and the speed reference contacts The Generator Series Field is NOT USED with the IPC Regulator and should be disconnected Refer to the IPC Manual for the D 1029 Bi Directional Field Regulator for a complete description of operation of the regulator and for detailed set up instructions REGULATOR OPERATION UP RUN Down direction is similar See also Section 1 6 1 Qa o The car is about to run The MG Set is running The doors are closed and all other Safety Devices are closed The Hoistmotor Field is strengthened when the doors start to close and a direction is selected HFP energizes HF1 and HF2 and HFX is delayed by timer HFP for 1 5 seconds HFX prevents FLR from energizing until the Hoistmotor Field has been s
59. ill both turn on their Hall Call Light outputs One car as designated by the internal programming and communication between the cars will answer the call Either car may cancel any call and this will initiate a cancel signal in the communication between the cars so that they both cancel the call This system allows for normal operation should one car be unable to operate properly 1 4 DIRECTION SELECTION Direction Selection is determined by the PLC which compares the location of the calls with the location of the car to determine the correct direction of travel to answer each registered call The selected direction is indicated by the Direction Indicator Outputs Automatic Operation a call should register a direction Refer to the troubleshooting section if this does not happen On Inspection Operation the direction is selected by the Up and Down Inspection buttons Once a direction is selected it will lock out the opposite direction thus allowing only one direction to be selected at any particular time NOTE 1 Direction preference for the Hall Call that the car has stopped for is provided by the PLC If the car has stopped for an Up Hall call the PLC will delay the selection of the Down Direction thus allowing time for the passenger to enter the car and register a call in the down direction Similarly with the Down Direction The PLC will prevent a direction reversal for approximately 4 seconds after the door time expires and the doors
60. is in the On position 6 24 FIRE SWITCH CAR The Fire Switch in the car operating panel Car Fire Switch is a two or three position key switch depending upon the applicable codes that initiates Fire Service Phase 2 If it is a two position switch the positions are Off and On and if it is a three position switch the positions are Hold and On The operation may vary depending upon the particular requirements of the job or the requirements of applicable codes The On position will initiate Fire Service Phase 2 if the car is at the main landing with the doors open Fire Service Phase 2 will be self holding until the car has returned to the main landing and opened the doors The On pole should only be closed when the switch is in the On position The Hold position if used will not affect the operation unless the doors are fully open If the doors are fully open then the Car Call Buttons and Door Close Button will be cut out all car calls will be cancelled and the car will remain at the floor with the doors fully open until the Car Fire Switch is turned to On or Off This feature is only provided with a three position switch The Hold pole should only be closed when the switch is in the Hold position With a two position switch and if the doors are fully open the Off position will cut out the Car Call Buttons and the Door Close Button cancel all the calls and hold the car with the doors open With a three po
61. ivated if used The Door Time is shortened to 0 3 seconds if the car is on some special operation such as Fire Service Independent Service Attendant Operation DOOR REOPEN The doors can be re opened by registering a call at the same landing as the car or by pressing the Door Open Button the Safety Edge or the Electric Eye The PLC will de energize the Door Close Output and energize the Door Open Output thus opening the doors The Door Time will be shortened as described above Door Reopen sequence 1 The Car or Hall Call Button is pressed 2 The corresponding Input will come on 3 The PLC registers the call and lights the light and at the same time initiates the door open sequence The Call Register Light may flash very quickly but should go out as soon as the doors start to open 4 The M G set or Drive will start up if it was not already on NOTE 4 The sequence is similar for a reopening from the Electric Eye Safety Edge or Door Open Button The Door Time will start timing from the release of the reopening device POWER FREIGHT DOOR OPERATION The Power Freight Doors are controlled by a separate Door Controller provided by others The following Initiatory Contacts are provided to pilot the Door Controller AUTOMATIC OPEN Provides a signal to automatically open the doors It is energized when the car stops for a call or when a call is registered for the floor that the car is at RETIRING CAM Provides a signal
62. lector or by Floor Switches in the hoistway The floor relays are self holding so the floor position will be maintained as the car leaves for another landing and will be maintained through a power loss Once the position of the car has been set during initial installation by energizing a floor switch or putting the car at a terminal landing or a Reset Landing the floor position should not need to be reset again Floor Position is indicated by the Position Indicator Outputs which are piloted by the internal floor relays Only one Position Indicator Output should be energized at any one time If no Position Indicators or more than one Position Indicator is energized at any time refer to Section 2 for troubleshooting suggestions to determine the cause of the problem Check the Position Indicator status at the Output Module If this does not agree with the Position Indicator Lights then the problem is probably in the field wiring connections If the Output Module also displays an improper condition then run the car to a terminal landing or past a Floor Switch to reset the floor position If this does not solve the problem consult the factory for further suggestions on checking the CPU Module or the Rack During the scan that the new floor relay is energized the PLC checks to see if there are any calls at the new landing which could initiate slowdown This means the floor change point determines the slowdown distance This distance is calculated base
63. loor that will prevent the car from running at all if it is in the open position The switch must be closed for the car to run 6 5 EMERGENCY STOP SWITCH The Emergency Stop Switch is located in the car operating panel and consists of a toggle switch or maintained pushbutton with a normally closed contact that opens when the switch is in the Stop position It will prevent the car from running when it is in the Stop position The Emergency Stop Switch is by passed when the car is leveling or when the car is running and it is on Fire Service Phase 1 6 6 CAR DOOR CONTACT The Car Door Contact is mounted on the car door and is closed only when the doors are fully closed It must be closed for the car to run EXCEPT that it is by passed in leveling and on Inspection Access Operation 6 7 HALL DOOR CONTACTS The Hall Door Contacts are located on each Hall Door at each landing They are closed only when the Hall Doors are fully closed They must be closed for the car to run EXCEPT that they are by passed in leveling and the appropriate Hall Door Contact is bypassed on Inspection Access Operation to allow the car to move away from that floor only with the doors open 6 8 DOOR ZONE SWITCH The Door Zone Switch is a normally open contact that is closed when the car is close to floor level approximately 3 above or below the floor It will prevent the doors from opening if it is not energized This is the same as the Low Level Switch if used
64. lso Section 1 7 n n s reete 11 SIOPPING a cates tete ba aae utate deutet astutus deed au asus 11 15 SEOWDONMINS etate teret tre reete et RR FUROR OS OR e utero ERE CO aa sia uses FEN NS 12 IBN RESLEVELINGS M 12 1 9 DOOR OBEN AND CLOSE ttr oue to to rere teo pog pe qaa ete 13 AUTOMATIC DOOR OPEN WHEN THE CAR STOPS 13 DOOR SOPORE 13 SHORTENED DOOR TIME t e Saa e de DNA per ER esu Eee e ee E nee 13 DOOR RE ORE Ns PEE 14 POWER FREIGHT DOOR OPERATION cite tiers ee eee cays susie qe debe pest eee tup eet de apak 14 1 102 INSPECTION OPERATION D e deo nte e n tne dead dba ode A 15 HOISTWAY ACCESS SWITCHBS ana visite sp Era deae ue Leve e uS RES nn asas E 15 T P OF CARINSPECTION L aq asa ankha an e ticles isn eaten ith dave tise n Spiele rage engager ate xo pede 15 SEQUENCE OF OPERATION SPECIAL FEATURES 1 LT FIRE SERVICE OPERATION ertet ee re e ERE ee e res eee re p ete E e repa ees 1 FIRE SERVICE PHASE 1 HALL a at aaa a h uda ana S 1 FIRESERVICE PHASE2 CAR 3 tt ete ot eite sd tyr e optet esa ayau uu a au ats 2 2 2
65. motor Field FS or 1FR activates the Leveling Switches The car slows down to Approach Speed STOPPING See also Section 1 6 1 The car reaches the Leveling Target and energizes the Up Level Switch The Up Level Switch energizes UL and LV LV selects the Leveling Speed reference and the car ramps to Leveling Speed The car rides onto the Low Level Door Zone Switch and energizes the LL relay NOTE 7 Sufficient slowdown distance should be allowed for the car to reach Leveling Speed before it rides off the Leveling Target and attempts to stop This allows for a more controlled stop The car rides off the Up Level Switch which de energizes UL and LV SQ MT9a Virginia Controls Inc Section 2 Page 9 5 The PLC de energizes the run output U which de energizes BK1 BK2 immediately the Brake drops 6 The speed signals to the drive are disabled so the drive produces an output that will hold the car at zero speed This allows the brake to set while the car is still held under control 7 After a brief time delay approximately 1 second UDT and UDTX will de energize This de energizes SUX and SUY The suicide circuit closes 8 SUX de energizes PY and PZ thus opening the power to the Generator Shunt Field supply PX is held slightly to allow the regulator s internal contactor to drop last without any load NOTE 8 The suicide circuit connects the Generator Shunt Field across the Generator Armature in such a way as to
66. n The rate set by these pots will be used when the car stops at a floor that is when it rides off the leveling switch and before the brake sets Adjust the dropping of the brake and the setting of these pots to give a soft stop Note These pots will also control the deceleration rate when the car stops on inspection operation and if the S curve generator output immediately goes to zero which could happen on a safety stop or with a hardware malfunction of the S curve generator IPC D 280 S CURVE GENERATOR ADJUSTMENTS The speed of the drive is controlled by the speed reference voltage input signal at terminals TB1 21 and TB1 23 A signal of 10vdc produces full speed up 10vdc produces full speed down The signal is produced and controlled by the IPC D 280 S curve generator The maximum output of the D 280 is 10vdc The maximum speed pot on the drive should be adjusted so that when the D 280 is producing 10vdc the car is at contract speed The following adjustments are available on the D 280 1 Rounding pots p1 p4 These pots adjust the rate of change of acceleration or deceleration This affects the motion of the car when it first starts p1 reaches the preset speed p2 starts to decelerate p3 and decelerates to a slower preset speed p4 Turning p1 p4 clockwise makes the curve sharper for a harder and faster ride Turning p1 p4 counter clockwise makes the curve smoother giving a softer and slower ride It is recommended that the
67. n Fast Speed and slows down when it reaches a floor where an appropriate call exists The car stops when it rides onto then off a leveling switch The car will then be between the Up Level and the Down Level switches The doors will open automatically remain open for a preset time and then close automatically The car will then be ready to run to the next call The operation of the above features is described in the next few sections A general description of the sequence is given below For details on the sequence for a specific type of controller see Section 2 STARTING Refer to the safety circuits on the schematic Example UP RUN Down direction is similar 1 A call above the car is registered The call energizes the Up Direction Indicator The MG Set or Drive will start if it is not already running After the Door Time expires the doors will start to close 2 The doors close and all other Safety Devices are assumed to be closed DC relay energizes when the doors close DC relay energizes the Doors Closed Input to the PLC The PLC turns on the Up Run Output and all Speed Selection Outputs Fast Speed Output One Floor Run Output Two Floor Run Output etc and the Leveling Cutout Output if used The running relays and contactors energize With MG set systems the Generator suicide circuit opens and power is applied to the Generator Shunt Field With SCR Drive systems the drive enable circuit is closed and the drive starts to
68. nc Section 2 Page 7 RU connects the set in the Delta configuration RU auxiliary contact energizes FLR which closes the Up and Down Run safety circuit allowing the car to run when the rest of the safety circuit is closed STOPPING THE M G SET 1 2 8 After there has been no demand for the elevator for 5 minutes as set by an internal timer in the PLC de energizes de energizes MG RUX MG and RUX de energize RU and the M G set stops NOTE 1 The MG set may be manually turned on or off by the toggle switches on the controller Note that the MG ON switch will keep the MG set on constantly The MG OFF switch will stop the MG set even if the MGP relay is energized The second pole of the MG OFF switch cuts out the SAF relays thus turning off power to the WESS Regulator NOTE 2 The Reverse Phase Monitor MG Set Drive Motor Overload and Loop Overload must remain in the normal condition contacts closed If any of these devices open this will drop relay which will drop MG and RUX and stop the MG set NOTE 3 FL Hoistmotor Field Loss Relay must be energized when the car is sitting idle If it opens then there is a problem with the GFC Regulator power supply to the Hoistmotor Field or there is a problem with the Hoistmotor Field itself NOTE 4 A fan is provided next to the Regulator to keep it cool It is vital that the Regulator be kept at a reasonably cool temperature for rel
69. ng Speed before it rides off 10 11 the Leveling Target and attempts to stop This allows for a more controlled stop The car rides off the Up Level Switch which de energizes the UL relay and the Up Level Input The PLC de energizes the Up Run Output which de energizes up run relays In M G set systems a reverse charge is applied across the Generator Shunt Field to provide an electric stop This allows for a soft stop while the brake is setting In SCR Drive systems the drive will hold the car at zero speed until the brake sets The brake sets After a brief time delay approximately 1 second UDT and UDTX will de energize On M G set systems this closes the suicide circuit On SCR Drive systems it turns off the drive run circuit and opens the drive contactor NOTE 5 On set systems the suicide circuit connects the Generator Shunt Field across the Generator Armature in such a way as to apply the residual Generator Armature voltage across the Generator Shunt Field so that it is cancelled or suicided This is a very important circuit since it involves SQ MT9a Virginia Controls Inc Section 1 Page 11 the fail safe operation of the elevator The circuit should be checked periodically for proper operation The contacts in the suicide circuit should be checked regularly for pitting or wear NOTE 6 A Shutdown Timer in the PLC will shut the car down if it runs for more that 30 60 seconds without passing a floor change point
70. on Door Close is cut out by the external IAS contact The Hoistway Access Switch is turned to move the car up or down from the terminal landing The 1st pole bypasses the Car Door and Bottom or Top Door Contact The 2nd pole energizes the 1st or 2nd Landing Car Call Button Input to the PLC provided the Zone Switch is energized 6 The PLC energizes the appropriate outputs to run the car as described in section 1 6 EXCEPT fast speed relays do NOT energize so the car will run at reduced speed on Hoistway Access and Inspection Operation 7 When the switch is released the PLC de energizes the run outputs causing the car to stop immediately TOP OF CAR INSPECTION 1 The Top of Car Inspection Switch is thrown to Inspection The Hoistway Access Switches are cut out The Top of Car Up Down and Run Buttons are activated The Hoistway Access Switches Leveling Switches and the Car Call Buttons are cut out The PLC cuts out the Hall Calls the Door Open and prevents the automatic operation of the car Pressing both the Run and Up Inspection Button energizes the 2nd Landing Car Call Button Input Pressing both the Run and Down Inspection Button energizes the 1st Landing Car Call Button Input eNO AF N The PLC energizes the appropriate direction run outputs when the Inspection Input is de energized the doors are closed and only one of the 1st or 2nd Car Call Button Inputs is energized NOTE 1 When either button is released the
71. oor run speed This allows the car to ramp to the correct speed without a bump in the acceleration pattern DECELERATION See also Section 1 7 1 Slowdown is initiated at the appropriate floor change slowdown point 2 The PLC de energizes the Speed Selection Outputs and decelerates to approach speed NOTE 4 If the car has multi floor run circuitry and is going on a run that will not reach full speed then the Fast Speed relay will drop out when the Advancing Floor Relays step out at the start of the run before the car reaches one or two floor run speed The One or Two Floor Run Speed relay remains energized to allow the car to accelerate to One or Two Floor Run Speed STOPPING Example 1 The car has slowed down to stop at the next landing and it is traveling in the up direction The fast speed relays have de energized and the car is decelerating to Approach Speed The leveling units are activated 2 The car reaches the Leveling Target and energizes the Up Level Switch 3 The Up Level Switch energizes UL relay and the PLC Up Level Input The car ramps to Leveling Speed 4 The car rides onto the Low Level Door Zone Switch and energizes the Low Level Door Zone Input 5 The PLC de energizes the Door Close output removing torque from the doors The doors are now set up to open when the car stops 6 The Door Contacts are by passed by UL relay NOTE 4 Sufficient slowdown distance should be allowed for the car to reach Leveli
72. passed returning the car to normal operation by turning the hall Fire Switch to the Bypass position On Fire Service Phase 1 the following changes in operation occur 1 2 Car Calls Hall Calls and Direction Lanterns are cut out A direction is set up to bring the car to the Fire Return landing NOTE 1 With Alternate Landings the proper landing is determined by the status of the Main Landing Smoke 10 11 Sensor Input when Fire Service is initiated If the Main Landing Smoke Sensor Input is energized the car will return to the Main Landing If the Input is de energized the car will return to the Alternate Landing Any change in Smoke Sensor contacts will not affect the designated landing once Fire Service is initiated However if the Hall Fire Switch is turned to the On position the car will return to the Main Landing even if the Main Landing Smoke Sensor had tripped and sent the car to the Alternate Landing The doors will not open automatically except at the Main Landing If the doors are already open at a landing other than the designated Fire Landing the doors will be able to reopen fully from momentary contact of the Safety Edge or Door Open Button If the doors are closed and the car has started to return to the Main Landing the Safety Edge and the Door Open Button are cut out The Electric Eye is cut out on Fire Service Phase 1 and 2 The Door Time is shortened to allow the car to respond quickly The Stop Swi
73. perdete epe ite ee ponte e E epe eH e io ae te er ete es 4 6 24 FIRES WITCH CAR eene Reed eem tede temo ns 4 6 25 INDEPENDENT SERVICES VIIC H eonna e NR ec t B t EE RR OD M ecu ies 5 6 26 POSETIONJINDIGCATOR EIGHSTS 5 er a L i rive ei ve m dive e i diete e a 5 627 DIRECTION INDICATOR LIGHTS ii it ERO 5 628 DIRECTION LANTERNS chs ibo ya S qup epe bebo ede tepidis 5 6 29 EIGHT UP BUTTONS iss edt p Dki Sua bun uu e uo rt RUD aere er Re 5 630 PASSING GONG di einn ceteri REC D ERE E UU EO DER E P OR PR n rts 5 SQ MT9a Virginia Controls Inc Section 1 Page 3 6 31 EIRESERVICELIGELT 5 ttr E tien i E equ it e er 6 32 IRIRE AUDIBLE VISEIBEE SIGNA D iit eter Rt ERREUR RETE ORE RI TIERE ERE D REIR TS SQ MT9a Virginia Controls Inc Section 1 Page 4 1 SEQUENCE OF OPERATION BASIC FEATURES This sequence of operation is as accurate as possible but the control circuits being described are subject to change and may be modified for particular job requirements Refer also to the schematic for details on inputs and outputs and additional external circuitry NOTE When sequences are described for one floor all other floors are similar Refer to the schematic for details on specific Inputs and Outputs and the exact controller wiring 1 1 FLOOR POSITION The position of the Elevator is monitored by the internal floor relays in the PLC which are piloted by the Car Top Se
74. point When the car is floor level it should be 1 4 above the Up Level Switch This allows the car to move slightly without re leveling back to the floor 6 18 DOWN LEVEL SWITCH The Down Level Switch provides a normally open contact that closes when the car is between 1 4 and 9 above floor level The Down Level Switch initiates stopping and re leveling in the Down direction The distance before the floor that the Down Level Switch energizes determines the length of the Leveling Zone and should be about 9 The car will ramp from Approach Speed to Leveling Speed at this point When the car is floor level it should be 1 4 below the Down Level Switch This allows the car to move slightly without re leveling back to the floor 6 19 LOW LEVEL SWITCH The Low Level Switch provides a normally open contact that closes when the car is in the Low Level Zone The Low Level Zone is not usually required if a Door Zone Switch is provided since it is the same as the Door Zone 6 20 INSPECTION ACCESS SWITCH The Inspection Access Key Switch in the car station is usually a single pole double throw contact In the Off position it allows normal operation When the key switch is turned to the On position it activates the Hoistway Access Switches NOTE Applicable codes may require additional poles Refer to the schematic for specific job requirements SQ MT9a Virginia Controls Inc Section 6 Page 3 6 21 HOISTWAY ACCESS SWITCHES The Hoistway Acces
75. pots be set fully clockwise then backed off as required for a smooth ride The diagram on the S curve board helps visualize which pot affects which part of the movement of the car Speed Pots SP1 SP5 These pots determine the speed output that the D 280 will ramp to A speed is selected by a contact closure from the speed common TB3 21 to the desired speed terminal TB3 22 for SP1 TB3 23 for SP2 etc Only one speed can be selected at any given time The D 280 will ramp from its previous speed to the new speed each time the speed is changed Turning the speed pots SP1 SP5 clockwise will increase the speed Refer to the schematic to see the exact function of the speed pots SP1 Speed Setting 1 Limited to 15 of maximum speed It sets the leveling speed normal leveling speed is 7fpm SP2 Speed Setting 2 Limited to 30 of maximum speed It sets the inspection speed If a greater inspection speed is desired the wire in terminal TB3 22 can be moved to a spare speed point that does not have a limitation of its output SP4 or SP5 if available This must NOT be done if the contract speed is over 500fpm and is not recommended if the contract speed is over 100fpm SP3 Speed Setting 3 This speed is not limited It sets the Approach Speed which is an intermediate speed the car will decelerate to when it starts slowdown and before it reaches the leveling zone Normal approach speed is 30fpm SP4 Speed Setting 4 This speed is not limi
76. r Output module fails it may be possible to temporarily replace that defective module with another module that is used for non essential functions such as call register lights thus providing service to the building while a replacement module is being obtained NOTE The Input and Output modules must be installed in the correct slots The schematic indicates where each module should be located Though Input modules may be changed with other Input modules of the same type and Output modules changed with other Output modules of the same type an Input module must NEVER be put in a slot allocated for an Output module and an Output module must NEVER be put in a slot allocated for an Input module 6 A safety relay interface is provided to prevent dangerous operation due to a failure of the Programmable Controller It is possible that the programmable controller may turn on an output point yet the field safety switches may prevent the associated device from energizing For example if the Up Run Output energizes but the Up Normal Switch is open then the Up Run Valve s will not energize SQ MT9a Virginia Controls Inc Section 3 Page 3 7 The floor relays and fire service relays are maintained in the CPU memory and are held through power loss The floor relays may need to be reset when the controller is initially installed This will be accomplished when the elevator hits any floor switch With a pulsing type selector the floor position is reset a
77. resistance will increase the point at which an overspeed fault occurs SQ MT9a Virginia Controls Inc Section 2 Page 16 3 CONTROLLER ADJUSTMENTS AND INSTALLATION NOTES NOTE When sequences are described for one floor all other floors are similar Refer to the schematic for details on specific Inputs and Outputs and the exact controller wiring Refer also to the G E Manual for Operating Instructions for the Programmable Logic Controller PLC 3 1 ADJUSTMENTS 1 EST EMERGENCY STOP SWITCH TIMED RELAY HIGH SPEED TRACTION ELEVATORS Energized when the Emergency Stop Switch in the car is in the On or Run position It is a time delay drop out relay and allows the car to slow down if the Stop Switch is thrown while the car is running ES will de energize the speed relays or speed circuits causing the car to start to slow down but EST will hold the direction relays allowing the car to slowdown normally before applying the brake This provides a smoother stop with less strain on the equipment than an immediate stop would The time on EST should be adjusted by means of the multi position switch EST which changes the amount of capacitance in parallel with the relay coil UDT and UDTX CAR RUNNING TIMED RELAYS Some TRACTION ELEVATORS Energized when the car is running and held for a short time after the car stops On M G set systems it allows the Electric Stop to hold the car before the Brake sets and the suicide
78. s Switches are located at the appropriate landing and provide a means to move the car away from the floor with the doors open to allow access to the top of the car or to the pit area The switches are double pole double throw with a center off position One pole initiates the run in a similar manner to Inspection operation and the other pole by passes the door contacts at that floor A Zone switch is usually used in conjunction with the top landing Hoistway Access Switch to prevent the car from being moved too far from the floor and leaving the shaftway open The Zone Switch is usually a normally open contact that closes when the car is in the proper zone for operation on Hoistway Access The applicable elevator codes may require additional Zone Switches for safer operation 6 22 TOP OF CAR INSPECTION SWITCHES The Top of Car Inspection Station usually contains the following devices 1 Inspection Stop Switch that provides a normally closed contact It will stop the car if it is opened 2 Inspection Switch that is a single pole double throw switch which activates the Inspection Buttons and cuts out automatic operation if turned to the Inspection position 3 Up Down and Run Buttons which are single pole normally open buttons The Run Button and either the Up or the Down button must be pressed to make the car run on Inspection The car will stop when either button is released 6 23 HALL FIRE SWITCH The Hall Fire Switch in t
79. s on the speed pots on the IPC Regulator As the Generator output voltage approaches maximum the FW relay will energize This will weaken the Hoistmotor Field to the running value and allow the car to reach contract speed NOTE 2 Use the lowest tap on the GFCXF transformer that will still allow the required Generator Shunt Field voltage to achieve maximum speed This prevents the Generator Shunt Field from being given too much voltage NOTE 3 Adjust the resistor RS to obtain the required Generator Shunt Field current to run the car in the up direction with a full load at rated speed NOTE 4 Adjust the One Floor Run speed to achieve the optimum run on the shortest one floor run The deceleration rates for One Floor Runs and Multi floor Runs should be the same NOTE 5 If the car is going on a One Floor Run then FS relay will drop out before the car reaches one floor run speed This allows the car to ramp to the correct speed without a bump in the acceleration pattern DECELERATION See also Section 1 6 and 1 7 1 2 Slowdown is initiated at the appropriate floor change slowdown point FS or 2FR and or 1FR de energize NOTE 6 Ona One Floor Run FS de energizes after the car has run for about 0 5 seconds and 1FR remains 3 4 5 6 2 3 energized to allow the car to accelerate to One Floor Run Speed The IPC Regulator reduces the Generator Shunt Field voltage causing the car to decelerate HF2 strengthens the Hoist
80. sing Contactor Relays A1 DA DAP Drive Activate Contactor Pilot Relay A1 DB1 2 Dynamic Braking Contactors B9 DBP DBA DBB Dynamic Braking Relays A1 DC Door Closed Relay A1 DCC Drive Deceleration Rate Pilot Relay A1 DL Down Level Relay A1 DZ Door Zone Relay A1 ES EST Emergency Stop Switch Relays A1 A2 ESB Emergency Stop Switch By Pass Relay A1 FL FLR Field Loss Contactor Relay A2 FS FSX Fast Speed Run Contactor or Relays A2 FSR Fast Speed Run Latched Relay A1 HD1 2 Down Hall Lantern Pilot Relays A1 HU1 2 Up Hall Lantern Pilot Relays A1 IAS Inspection Access Relay A1 LC Leveling Cutout Relay A1 LL Low Leveling Speed Relay A1 LV Leveling Relay A1 MG MG1 2 Motor Generator Contactor Relays A1 N Door Close Nudging Relay A1 O Door Open Relay In MODSS on top of the car A1 P PX Potential Contactor Relay A1 RUX RUXP M G Set Running Contactor Timer 1 12 SAF1 2 Safety Circuit Relays B7 STR RU Motor Generator Reversing Contactors B1 SU Suicide Contactor B8 TRU Wye Delta Run Relay Wye Delta Start Only A1 TRUP Wye Delta Run Timer Wye Delta Start Only D1 U U1 2 UX Up Run Reversing Contactor Relays A1 UD Car Running Relay A1 UDT UDTX Car Running Delay Drop Out Relays A2 UL Up Level Relay A1 VR Voltage Relay Optional A1 PARTS SUBJECT TO CHANGE WITHOUT NOTICE The symbol SAF 1 2 for example indicates that two relays SAF1 and SAF2 have their coils connected in parallel The part numbers shown above correspond to the
81. sired slowdown from full speed Adjust DCC2 so that there is no bump when going from speeds SP3 to SP1 If a bump is felt decrease DCC2 If the car overshoots either increase DCC2 or increase the slowdown distance DCC2 should have a slower ramp than DCC1 ACC Acceleration Rate 1 Sets the normal acceleration rate ACC2 Acceleration Rate 2 Sets the Inspection acceleration rate STATIC TEST PROCEDURE FOR D 280 S CURVE GENERATOR This procedure can be used to test the IPC D 280 S curve generator board 1 Important Make sure the car cannot run and the brake cannot lift by putting the car on Inspection and opening the safety circuit open the Emergency Stop Sw Door Contacts etc Input Voltage Check Verify that TB1 1 to TB1 3 15VDC and TB1 2 to TB1 3 15VDC 2 Speed Voltage Check Unplug ES relay to disconnect the contacts in the speed selection circuit Connect the test meter to TB3 21 and TB1 3 Connect the jumpers shown in the following table one at a time and observe the meter reading The voltage should be adjusted by the speed pot as shown in the table Jump TB3 21 to Adjust Speed Pot Output Voltage TB3 22 SP1 1 5VDC TB3 23 SP2 3VDC TB3 24 SP3 0 10VDC TB3 25 SP4 0 10VDC TB3 26 SP5 0 10VDC TB3 27 not adjustable 10VDC Ramp Voltage Check Connect the meter to TB2 9 and TB1 3 to monitor the D 280 output Jump TB3 21 to TB3 22 to test speed 1 Jump TB3 35 to TB3 36 to simulate an up run
82. sition switch SQ MT9a Virginia Controls Inc Section 6 Page 4 and if the doors are fully open the Off position will initiate an automatic return to the main landing where the will return to Fire Service Phase 1 The Off pole should only be closed when the switch is in the Off position A Fire Call Cancel Button if provided will cancel all Car Calls when pressed 6 25 INDEPENDENT SERVICE SWITCH The Independent Service Switch is a normally open key switch located in the car operating panel that closes when it is turned to the On position It initiates the Independent Service feature 6 26 POSITION INDICATOR LIGHTS The Position Indicators are lights that indicate the position of the car in the shaftway They will change to the next floor when the car reaches the slowdown point for the new floor Position Indicators in the hall and in the car should be connected in parallel and they are 115VAC 6 27 DIRECTION INDICATOR LIGHTS The Direction Indicator Lights indicate the direction that the car is set to run based on the existing calls If the car has no preset direction these lights will not be lit The Direction Indicator Lights will go out when the car slows down for the last call if it is a car call or when the doors start to close if it is a hall call A hall call will select a direction and therefore light the Direction Indicator Lights even if the car was at the same landing as the call These are not the same as
83. start to close If the car stops for a call in the opposite direction to the direction that the car is running that is the car stops for a down call when it going up or vice versa then the PLC will reverse the direction selection to correspond to the demand Example 1 The car is at the 2nd landing SQ MT9a Virginia Controls Inc Section 1 Page 9 2 Car Call would re open the doors and not select a direction A 2U Hall Call would open the doors and energize the Up Direction A 2D Hall Call would open the doors and energize the Down Direction A call above the car would energize the Up Direction Indicator gv a OLN A call below the car would energize the Down Direction Indicator 1 5 DIRECTION HOLD The PLC will hold the direction selected once it has started its full speed run until the car has stopped This allows the Direction Indicators to change or de energize while the car is running especially at slowdown without affecting the movement of the car NOTE 1 If further demand exists in the current direction of travel the Direction Indicators will remain energized thus holding the direction until all demand in that direction had been answered NOTE 2 If the car is operating on Inspection Operation the direction of the car may be reversed as soon as the car has stopped 1 6 DIRECTION RUN When a demand has been initiated and the doors have closed the car will run in response to the demand The car starts i
84. swer Lobby Hall Calls and will also be the first to leave the Lobby in response to calls away from the Lobby CAR START The Car START feature controls when the car will respond to registered Hall Calls by controlling the internal direction circuits When the START circuit is energized the car will immediately begin to respond to Hall Calls The START circuit is energized if any of the following conditions are true Any Car Call is registered or The car is away from the Lobby or The car is running fast speed or The car is not in normal group operation or The other car is not in normal group operation or The other car has a call behind it or NO aF WN The car is Next and there are two cars at the Lobby or 8 Hall Call s have been energized for a preset time period HOMING If there are no cars at the Main Dispatch landing the first free car will home or return to the Main Dispatch Landing This is accomplished by internal circuits in the PLC A car will home if the following conditions have been met for 2 seconds 1 The car is in group operation not on Inspection Independent Service Fire Service Load Weighing etc The Stop Sw is not thrown The car is not stuck The doors are closed The car is not at the Main Dispatch Landing The car is not running The other car is in group operation The other car is not at the Main Dispatch Landing oo Pa N The other car is not running o
85. t either terminal landing when a slowdown switch and the low level switch are energized at the same time NOTE If floor switches are used they should be maintained at the terminal landings so that they are energized whenever the car is in the slowdown zone at that landing 3 4 TROUBLESHOOTING 1 Refer to the User s Manual chapter 3 for maintenance and troubleshooting procedures A Hand Held Programmer is not required for proper operation of the system though it does aid in troubleshooting the CPU 2 Troubleshooting with the PLC is similar to any other controller and has several features to speed up determining the cause of any problem No special knowledge of the operation of the PLC is required to be able to troubleshoot it A Hand Held Programmer is useful but not essential for troubleshooting 3 Once the system has been installed and is running properly the most common problem will be the failure of an Input or Output point The first step in locating the cause is to determine whether the fault is in the PLC or whether it is in the external wiring For example if a Position Indicator Light is not lit check the Output Module for the appropriate Output Point to determine if the PLC is trying to turn the light on or not If the PLC Module light is on then confirm that there is voltage at the Module terminal If there is voltage at the Module terminal then the problem is external to the PLC It could be in the wiring to the Position In
86. tch is by passed once the car has started to run by the ESB relay ESB is held until the doors open at the designated Fire Landing If the car is on Inspection Operation or is away from the designated Fire Landing then the Audible Visible will energize If the car is on Inspection Operation the operator will have complete control of the car till it is released from Inspection If the car is on Independent Service then the audible visible signal will sound If the car is not returned to normal operation within 30 seconds by the operator then Independent Service will be automatically cut out and Fire Service will be initiated If the car is at the designated landing or the car is running then Independent Service is cut out immediately and Fire Service is initiated Once Fire Service is initiated it is necessary to turn the hall Fire Switch to Bypass in order to reset Fire SQ MT9a Virginia Controls Inc Section 2 Page 1 Service Cycling the power will not cancel Fire Service even if the Smoke Sensors are reset 12 Fire Service in the Hall Phase 1 may be reset even though the car is still being operated on Phase 2 by a fireman in the car This allows cars in a group to be returned to automatic operation while one or more cars are being used by the Fire Department for cleanup operations NOTE 2 The operation may vary depending on the applicable codes and particular job requirements FIRE SERVICE PHASE 2 CAR Fire Service Phas
87. ted It normally sets the One Floor Run speed which is only used if the car cannot reach contract speed when running between the shortest floor Adjust SP4 to give the desired One Floor Run speed which should be approximately the maximum speed the car can do when travelling between the shortest floor SP5 Speed Setting 5 This speed is not limited It normally sets the Two Floor Run speed which is only used if the car cannot reach contract speed in the shortest two floor run Adjust SP5 to give SQ MT9a Virginia Controls Inc Section 2 Page 13 the desired Two Floor Run speed which should be approximately the maximum speed the car can do when traveling between the shortest two floors HIGH High or Full Speed is not adjustable It will produce 10vdc output from the D 280 Contract speed is achieved by setting the maximum speed pot on the drive Acceleration and Deceleration pots These pots adjust the rate of acceleration and deceleration Turn the pots clockwise for a faster rate The pots can adjust the ramp time from 1 second fully clockwise to 5 seconds fully counter clockwise DCC3 is not used DCC1 Deceleration Rate 1 This adjusts the deceleration rate or ramp when the car requires a fast slowdown such as when the Emergency Stop Switch is thrown DCC1 should have a faster ramp than DCC2 DCC2 Deceleration Rate 2 This adjusts the deceleration rate or ramp during normal slowdown and should be adjusted to give the de
88. that the instructions for a previous job will apply to another job RESET FACTORY DEFAULT SETTINGS If the operation of controller is strange such as the door times being extremely short the car not returning to the correct Fire floor then the factory default values should be reset The adjustable values are reset to the factory SQ MT9a Virginia Controls Inc Section 3 Page 4 settings whenever the Field Adjust Mode is initiated from a power off condition The jumpers described below can probably be made to terminals 21 22 and 23 on the main terminal strip or directly to the Input Module whichever is easier See the schematic to determine whether these terminals are connected to points A1 A2 and A3 on Input Module 1 To reset all values to the Factory default Turn OFF the power Turn OFF disconnect Input A3 on Module 1 Turn ON jump on Inputs A1 and A2 on Module 1 Turn ON the power wait for the RUN light to come on After the RUN light has been on for 10 seconds turn off the power Remove the jumpers from Inputs A1 and A2 and reconnect Input A3 FNL OD SOV deo qe Turn the power back on SQ MT9a Virginia Controls Inc Section 3 Page 5 4 CONTROLLER NOMENCLATURE SYMBOL DESCRIPTION PART NO AAF ABF ACF etc Binary Coded Advanced Floor Position Relays A1 AF BF CF etc Binary Coded Floor Position Relays A1 BK1 BK2 Brake Contactors B7 C Door Close Relay In MODSS on top of car A1 D D1 2 DX Down Run Rever
89. then turns on the corresponding Car Call Light and holds the call until the car has answered the call and it is cancelled as shown below Individual Car Calls are cancelled when the car slows down for the call at the appropriate floor or reopens its doors at the same floor as the Car Call All Car Calls are cancelled when the car is on Inspection Operation Independent Service or Fire Service as described later Example 1 The car is not at 1 and 1C Car Call is registered 1C Car Call Button is pressed energizing the 1C Car Call Input The PLC holds the call and turns on the 1C Car Call Light The PLC initiates the run to the 1st landing to answer the call The car slows down at the 1st landing in response to the 1C call The PLC cancels the call when slowdown is initiated The 1C Car Call Light goes out The doors will open in response to the call when the car stops o Q amp O N Example 2 1 The car is at the 1st landing and 1 is energized 2 1C Car Call Button is pressed energizing the 1C Car Call Input 3 The PLC holds the call and turns on the 1C Car Call Light 4 The PLC initiates the Door Open cycle and cancels the call 5 The 1C Car Call Light goes out 1 3 CALLS Momentary closure of a Hall Call Button will energize the corresponding Hall Call Button Input The PLC then turns on the corresponding Hall Call Light and holds the call until the car has answered the call and it is cancelled
90. to eliminate Tach Loss faults during field weakening The correct values can be determined from the following formulae Armature Calibration Pot Resistance 40000 Armature Voltage x Speed Ratio 80 K OHMS with Full Field where Speed Ratio Contract Speed Car Speed with Full Field and Full Armature Voltage Armature Calibration Pot Resistance 40000 Armature Voltage 80 K OHMS with Weakened Field NOTE A more accurate means of adjusting the Tach and Armature Calibration pots is to adjust them till the voltage at the point between resistors R12 R13 and ground for Tach Calibration and between resistors R31 R32 and ground for Armature Calibration is equal to 8 volts See diagram below lt Voltage to Ground 8 Volts Tach Calibration point shown Armature Calibration is similar except measure the voltage between resistors R31 and R32 OVERSPEED CALIBRATION POT Connected to TB2 9 and 11 on Tach Loss Board SQ MT9a Virginia Controls Inc Section 2 Page 15 The Overspeed Calibration pot set the percentage overspeed that causes a fault trip This is 33K Ohms for 110 of contract speed for normal operation An additional adjustment sets the Overspeed Calibration setting on Inspection operation or when the car is leveling This is factory set to trip the overspeed if the car exceeds 140fpm These adjustments should not require adjustment in the field NOTE Decreasing the Overspeed Calibration pot
91. to give preference to the Down direction Direction preference will be held until the doors have started to close If a call has not yet been registered in the preferred direction the direction may now be reversed 1 8 RE LEVELING Stopping is initiated by the Leveling Switches as described in Section 1 6 The car rides onto then off one of the Leveling Switches and this will initiate the stopping sequence The Leveling Switches also provide a means to re level the car and keep it within a preset distance from the floor A relevel is initiated when the car was floor level but a change in load or other conditions caused it to move onto one of the Leveling Switches The car will then move back to floor level Leveling can be done with the doors open but not with the Emergency Stop Switch in the Off position The Leveling Zone is the distance above and below the floor that the Leveling Switches are energized The Leveling Dead Zone is the distance above and below floor level that the car can move without energizing a leveling switch and being moved back to the floor Example 1 The car sinks down onto the Up Level Switch 2 The Up Level Switch energizes UL relay and the Up Level Input 3 The PLC prevents the fast speed outputs from energizing 4 The PLC energizes the Up Run Output This initiates a run as described in section 1 6 except the speed is set to relevel speed since UL is energized and no fast speed relays are energized e
92. to lift the Retiring Cam Energized when the doors are closed and a call is registered The Retiring Cam will lift and lock the doors allowing the car to run If the car is on Fire Service Phase 1 the Retiring Cam will not drop when the car does a reversal to return to the Main Landing This prevents the Door Open Buttons from opening the doors while the car is reversing direction CUT OUT Cuts out normal door operation when the car is on Inspection Operation or when the Stop Switch is thrown HOME LANDING Energized when the car is at the Fire Return Ldg if used FIRE SERVICE PHASE 1 Energized on Fire Service Phase 1 Hall if used FIRE SERVICE PHASE 2 Energized on Fire Service Phase 2 Car if used FIRE SERVICE PHASE 2 OFF Energized when Car Fire Sw is in the Off position if used ATTENDANT SERVICE Energized on Attendant Service if used NOTE The doors will open automatically when the car first arrives at a floor or when a call is placed at SQ MT9a Virginia Controls Inc Section 1 Page 14 the floor that the car is at The Door Open signal will be cut out after approximately 10 seconds if the doors fail to open The doors also may be opened by means of the Door Open buttons connected to the Door Controller Door Close is initiated by the Door Close buttons connected to the Door Controller There are normally no provisions for controlling the door close sequence from the Virginia Controls controller Wh
93. tor Field and Brake The speed of the car is controlled by the Hoistmotor Armature voltage which is determined by the Generator Armature output which is determined by the Generator Shunt Field voltage The regulator controls the output voltage to the Generator Shunt Field according to the control circuit signals such as the direction selection contacts and the speed reference contacts WESS REGULATOR OPERATION UP RUN Down direction is similar See also Section 1 6 1 The car is about to run up The MG Set is running The doors are closed and all other Safety Devices are closed 2 The PLC turns on the Up Run Output U1 2 relays Fast Speed Run Output FS and FSX relays and One Floor Run Output 1FR relay if used SQ MT9a Virginia Controls Inc Section 2 Page 5 U P PX UDT UDTX BK1 BK2 energize and SU de energizes SU BK1 and BK2 open the Generator suicide circuit BK1 and BK2 allow the Brake to lift under the control of the regulator Qr gv Suo U applies power to the GFC Regulator Hoistmotor Field Power Supply terminal G3 and direction selection circuit terminal G7 G8 for down The Hoistmotor Field voltage rises from standing voltage to maximum approximately 200VDC T FSX and 1FR if used lock out Approach Speed terminal G12 PX pulls in just after the rest of the run relays due to the UDT contact in series with its coil This allows the FSX normally closed contact in the Approach Speed circuit terminal
94. torque if they are unable to close due to a blown fuse dirt in the tracks or some other cause DOOR OPEN and CLOSE DELAY The doors are prevented from trying to close immediately after they have stopped opening or from trying to open immediately after they have stopped closing thus reducing the strain on the door operator DOOR OPEN OR CLOSE FAILURE TIME DUPLEX OR TRIPLEX If the doors fail to open or close properly the car will be put out of service if it is part of a Duplex or triplex system NOTE The calls will not be cancelled on a Duplex if the doors are not working properly STUCK BUTTON TIMER cuts out a re open signal from the Car and Hall Calls after 25 40 seconds if there is another call in the system This allows the car to respond to other calls TRAVELLING LANTERN DELAY The initiation of the Car Direction Lanterns is delayed 1 second until the car has stopped and the doors have opened enough for the Lantern to be heard outside the car SHUTDOWN TIMERS Two shutdown fault timers are normally provided The Running Shutdown Timer will drop fast speed then shut the car down 5 seconds later if the car has been running continuously for 25 seconds adjustable without passing a floor The Brake Fault Timer will trip if the Brake Micro Switch Input or other Run Monitor Inputs indicate the car is not running when the PLC thinks it should be or indicate the car is running when the PLC thinks it should not be Either timer will r
95. tput which de energizes up run relays The UD relay now shorts the speed reference input to the drive This commands the drive to hold the car at zero speed while the brake sets providing a soft stop BK1 and BK2 de energize causing the brake to set After a brief time delay approximately 1 second UDT and UDTX will de energize This stops the drive de energizing the drive contactor and opening the drive loop NOTE 5 A Shutdown Timer in the PLC will shut the car down if it runs for more that 30 60 seconds without passing a floor change point Synchronous or Advancing The car doors will operate but the car will not move until the timer is reset by cycling the power or cycling the Inspection Switch NOTE 6 A Leveling Cutout Timer in the PLC cuts out leveling after 15 seconds The car will then stop open the doors if it is in the Door Zone then continue to run in response to other calls RELEVEL See also Section 1 8 The sequence on a relevel is the same as a normal run except the PLC prevents the fast speed outputs from energizing so the speed is set to level speed DYNAMIC BRAKING If Dynamic Braking is used the Dynamic Braking contactors piloted by DBP relay will be energized whenever the drive control power is on The contacts of the Dynamic Braking contactors connect the Hoistmotor Armature to the drive as usual If there is a fault in the drive and the Drive Fault contact opens then DBP will de energize the Dynamic Brakin
96. trengthening for the preset time This allows the Hoistmotor to start with full torque When FLR energizes the PLC energizes U and FS and 1FR if used outputs The running contactors P PX UDT UDTX BK1 BK2 energize and SU de energizes SU and SUX open the Generator suicide circuit BK1 and BK2 allow the Brake to lift PX puts the regulator into the Run mode and SUX and PZ apply power to the regulator field power supply SQ MT9a Virginia Controls Inc Section 2 Page 8 input NOTE 1 PX will energize slightly before PZ so that the internal contactor in the regulator does not switch the power to the Generator Shunt Field but PZ does Similarly when the car stops PZ will de energize slightly before PX so that PZ breaks the power to the Generator Shunt Field instead of the regulator s internal contactor This considerably extends the life of the regulator s internal contactor ACCELERATION See also Section 1 6 1 1FR if used and FS 2 selects the speed that the regulator will ramp to The output to the Generator Shunt Field will gradually rise As the Generator Shunt Field voltage rises the Generator Armature output voltage also rises causing the Hoistmotor to accelerate The acceleration rate is determined by the adjustment of the IPC Regulator Refer to the IPC Manual for complete adjustment instructions The speeds that the car will reach on a One Floor or Multi floor Run are determined by the setting
97. will SQ MT9a Virginia Controls Inc Section 1 Page 7 initiate the slowdown sequence if the appropriate call exists The Advancing Floor Change lockout is set 6 The car passes a Down Medium Speed Slowdown target This resets the Advancing Floor Change lockout The Down Slow Speed Target has no effect on the Advancing Floor Relays 7 Repeat steps 5 and 6 for each floor until the car stops NOTE 6 The One Floor Run slowdown distance is less than half the shortest floor height The Two Floor Run slowdown distance is less than half the shortest distance between two adjacent floors NOTE 7 On Inspection operation the initial false advancing pulses are not used and the Advancing and Synchronous floor relays pulse from the Up Slow and Up Medium Speed Selector targets The Floor Relays are reset at either terminal landing If the Up Slowdown Switch and the Low Level Door Zone Switch are energized at the same time this will reset the floor relays to the Top Landing If the Down Slowdown Switch and the Low Level Door Zone Switch are energized at the same time this will reset the floor relays to the Bottom Landing If a Main Landing Reset Switch is used this will reset the Floor Relays to the Main Landing whenever it is energized It is recommended that a Main Landing Reset Switch be used when the bottom landing is seldom used 12 CAR CALLS Momentary closure of a Car Call Button will energize the corresponding Car Call Button Input The PLC

VCI -- Sequence of Operation Manual

Contents

Download Pdf Manuals

Related Search

Related Contents