SST-2000 Series Universal Speed Switch & Speed Transmitter
Contents
1. signal source into counters or other instruments The frequency of the signal is equal to that being applied at the signal input terminals 5 amp 6 This output has an internal resistance of 1 kQ Using DPM 105 meters as external speed indicators You can use the DPM 105 as an external indicator You can connect one or more DPM 105 meters to your SST 2000A H The 0 1 mA meter output of the SST 2000A H terminals 7 and 8 is factory calibrated into an external load of 40 Q The load resistance of the DPM 105 is 95 Q Connecting one DPM 105 1 Onthe DPM 105 retain the jumper across terminals 1 and 2 2 Connect the meter as shown in Fig 3 3 3 Calibrate the SST 2000A H Fig 3 3 Connecting one DPM 105 to the SST 2000A H 55T 20004 H DPM 105 SPEED SuvITCH Keep the jumper JUMPER 5 between terminal 1 00 O 4 DC Power g amp 2 on the DPM 105 x i T Meter O 1rn 8 Meteri Ode rae De Power 14 Powering External Devices Confirm the meter is properly connected to the SST 2000A H Use a frequency generator e g F 16 to apply full scale frequency to terminal 5 HI amp 6 COM on the SST 2000A H Maximum signal input is 50 Vrms for a standard unit Adjust the METER CALIBRATE potentiometer on the SST 2000A H for the appropriate full scale reading on each DPM 105 Use a DPM 105 data sheet if necessary to calibrate the DPM 105 meters2. Alternate Method 1 if you cannot guarantee engine overspeed 1 Runthe engine at the desired speed using 29 Chapter 4 4 an RPM indicator tachometer operating from one of the proportional outputs of the SST 2000A H an independent meter mounted elsewhere on or near the engine Wait for the RPM to stabilize When RPM is stable select the appropriate set point trim pot Follow the procedure in Alternate Method 1 steps 1 10 Alternate Method 3 Adjusting individual set points in high noise 30 1 If high ambient noise makes it impossible to hear the relay click Disconnect the wire from the center post of the SST 2000A H set point relay being adjusted either one of the other two contacts on the same relay Mark the wires or position them so they can be correctly reattached Connect an ohmmeter to the center terminal of this relay and to either one of the other terminals of this relay If adjusting Relay 1 connect the ohmmeter to terminals 18 amp 17 or 18 amp 19 The ohmmeter will indicate either a short or an open condition depending on which terminals are chosen Adjust the relay as outlined in Method 1 1 10 When the relay trips the ohmmeter will show a short or an open opposite to the indication it had before the relay tripped Reattach the wires to the relays Repeat the above procedure for other set points to be changed Calibrating the Speed Switch Verifying Set Point Values
3. Connecting more than one DPM 105 1 Remove the jumper across terminals 1 and 2 on each DPM 105 2 Connect the meters as shown in Fig 3 4 3 Calibrate the SST 2000A H Fig 3 4 Connecting more than one DPM 105 to the SST 2000A H 57 2000 44H st SPEED SMITCH DPRHOS OO OO At 248 4 DC Pomeri a f hleter j Cb 1 mA ee No jumper 5 bletet D Ima bebweern terminal 142 ETN IL DE Powerit Confirm the meter is properly connected to the SST 2000A H Apply full scale frequency to terminal5 HI amp 6 COM on the SST 2000A H Maximum signal input is 50 Vrms for a standard unit Adjust the METERCALIBRATEpotentiometeronthe SST 2000A H forthe ap pro pri ate full scale read ing on each DPM 105 Use a DPM 105 data sheet if necessary to calibrate the DPM 105 meters 15 Chapter 3 Powering Zero Velocity Pickups and Other Loads The regulated 14 Vdc supply brought out at terminals 11 amp 4 has a capacity of 40 mA This output can power zero velocity pickups e g M928 and digital indicators like a DPM 105 1 Connect the M928 pickup as indicated inFig 3 5 2 Jumper terminals 11 and 30 to desensitize the input signal to a 1 0 V threshold 3 Adjust signal sensitivity if necessary See page 27 for instructions on how to adjust input sensitivity Fig 3 5 Jumper terminals 11 and 30 to desensitize the input signal circuit toa one volt threshold S
4. Gi Gi T 2 3 3 4 2 3 4 5 Calibrating the Speed Switch Changing the full scale input frequency range You can set the standard full scale frequency range from as low as 0 80 Hz to as high as 0 20 kHz 1 Remove the top plate from the SST 2000A H to reveal the A DIP switches 2 Use Table 4 1 page 23 or the underside of the top plate bottom of Fig 4 9 page 22 to determine the correct DIP switch settings 3 Calibrate the SST 2000A H using the procedure on page 22 Input frequency range less than 80 Hz full scale The full scale frequency input range is usually set up at the factory when an SST 2000A H is ordered The SST 2000A H can easily be field modified for any standard full scale input frequency range from 0 80 Hz to 0 20 000 Hz using the procedure Recalibration of Full Scale Input Frequency Range Field changing the SST 2000A H to accept input frequencies Jess than 0 80 Hz full scale is not recommended Damage might result that could void the product warranty Please contact the Dynalco Customer Service Department at 954 739 4300 for guidance in arranging for a low input frequency range Input frequency range greater than 20 000 Hz full scale The full scale frequency input range is usually set up at the factory when an SST 2000A H is ordered The SST 2000A H can easily be field modified for any standard full scale input frequency range from 0 80 Hz to 0 20 000 Hz using the procedure Recalibration o
5. Usea no 1 or no 2 Phillips screwdriver to remove the top plate of the switch 2 The underside of the plate contains instructions for how to latch set point relays on alarm actuate relays on overspeed actuate 2 relays simultaneously as DPDT relay de energize relays on alarm change proportional output to 0 5 Vdc or 0 10 Vdc recalibrate the full scale input frequency range switch A settings WHITH ALLE 2c PROF OUT ZERO SIIMCHESO FF oO Z RELAYS ENERGIZE ON ALARM DO NOT LATCH ALARM OH UNDERSP EED PROP 2 AND P ROP OUT _20m A OUT SAH SAP 3 OFS SF 40S S F 4 DE 5 Rh3 DE 5 F 1 DPOT 5 P 4 LATCH S P 2 DPDT 5 F 3 LATCH S F 4 DE S F 2 OS S F 2 LATCH c F 4 LATCH S F 1 OS g F2 DE F 40M PROF OUT SV PROF OUT a a e f om so ahw ff mm 4 oo ABBREVIATIONS S F SETPOINT OS OVERSPEED WS UHDERSPEED DE DEENER GEED a CE REFER T S57 2000 A 2H MAN UAL FOR MORE INFO FREQ RANGE ae METER CAL Q FREQUENCY RANGE SWITCH AFTER SETTING RAHGE STE HAT TRA FO R oe ATO PEM TERMIBALSS aT AT FULL SCALE FAE U EMC ho h hoo oo SIGNAL lt SENSITIVITY mau As SWITCH A GN POSITION VS FRCEQUCNCY RANGE IN KILGHERTZ 18 08 0 40 2481 1 43 23 8 43 17 4a 17 22 So 2 3 081 3 38 7838 5 72 851 45 65 147 8 53 53 1 2 3 5 5 8 23 1 09 14 86 742 2 1 1 1 4 13 14 4 1 9 41418 25 525 32 15632 42 Tide 55 753 09 1 47569 01 1 o 1 5 a
6. adjust a set point relay to a value lower than the current operating speed the relay will trip You will need a 0 1 mA meter for this procedure If a meter was supplied with the speed switch you can use it Otherwise you can use a DPM 105 meter or any 0 lmA ammeter The external meter should be calibrated 0 1 mA 0 to full scale input frequency of the SST 2000A H See the specification sheet or serial number label that accompanied the unit for the full scale frequency value 1 Observe polarity Connect an external 0 1 mA meter to terminals 70C amp 8 4 Depending on the set point to be adjusted connect a temporary jumper from Terminal 16 to 12 for Set point 1 or Terminal 16 to 13 for Set point 2 or Terminal 16 to 14 for Set point 3 or Terminal 16 to 15 for Set point 4 The 0 1 mA meter will now indicate the current value for the chosen set point see Fig 4 14 page 31 If necessary first adjust the selected set point using procedures outlined in Adjusting Individual set points page 28 Remove the temporary jumper The output from terminals 7 amp 8 will again provided the standard 0 1 mA proportional output Repeat steps 1 5 for additional set points Index C calibrating 19 21 23 25 27 29 31 commons 10 contact closure 27 CSA Class I Div 2 Grp D H series 4 general certification A series 4 current loop isolator 10 dc power 10 dimensio
7. the correct full scale frequency range see page 22 2 Tools required Either a very thin bladed screwdriver or a transformer alignment tool signal generator Dynalco s F 16 or equivalent 3 Provide a signal source Use an F 16 signal generator or similar zero crossing signal source or use the frequency signal generated by the magnetic pickup on the engine 4 Apply a frequency signal to terminals 5 amp 6 This frequency input should equal the target RPM value of the set point being adjusted RPM x No ofteeth or holes on flywheel Setpoint Frequency Hz P For example Calculate the set point frequency for a gear with 72 teeth rotating at 800 RPM Teamo T D 960 Hz to terminals 5 amp 6 Alternate Method 1 Adjusting set points while the engine is not 28 running Use a signal generator to adjust individual set points when the engine is not operating and if you do not have an analog RPM meter 1 Disconnect the wires to terminals 5 amp 6 Mark or position the wires to assure correct replacement Calibrating the Speed Switch 2 Apply the calculated set point frequency to terminals 5 HI amp 6 COM 3 Apply operating power to the SST 2000A H See lid of your SST 2000A H or spec sheet for power choices 4 Select the appropriate set point trim pot 5 Turn the pot Counterclockwise to lower the set point value reduce the speed at which the set point relay will trip Clockwise to raise the set
8. without actuating the relays Requires an external meter 0 1 mA and 4 20 mA standard 0 5 Vdc or 0 10 Vdc field selectable Repeater output drives counters and self powered tachometers Regulated 14 Vdc output powers active pickups accessories and meters e g DPM 105 MTH 103D SPD 100L LST 100L Current source up to 50 mAdc output always included Specifications Electrical Input Signal Frequency Range Waveforms Input Signal Sensitivity Input Impedance Power Input Proportional Output Output Current Span zero adj Auxiliary Meter Output Supply Output Repeater Output Output Ripple and Noise Response Time Linearity Stability Getting Started 0 20 kHz standard field adjustable 0 0 1 Hz special order 0 80 Hz special order 0 50K Hz special order Accepts pulsed sinusoidal square TTL or CMOS 25 mVrms typical factory setting 5 mVrms to 100 mVrms field adjustable 50 Vrms maximum for standard units 1 0 volt threshold requires input signal desensitizing Nearly infinite at low signal levels 10 KQ min at signals exceeding 15 0 V peak 1 0 V peak 115 Vac 10 47 420 Hz 22 30 Vdc maximum 5 W or 150 mAdc 220 Vac 50 60 Hz optional 0 1 mAdc standard 4 20 mAdc standard 0 5 Vdc or 0 10Vdc field selectable for external load resistance of 20 kQ or higher Custom ranges available MAXIMUM LOAD 1 kQ
9. 0 62 DIAMETER Dimensions in inches centimeters Chapter 1 Models Features No Of spe iat moder MOA Ot 3rd Party Certification s A series standard relays SST 2000A a CSA general certification LR 92270 SST 2200A ABS type approval CE 89 336 EEC Light Industrial SST 2400A CE 72 23 EEC Low Voltage Directive H series hermetically sealed relays SST 2000H oo CSA Class I Div 2 Grp D LR 45322 SST 2200H CE 89 336 EEC Light Industrial CE 72 23 EEC Low Voltage Directive Approval contingent upon housing an SST 2000H series device in a CSA certified enclosure Signal Sources Input Frequency Alarm Set Points Alarm Settings Alarm Disable Alarm Reset Set Point Verification Proportional Outputs Output Power Output Range Field programmable for sensors including contact closure input magnetic pickups ac generators contact closures photocells Full scale values from 0 0 1 Hz 6 pulses minute to 0 20 kHz Field adjustable range and sensitivity control SST 2000A H when only proportional output is required SST 2200A H SST 2400A H Alarms are field configurable for overspeed underspeed energize de energize latch auto reset Disable all alarms for startup conditions and special functions Momentarily reset all latched alarms Permanently converts all latching alarms to auto reset Integral VERIFY permits viewing and setting of set point value
10. 5 P 1 DE 5P 4075 7 T S P 2 Ors SST 2400A H series switches have four set point relay adjustments aa te a poe IP switches Band aiena i eee SST 2200A H series switches only SP 4 LATCH 3 G 3 G 2P 2DE have relays 1 and 2 adjustable S F 2DPOT 2 F 2 Fl 10 PROF OUT using DIP switch C S PSLATCH 1 F 1 F sv PROP OUT SST 2000A H switches have no set point relays The underside of the top plate contains labels for each DIP switch setting Resetting a latched relay To momentarily reset a latched relay jumper terminals 32 and 7 25 Chapter 4 Set points 3 amp 4 and selecting DPDT trip WHEN ALL B SWITCHES ARE OFF relays 3 and 4 are energized underspeed non latching all relays are SPST EXAMPLE To set relays 3 and 4 to actuate de energize and latch on overspeed turn on B1 B3 B5 B6 B7 and B8 THE EFFECT OF TURNING B SWITCHES ON Turn on B to LATCH set point 3 on alarm B2 ACTUATE relay 4 simultaneously with relay 2 creating two Form C contacts for set point 2 DPDT relay LATCH set point 4 on alarm ACTUATE relay 3 simultaneously with relay 1 creating two Form C contacts for set point 1 DPDT relay ee oe ENERGIE revann Set points 1 amp 2 0 5 amp 0 10 Vdc proportional output WHEN ALL C SWITCHES ARE OFF the proportional output is 4 20 mA relays 1 and 2 are energized underspeed non latched EXAMPLE To change the proportio
11. 57 2000 4 H SPEED Sul CH 5 POWERED PICKUP 16 Powering External Devices Driving an SPV 200 Solenoid Pneumatic Valve WARNING TO AVOID SPV 200 COIL DAMAGE Use a current limiting resistor in series with the dc power source and the transferring relay contacts The SPV 200 coil has a resistance of 50 Q and requires 6 Vdc to trip Switching the Regulated 14 Vdc Supply The regulated 14 Vdc supply at terminals 11 amp 4 does not have the capacity to drive the SPV 200 continually When the SST 2000A H speed transmitter is supplied with the Pneumatic Trip Option for Overspeed Relay 1 transfers for only 100 milliseconds on overspeed the 14 volt supply can then be used with a series limiting resistor to power the pneumatic trip Use a 1 4 watt 47 50 Q resistor in series with the 14 volt supply Fig 3 6 Switching the S8T 2000AII spPy 204 regulated 14 Vdc Relay 1 Gonbiacl AT 5 03 my supply 14 ae a ay i Common Vrug 1 4 W Switching 28 Vdc When switching 28 Vdc into the coil use a 5 10 watt 180 Q resistor in series with the SPV 200 coil Fig 3 7 Switching the Any SST 2000A H SPV 200 28 Vdc supply Relay Contact 150 03 m ae cn Vie Ay Wy SOMEN 3 10W 17 Chapter A Calibrating the Speed Switch Chapter 4 Locating the programming switch instructions 20 Fig 4 8 A full description of the programming switches and controls is located under the top plate of the SST 2000A H 1
12. H A TRIM FOR 10 0V 1 AT OPEN TERMINALS 8 amp 7 AT FULL SCALE FREQUENCY SIGNAL Ay SENSITIVITY uaxe BWITCA A ON FOF THON VF FRESUENSY RANGE IN KII DAF STZ 1 8 08 1 2 8 1 13 3 8 13 17 4 8 17 22 5 8 22 3 6 8 3 38 7 8 38 5 5 7 2 8 48 63 1 4 7 8 63 83 1 2 3 5 6 8 83 1 09 1 86 1 12 2 1 1 1 4 Bele 4 1 9 2 5 5 25 3 2 3 7 4 2 5 5 7 2 5 3 6 9 1 4 33 36 Calibrating the Speed Switch Table 4 1 Table of Freq Range Switch A ON Freq Range full scale frequency and in kHz Positions in Hz the corresponding switch 0 08 0 10 8 80 100 peg cena 0 10 0 13 2 8 100 130 0 13 0 17 3 8 130 170 0 17 0 22 4 8 170 220 0 22 0 30 5 8 220 300 0 83 1 09 1 2 3 5 6 8 830 1 090 0 86 1 12 1 860 1 120 3 20 4 20 3 200 4 200 4 20 5 50 4 200 5 500 12 0 15 5 2 3 4 6 7 12 000 15 500 15 1 20 0 1 2 3 4 5 6 7 15 100 20 000 23 Chapter 4 Calibrating the 4 20 mA Proportional Output 24 You must calibrate the speed switch if the standard proportional output of 4 to 20 mA is changed to 0 5 Vdc using switch Cl or 0 10 Vdc using switch C2 To calibrate the new proportional output 1 2 Attach a digital voltmeter to terminals 9 amp 10 Apply 10 of the full scale frequency to input terminals 5 6 Adjust the PROP OUT ZERO adjust potentiometer See Fig 4 10 below to y
13. SST 2000 Series Universal Speed Switch amp Speed Transmitter An Operator s Guide ert p gt R KY lt 3 aul 2 Site BY e qe Copyright Specifications and information herein are subject to change without notice Dynalco Controls reserves the right to make changes to the equipment described herein to improve function or design Although the information contained in this manual has been carefully reviewed and is believed to be reliable Dynalco Controls does not assume any liability for special indirect incidental or consequential damages arising out of the application or use of the equipment described herein Warranty is limited and cannot exceed the price paid for the product upon which the warranty is based Copyright 2001 All rights reserved Trademarks SST 2000A H SST 2200A SST 2400H are trademarks of Dynalco Controls Dynalco Controls 3690 N W 53rd Street Fort Lauderdale FL 33309 U S A T 954 739 4300 Fax 954 484 3376 www dynalco com mailbox dynalco com Printed in U S A Chapter 1 Chapter 2 Chapter 3 Chapter 4 Contents Getting Started 1 About your speed switch 0 eee eee ees 2 WI GUE Siete hw ree pee iy ale a Ace kta a ised hace a ha ee eee wk Baas 4 BCALUTCS cra dnd MPS Eek ew bbe eee Pee de hg YS ed Ree ak ae 4 SpeciiCatiOns ccs sckvdcatera dagag dhe dena me sha dete we Aga eRe 5 Installing the SST 2000A H 9 Mounting the Umit 00 ehveeeaeteei eee R
14. You can view and adjust the set point values without having to run the engine NOTE The SST 2000A H no set points does not have set points 1 Jumper terminal 16 with the terminal that corresponds with the set point you want to view for SSTO2200A H and SST 2400A H Set point 1 jumper 16 to 12 The temporary jumper does not interfere with the normal operation of any relays Set point 2 jumper 16 to 13 Set point 3 jumper 16 to 14 Set point 4 jumper 16 to 15 The 4 20 mA proportional output terminals 9 amp 10 is NOT affected by this procedure 3 2 When you jumper the two terminals the 0 1 mA output meter connected to terminals 7 and 8 disconnects and displays the RPM frequency rate etc value at that set point When the jumpers are removed the meter switches back to its normal operation The 14 Vdc pulsed output is not affected by this procedure VALIDNAIC Fig 4 14 Verify the set point values and view the RPM frequency rate etc on the 0 1 mA output PROPORTIONAL gt meter connected to MAIN OUTPUT terminals 7 amp 8 METER READS S P 1 RPM 14 VDC OUTPUT Shown SETPOINT 1 p is the procedure for SETPOINT 2 3 verifying Set point 1 _ SETPOINT 3 SETPOINT ADJUSTMENTS SETPOINT 4 VERIFY SETPOINTS 0T 31 Chapter 4 Adjusting Set Point Values 32 WARNING You can adjust set points while the engine or other device is operating However if you
15. ange over a limited input range e g 0 1 mA and 4 20 mA over 800 1000 Hz input frequency 40 F to 160 F 40 C to 71 C operating 40 F to 180 F 40 C to 82 C storage 2 6 lbs 1 17 kg Chapter 2 Installing the SST 2000A H Chapter 2 Mounting the unit The SST 2000A H is installed using standard hand tools It is generally mounted in a panel or enclosure using standard practices About Electrical Connections Internal Commons Isolation WARNING AVOID DAMAGE WHEN DC POWERED Install a current loop isolator between the 4 20mA output and the load if the load does not reference the same common as the SST 2000A H Signal input low side terminal 6 is common to the auxiliary output low side terminal 7 to the dc supply terminal 4 and to the main proportional output low side terminal 9 Relay contacts are always isolated When powered with ac all circuitry is isolated from the power line by the built in supply transformer When powered with dc the transmitter output is not isolated from the dc power source Any load driven by the transmitter i e recorder controller etc must have the same common as the negative side of the dc supply Install a current loop isolator between the 4 20mA output and the load if the load does not reference the same common as the SST 2000 Fig 2 1 Electrical Connection Drawing Use shielded cable BOER connect ungrounded shield to termina
16. be tested regularly The SST 2000A H series is a speed switch and signal transmitter that provides alarm set points for over and underspeed control for sequential startup and shutdown switching for engines machines I P drivers instrumentation process control recording fet gt e e oe O measurement How it works The SST 2000A H accepts a full scale frequency input value from 0 0 1 Hz 6 pulses per minute to 0 50 000 Hz Standard 0 80 Hz to 0 20 000 Hz Examples of input devices include passive or active magnetic pickups shaft encoders contact closures flow meters photocells The speed switch converts frequency input speed rate into linear proportional dc outputs 0 1 mA standard meter out 4 20 mA standard proportional out 0 5 Vdc switch selectable 0 10 Vdc switch selectable It provides 0 2 or 4 relay trip set points depending on the model Getting Started Physical Dimensions Fig 1 1 Top and side view of the SST 2000A H Dimensions in inches and centimeters Special explosion proof housings kits complete with mounting hardware are also available See XP rated housings on page 6 SST2400A TVNOES Pi r non E o 23 Eh UE GOL ane G j iwori uel SINIOd1ES REENER Ea PI lt e JJVPFER TA 11 PER LUNTAL CLIFURE S 3 AL JJVEPZR IJ V IAT N ASM SSI A METRE 77 Tr RESET QAR PHE VERI 7 VENTIAT Nie 025
17. ea aoe a eee ee 10 About Electrical Connections 5 i 424 440h44u64en de diweareseseaaeand 10 Connecting Signal Inputs n 0 0 ccc eee nee 11 Powering External Devices 13 Powering an SPD 100 SPD 700 or other frequency instruments 14 Using DPM 105 meters as external speed indicators 4 14 Powering Zero Velocity Pickups and Other Loads 16 Driving an SPV 200 Solenoid Pneumatic Valve 0000 17 Calibrating the Speed Switch 19 Locating the programming switch instructions 000 00 20 Changing the full scale input frequency range 0 0000 e eee 21 Input frequency range less than 80 Hz full scale 0 000005 21 Input frequency range greater than 20 000 Hz full scale 21 Calibrating the SST 2000A H nnana annaa aaaea 22 Calibrating the 4 20 mA Proportional Output n annaa saaana enaa 24 Programming Set Points and Relays 0 0 0 00 eee 25 Adjusting Signal Sensitivity 0 0 cee eee nes 27 Response Time is ces5 bo acstcn eatin sniee alee AE A EEE EE EE AA 28 Adjusting Individual Set Points 2 0 0 0 cc eens 28 Verifying Set Point Values 0 0 eee eens 31 Adjusting Set Point Values 0 ccc ce een nes 32 iii Chapter 1 Getting Started Chapter 1 About your speed switch WARNING When the SST 2000A H Series Speed Switch Transmitter is used as the primary overspeed shutdown device it must
18. er terminals 30 and 11 to desensitize the unit to about 1 Vrms Signal Sensitivity pot setting does not affect this procedure Fig 4 13 Jumper terminals 11 to 30 to desensitize the SST 2000A H for contact closure input ore SIGNAL INPUT O 1 1 METER OUTP UT PROPORTIONAL MAINO UTP UT SETPOINT 2 SETPOINT SETAR OINT 4 VERIFY SETRCINTS 0 U METER CALIBRATE SETPOINT ADJUSTMENTS z Q 50g m z RELA HO RELA HO 4 B 48 8 REP EATER OUT JUMPER To TERR FOR COMTHCT CL JUMPER To TERR TO GD FABLE ALL JUMPER To TERR RE ET OF PREVE 27 Chapter 4 Response Time Response time is the time required for the proportional outputs to change from 10 to 90 of the maximum RELAY RESPONSE calibrated value for an instantaneous step change of the input frequency Response time affects the transfer Contact Dynalco if you need a different speed of the relays relay response time Standard response time is 150 milliseconds over all standard input frequency ranges 0 80 Hz full scale to 0 20 000 Hz full scale Response times below 80 Hz full scale are proportionally slower While other response times can be provided field modification is not recommended since damage might result that could void the product warranty Contact Dynalco if you need a different relay response time Adjusting Individual Set Points 1 Verify that the SST 2000A H is calibrated to
19. f Full Scale Input Frequency Range Field changing the SST 2000A H to accept input frequencies greater than 0 20 000 Hz full scale is not recommended Damage might result that could void the product warranty Please contact the Dynalco Customer Service Department at 954 739 4300 for guidance in arranging for a high input frequency range 21 Chapter 4 Calibrating the SST 2000A H WARNING Calibrate the speed switch e immediately after any contact change in Switch A e before adjusting set points or proportional output You must calibrate the SST 2000A H if you have made a change in the full scale frequency range changed contacts to DIP switch A 1 Disconnect any meter connected to terminals 7 amp 8 Mark or position the wires so they can be correctly reattached later 2 Connect a digital voltmeter across terminals 7 amp 8 3 Connect a frequency generator e g F 16 at terminals 5 HI amp 6 COM Use the frequency generator to input the new full scale frequency 4 Adjust the FREQ RANGE TRIM potentiometer for 10 00 Vdc on the voltmeter See Fig 4 9 5 Reattach the meter that is normally connected to terminals 7 amp 8 Observe polarity Fig 4 9 The contact arrangements for the 2 fe 1 22 FREQ full scale frequency RANGE TAM A range switch A are on lo F METER CAL underside of the top g plate 6 FREQUENCY 5 A RANGE SWITCH 4 AFTER SETTING RANGE 2 E SWITC
20. ield 10 of full scale proportional output on the voltmeter Fig 4 10 The PROP OUT ZERO and PROP OUT SPAN PFOP OUT ZERO adjustments are located in the upper right corner PROP under the top plate of the OUT Q SST 2000A H SPAN Apply 100 of full scale frequency to terminals 5 amp 6 Turn PROP OUT SPAN adjust potentiometer See example below to yield 100 of full scale proportional output on the voltmeter Repeat steps 2 3 4 and 5 three or four times to assure accuracy EXAMPLE A unit calibrated for 0 500 Hz input is being recalibrated to 0 10 Vdc proportional output from 4 20 mAdc proportional output Apply 10 of full scale 50 Hz to terminals 5 amp 6 e Adjust PROP OUT SPAN adjust potentiometer to yield 1 000 Vdc on the voltmeter Apply full scale frequency 500 Hz to terminals 5 amp 6 Turn PROP OUT ZERO adjust potentiometer to yield 10 00 Vdc Repeat 3 or 4 times for accuracy Calibrating the Speed Switch Programming Set Points and Relays Remove the top plate from the SST 2000A H to reveal DIP switches B and C Use DIP switches B and C to program relay set points to energize OFF de energize ON on alarm non latch OFF latch ON on alarm actuate SPST OFF DPDT ON trip on alarm change proportional voltage output Fig 4 11 The DIP switch settings available to you depend on the model of speed switch you purchased 5P 3075 8
21. l 4 24 VDE Route power line and sisit relay connections NHL separate from signal eae meter and reset lines MLIL CU1FUL to prevent electrical noise interference Terminals 4 6 7 and 9 are internally tied ee ETPOINT 1 No together to circuit common unless unit ent pee has signal isolation transformer In that any suipon s case terminal 6 is isolated PROPORTIONAL MAIN OJIP LAS NDZ SLIPCINI ACL USTMENTS JUMPTR OG TAR AO 7T gt i si QIAN VENT LALSIENGS 10 Connecting Signal Inputs Connecting a PG 278 Pulser Installing the SST 2000A H Connect signal source Common to terminal 6 on the SST 2000A H Connect signal HI to terminals on the SST 2000A H Fig 2 2 Connecting a PG 278 Pulser to the SST 2000A H C104 CABLE 2 ima aS Feu S Ta00AH SPEED SMTH Doup Signed ques wey E ouput Sorel oommorh F cae Ground JUMPER Pa ater Terminals 11 and 30 on the SST 2000A H are jumpered to create a one volt threshold 11 Chapter 3 Powering External Devices Chapter 3 Powering an SPD 100 SPD 700 or other frequency instruments The SST 2000A H has a repeater output that can be used to power external frequency instruments A square wave 14 volt peak to peak zero based positive going is brought out at terminals 29 and 4 common to drive self powered digital tachometers such as the SPD 100 SPD 700 and MTH 103D or to use as a conditioned high level
22. nal output to 0 10 Vdc and set relay 2 to actuate energize and latch on overspeed turn on C2 C6 and C7 26 THE EFFECT OF TURNING C SWITCHES ON Turn on C to a 1 Change proportional output to 0 5 Vdc Confirm C2 is OFF C2 Changes proportional output to 0 10 Vdc Confirm C1 is OFF C3 DE ENERGIZE relay 2 on alarm C4 ACTUATE relay 1 on overspeed non latch C5 LATCH relay 1 on alarm LATCH relay 2 on alarm C7 ACTUATE relay 2 on overspeed non latch c6 Laten relay 2 on alarm o C8 DE ENERGIZE relay 1 on alarm Requires recalibration Adjusting Signal Sensitivity Desensitizing Standard Inputs Calibrating the Speed Switch Signal sensitivity is factory set to 25 mVrms about 35 mV peak or 70 mV peak to peak and satisfies most applications Fig 4 12 The signal sensitivity control is located under the A DIP switch FREQUEHCY RANGE SWITCH FIER SEIT MG RANGE WHH TRAM FOR too A OPEN OPM AILS A Tr ar FULL SCALE f REWER Shu Bae SIGNAL O SENSITIVITY es Higher sensitivities can be more vulnerable to noise To raise sensitivity Turn the SIGNAL SENSITIVITY potentiometer Fig 4 12 clockwise At full clockwise rotation sensitivity is approximately 5mVrms To lower sensitivity Turn the SIGNAL SENSITIVITY potentiometer counterclockwise At full counterclockwise rotation the sensitivity is approximately 100 mVrms Desensitizing Contact Closure Jump
23. ns 3 DPM 105 14 electrical commons 10 connections 10 specifications 5 environmental specifications 7 explosion proof housings 6 external devices 13 15 17 DPM 105 14 MTH 103D 14 SPD 100 14 SPD 700 14 SPV 200 17 features 4 frequency equation for setpoints 28 table 23 full scale input frequency range 21 housings 6 input signal 11 desensitizing 27 full scale range 21 sensitivity 27 installing 9 11 isolator 10 latched relay 25 resetting 25 model numbers 4 output 24 4 20 mA 24 PG 278 pulser 11 pickups powering 16 power ac 10 dc 10 external devices 13 15 17 M928 16 SPV 200 17 zero velocity pickups 16 proportional output 24 relay 25 resetting 25 response 28 setpoints 6 20 setpoints 25 1 amp 2 26 3 amp 4 26 5 10 V prop output 26 adjusting 28 32 DPDT trip 26 verifying 31 size 3 SPD 100 14 SPD 700 14 specifications 5 XP housings 6 33
24. point value increase the speed at which the set point relay will trip 6 Turn the pot slowly so as not to pass the target set point by a large amount The pot has fine resolution so a large change in set point value may take several turns 7 While adjusting the pot listen for the relay to trip at the set point You can hear a distinct click when the contacts transfer If high ambient noise makes it impossible to hear the relay click use an ohmmeter as described in Alternate Method 2 below 8 Fine tune the adjustment After the relay trips slowly REVERSE the adjustment of the set point pot until the relay again trips Again slowly turn the pot FORWARD until the relay trips 9 Reattach the wires to terminals 5 HI amp 6 COM Observe polarity 10 Repeat the above procedure for other set points to be changed Alternate Method 2 Adjusting Individual Set Points While The Engine Is Operating A non critical overspeed value is one that will not stress the engine Use Alternate Method 3 to adjust set points while the engine is operating at a non critical speed NOTE when the set point value is reached the relay will cause an engine shutdown or activate whatever is connected to that relay A critical overspeed is typically the actual engine shutdown overspeed running Use Alternate Method 3 to adjust set points while the engine is operating at NON CRITICAL speed only the engine at this speed is generally not desired Use
25. smitter input from the probe or sensor XP Rated Housings optional ENC 6210 ENC 6311 ENC 3000 ENC 4000 ENC 5000 XP Cast Housing 8 H x 10 W x 5 D 100 s window P button UL CSA Class Groups C D Class Il Groups E F G NEMA 3 4 XP Cast Housing 8 H x 10 W x 5 D 100 s window UL CSA Class Groups B C D Class Il Groups E F G NEMA 3 4 Sheet Meta l 6 H x 9 W x 4 D NEMA 1 No Window Sheet Meta l 8 H x 10 W x 4 D NEMA 12 No Window XP Cast Housing 7 H x 9 W x 5 D No Window UL CSA Class Groups C D Class Il Groups E F G Options Enclosures Open Pickup Pneumatic Trip Underspeed Class C Logic Expanded Scale Input Environmental Temperature Range Weight Getting Started XP and NEMA rated enclosures are available Relay 1 switches in the event of an open or disconnected magnetic pickup Relay 1 will still react when its set point is traversed field configurable NOTE Not available with signal isolation transformer option Pulses relay 1 for 100 milliseconds Trips Dynalco SPV 200 Solenoid Pneumatic Valve on overspeed optional Arms relay 2 as set point 2 is traversed on increasing speed Pulses relay 2 as set point 2 is traversed on decreasing speed Use for tripping the pneumatic SPV 200 on underspeed or for general underspeed electrical shutdown Provides full meter output full proportional output and full set point r
26. with 115 220 Vac or 30 Vdc power 750 ohms with 22 Vdc power linear between 22 and 30 Vdc Independent of load resistance up to the rated load resistance 5 minimum of full scale Proportional 0 1 mAdc filtered for meter or recorder loads up to 750 Q Regulated 14 Vdc 5 40 mAdc maximum load Square wave 14 V peak to peak zero based positive going 0 1 of full scale maximum over 10 to 100 of full scale 150 milliseconds 10 to 90 rise standard Full scale frequency ranges below 80 Hz are proportionally slower 0 1 of full scale 0 05 typical all outputs Less than 0 05 of full scale change with a 10 change in supply voltage Temp coeff 0 01 per F 0 018 per C Chapter 1 Relays A Series Contact Rating H Series Contact Rating Alarm Set Points Hysteresis Isolation Transformer Field programmable by switches for overspeed underspeed energize de energize latch auto reset SPST DPDT 2 DPDT set points maximum 6 0 A 28 Vdc or 115 Vac resistive 2 0 A 220 Vac 1 0 A into 500 mH for up to 100 000 cycles SPDT For DPDT Relays 1 amp 3 and 2 amp 4 work together as separate DPDT trips 5A resistive 24 Vdc 1 0 A 120 Vac 0 5 A 220 Vac SPDT For DPDT Relays 1 amp 3 and 2 amp 4 work together as separate DPDT trips Adjustable 25 turn cermet potentiometers 1 of full scale frequency Optional Isolates the tran
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