User`s Manual - Whaley Food Service
Contents
1. ae a a I ae f l 9S2 CW W CCW When using potentiometer input remove remove resistor R22 or R2 for 5K input NMpedanee also for 1 5VDC input S NOTE For manual control a 1K potentiometer may be connected to the BT or AT card input terminals Watlow offers a kit as Manual Control Kit part number 08 5362 Using this potentiometer requires removing the specified control card resistor for higher impedance Bias and gain adjustment is required when changing from 4 20mA input to a manual control input or a voltage input 3 Wiring for AC amp DC Input Contactor 10 40A Models CA or CD Semiconductor peee Fuses L1 H 5 L20 H AH Limit Contactor if required 90 240V ac AC Input 3 Phase 2 Leg Wiring AN wanna AN Wiring must conform to National Electric Code NEC safety standards as well as locally applicable codes Failure to do so could result in death or personal injury or damage to equipment A E DOPPI Semiconductor Fuses Limit Contactor if required 3 Wiring Burst Fired 4 20mA 10 40 A BL Semiconductor Fuses L3 A L Limit Contactor if required l BA Iil alll T3 SBL 59 oo N ai 420m Fan 120 240V ac Fan Power model dependent 20 Watts Max Customer Supplied Separate Disconnect Required Watlow VPAC User s Manual 7 Troubleshooting2. To isolate a system problem involving the VPAC answer these questions e Are inputs to the VPAC present e Are outputs from the VPAC present e Are all connections good e Is the load good e Is line voltage within specification e Are temperature control signals present If so then the VPAC power control itself may be the problem The problem may be with the VPAC s control card transformer or solid state relay Use the table below to assist with troubleshooting Corrective Action Symptom Probable Cause No output Fuses blown Check and replace fuses Incorrect input wiring Verify input wiring Incorrect input signal Check temp control output Input signal reversed Verify input wiring Input signal not adjusted See Bias and Gain Adjustment Wrong or missing control card Verify input wiring Check transformer connections Missing load wiring Verify load wiring The SSR s will not function without a load Transformer hot Incorrect transformer Check product amp transformer labels AT amp BT only Uncontrolled output full ON Bad control card or Bias and Gain out of adjustment Disconnect control card try again If no output SSR is okay Check Bias and Gain Adjustment Bad transformer Unplug transformer wires and try again AT amp BT only Bad SSR If full ON or half ON output present with no control card and no transformer solid state relay
3. VPAC User s Manual 2 Specifications 1822 Solid State Relay Power Control with Heat Sink e Solid state contactor AC input CA e Solid state contactor DC input CD Optional Loop Powered Control Card e Burst firing zero cross control 4 20mA BL Optional Transformer Powered Control Card e Burst firing zero cross control Process Input 10 only BT e Phase angle control Process input 10 only AT e SDA Shorted SSR Alarm for Zero cross only Line Voltage 50 60HZ e 120V ac operation e 208 240V ac operation e 2 V ac operation e 380V ac operation e 415V ac operation e 480V ac operation Solid State Relay Control e Single phase single SSR e Three phase two leg control for three wire non grounded load dual SSR e Resistive load only Inputs e Solid state contactor AC input CA ON 90 to 240V ac OFF 0 to 10V ac e Solid state contactor DC input CD ON 3 to 32VDC OFF OVDC e Burst firing zero cross control card BL Input 4 to 20mA only Bias and Gain adjustable Input impedance 500 minimum e Burst firing zero cross control card BT 19 only Input factory adjusted for 4 20mA Bias and Gain adjustable 0 to 12VDC 0 to 25mA Input impedance 300 clip R 22 for 5K voltage input e Phase angle control card AT 19 only Input factory adjusted for 4 20mA Bias and Gain adjustable 0 to 12VDC 0 to 25mA Input impedance 300 clip R 2 for 5K voltage input Soft start 10 seconds approx e 120 240V
4. is bad replace it Bias And Gain Adjustments The VPAC bias and gain can be adjusted for the output of most standard proportional output temperature controls Bias and gain is factory set for an input control signal 0 5VDC or 4 20mA but may require minor adjustments to match the output of a specific temperature control We recommend that bias and gain adjustment be performed using a dummy load In some applications a dummy load may be required if the controlled load can not be turned full ON A dummy load can be easily made by connecting 150 watt lamps in series to match the operating voltage of the VPAC Use the following steps to make adjustments 1 Connect an AC voltmeter across the load or dummy load of the VPAC Connect a DC voltmeter across or milliampmeter in series with the input signal from the temperature controller 2 Apply power to the system 3 Set the output signal of the temperature controller to zero or its minimum output Adjust the bias potentiometer slowly until the VPAC output just comes ON Then turn it in the opposite direction until the output is just full OFF as observed on the output voltmeter 4 Adjust the output of the temperature controller to full ON 5VDC 20mA etc Adjust the gain potentiometer until the VPAC output is just full ON Watlow VPAC User s Manual 8 5 Repeat Steps 3 and 4 until the VPAC turns full ON with a full ON signal from the temperature control and full OF
5. 0mA 120V ac Fan Power 20 Watts Max 75A Only Customer Supplied Separate Disconnect Required Watlow VPAC User s Manual 9 single Phase Wiring 19 Wiring 4 20mA Burst BT r gt a 19 Wiring 4 20mA Phase Angle AT H _ Semiconductor Limit Contactor Contacts FUSe if required 1A Fuses L1 24V ac Power to AT or BT Card ar STR ne ee es ee a 1 i Customer Supplied Wiring 120V ac Power to Transformer Process L2 Wht Input L1 Blk 24V ac Power to EE EE CA Pe ite a a eee eee a Customer Supplied Wiring 277 to 480V ac Power to Transformer fe L2 Wht L1 Bik Cc 5 APE Power EE E E Al orBT Card Customer Supplied Wiring 240V ac Power to m 4 a NOTE The control transformer must be on the same phase as the load See wiring diagram above All hot lines to the transformer should be fused at 1 Amp with the proper line voltage Watlow VPAC User s Manual 6 AN wanna TAN Wiring must conform to National Electric Code NEC safety standards as well as locally applicable codes Failure to do so could result in death or personal injury or damage to equipment AN WARNING AN 2 Wiring examples show L2 in 240V ac or 480 V ac configuration In 120V ac applications L2 is neutral and must not be fused or switched Failure to follow this guideline could result in death or personal injury
6. 10mm Guide Lug Hole 0 2 6mm Mounting Hole le s ol 38mm Mount Semiconductor Fuses Mount optional semiconductor fuses near the VPAC Mounting must conform to code requirements Wiring diagrams show proper connections AN wanna AN Fuse mounting and spacing must conform to local state and national safety codes Failure to conform to codes could result in damage to equipment and or injury to personnel single Phase Wiring 1 Wiring for AC amp DC Input Contactor 10 40A Models CA or CD 2 E E CN NY bY NN eee A warnine AN Wiring must conform to National L1 6 N o Electric Code NEC safety standards Semiconductor as well as locally applicable codes Fuse Failure to do so could result in death or AN 1 a renee personal injury if required A CD A wen A a 5 a Wiring examples show L2 in 240V ac VDC or 480 V ac configuration In 120V ac applications L2 is neutral and must not be fused or switched Failure to follow this guideline could result in death or personal injury V ac or VDC Input Command Signal Depending on Model Ordered 19 Wiring 4 20mA Burst 10 40A BL L1 a R Semiconductor Fuse 1 Limit Contactor A Contacts if required 2 _ TY L2 t I I Semi l conductor ve l Fuse l 3 Limit Contactor AN if required 5 baad ree L1 L2 T1 T2 m aly 4 2
7. F with the minimum input signal from the temperature control Steps 3 and 4 may need to be repeated a few times an adjustment made on one of the potentiometers affects the adjustment of the other potentiometer 6 Remove power disconnect the meters and reconnect the controlled load to the VPAC if required Replace SSR Screw 2 ea 8 32 See Note 4 De Belleville Washer 8 See Note 4 Solid State Relay See Note 3 Thermal pad or a thin coat of thermal joint compound Dow DC 340 Heat Sink typical ss Surface must be clean and flat 2 Use a thermal pad or a thin coat of thermal joint compound Dow DC 340 or equivalent 3 Mount the SSR to the heat sink 4 Use Belleville spring washers and tighten screws alternately until the spring is deflected slightly AN CAUTION Heat sink must be mounted so that the fins are vertically aligned AN CAUTION Heat sensitive component ambient temperature must not exceed 122 F 50 C If overheated unit could fail AN CAUTION Heat sensitive component do not mount SSRs on panels that are painted plastic steel or stainless steel These materials will not remove heat generated by the SSR If overheated unit could fail Feedback Your comments and suggestions on this manual are welcome Please send them to Technical Writer Watlow Controls P O Box 5580 Winona MN 55987 5580 or call 507 454 5300 or fax 507 45204507 The VPAC Users Ma
8. VPAC User s Manual Solid State Relay Power Control Br LOW Watlow Controls 1241 Bundy Boulevard P O Box 5580 Winona Minnesota USA 55987 5580 Phone 507 454 5300 Fax 507 452 4507 http www watlow com 0600 0028 0000 Rev B 5 00 December 1999 North American English Made in the U S A Supersedes te Printed on Recycled Paper WVPC XUMN Rev A00 General Description The VPAC Series Power Controls are a family of Solid State Relay SSR controls for electric heating applications The VPAC provides output power proportional to the input command signal from a temperature control The single phase VPAC 01 can be ordered in either ON OFF solid state contactor burst fired or phase angle firing mode The three phase two leg VPAC 32 is for solid state contactor or burst fired loop powered operation only Model Number 1821 VPAC Series V Phase 01 Single Phase 32 Three Phase Two Leg Burst fired BL or SS contactor CA CD only Voltage 12 120V ac 24 240V ac 27 277V ac 38 380V ac 41 415V ac 48 480V ac in 25A and up only Current 10 10Amps 25 25Amps 40 40Amps 50 50Amps 75 75Amps Control Mode BLO Burst fired variable time base loop powered 4 20mA input 08 5399 BT1 Zero cross variable time base transformer powered Single phase only 4 20mA input calibration BT2 Zero cross variable time base transformer powered Single phase onl
9. ac or 480V ac to 24V ac power transformer included model dependent for AT and BT options Outputs e 120V ac through 480V ac e 10 75A Operating Ambient e Temperature 0 to 50 C e RH 0 to 90 non condensing Specification subject to change without notice 1 Call Customer Service 507 454 5300 for a Return Material Authorization RMA number before returning any item for repair We need e Ship to address e Bill to address e Phone number e Ship via e Symptoms and or special instructions e Name amp phone of person returning the material 2 Prior approval and an RMA number from the Customer Service Department is needed when returning any unused product for credit Make sure the RMA number is on the outside of the carton and on all paperwork returned Ship Freight Prepaid 3 In cases of manufacturing defect we will enter a repair order replacement order or issue credit for material A 25 restocking charge is applied for all returned stock controls and accessories 4 Ifthe unit is unrepairable it will be returned to you with a letter of explanation Repair costs will not exceed 50 of the original cost e Contact name Your P O VPAC Dimensions and Mounting eee AN wanna AN VPAC mounting and spacing must conform to local state and national safety codes Failure to conform to codes could result in death or per sonal injury or damage to equipment Acumen D Mount units with h
10. eat a w _ gt db sink fins oriented vertically Failure to do so could result in unit o iz failure and damage to the process IL l y AB Z1 N on Le NOTE The 50Amp Single Phase width mounting dimension NL Z includes four mounting clips 56 0308 instead of the 1 2 round cutouts NOTE 3 Phase 2 Leg 10 40A use 2 heat sinks for overall dimensions NOTE Mounting dimensions show maximum possible height and depth with terminal mounted control card attached Unit height and depth varies with control card configuration Maximum Overall Dimensions Mounting Dimensions V01 10 40A Amps Height H Width W Depth D A B C Fan Cooled 10 5 60 4 50 1 50 3 00 0 50 0 15 4 20 No 25 5 50 4 75 3 60 2 00 0 50 0 15 4 45 No 40 6 30 4 75 3 60 4 50 0 50 0 15 4 45 No V32 10 40A Height H Width W Depth D A Fan Cooled 10 5 60 9 00 1 50 3 00 0 50 0 15 4 20 No 25 5 50 9 50 3 60 2 00 0 50 0 15 4 45 No 40 6 30 9 50 3 60 4 50 0 50 0 15 4 45 No V01 50 75A Height H Width W Depth D A Fan Cooled No Yes V32 50 75A Height H Width W Depth D A Fan Cooled 50A 10 50 5 00 5 50 7 00 1 00 0 15 4 70 Yes 75A 10 50 5 00 5 50 7 00 1 00 0 15 4 70 Yes Watlow VPAC User s Manual 3 Mount 120 240V Transformer AT BT Power The AT or BT transformer powers the AT or BT control card Mount the transformer within 12 in 30 5cm of the VPAC it conn
11. ects to 0 2 5mm Mtg Holes Panel Q M 2 4 iio 60mm 120 240V Xformer 16 0238 nee 2 0 e 51mm 0 4 a 1 4 Pe 10mm 35mm gt gt lt _ 1 3 f 33mm Pri 0 7 1 7 17mm 43mm ERE A Mount 277 to 480V Transformers AT BT Power The AT or BT transformer powers the AT or BT control card Mount the transformer within 12 in 30 5cm of the VPAC it connects to 0 2 5mm Mtg Holes ye 8 Screw a i Bik Trans Connector to Wht San former AT or BT Card 61mm phi om a 1 5 gt 38mm Panel 3 1 6mm 4 1 7 p 42mm Watlow VPAC User s Manual 4 Mount Semiconductor Fuses lt q 0 4 12mm for 15A 30A fusi cg 0 5 13mm for 50A fuses gt 4 0 2 6mm for 15A 30A fuse 0 3 8mm for 50A fuses ae ESE t7 KA 45mm A 0 8 21mm y 0 2 A 56mm Mount 15 30A Semiconductor Fuse lt 4 5 114mm gt AN 3 9 100mm lt 4 25 64mm gt 0 4 10mm t Guide Lug 32mm Hole 0 6 l 16mm i 0 2 6mm a 5 j Mounting Hole 38mm gt Mount 50 100A Semiconductor Fuse 5 5 to 5 6 140 to 143mm lt 5 0 to 5 1 127 to 130mm _ gt 4 4 6 to 4 7 117 to 120mm e 0 4
12. nual is copyrighted by Watlow Winona Inc December 1999 with all rights reserved 1820 oS a4 Pe Qmm r aa
13. y 0 to 5VDC input calibration Can be used for manual potentiometer input AT1 Phase angle transformer powered Single phase only 4 20mA input calibration AT2 Phase angle transformer powered Single phase only 0 to 5VDC input calibration Can be used for manual potentiometer input CAO Contactor AC Input CDO Contactor DC Input Transformer included for AT and BT Accessory 08 5362 Manual Control Kit 1K Potentiometer 08 5362 for use with AT and BT Cards only Semiconductor Fuses for VPAC Through 75 Amps Watlow Watlow Amp Voltage Bussmann Fuse Fuse Holder Rating Rating P N P N P N VPAC SCRs and SSRs 10 amp 12 600 FWC12A10F 17 8012 17 5110 25 amp 32 600 FWC32A10F 17 8032 17 5110 40 amp 50 700 FWP50A14F 17 8050 17 5114 50 amp 63 700 FWP63A22F 17 8063 17 5122 75 amp 100 500 FWP100A22F 17 8100 17 5122 The VPAC is warranted to be free of defects in material and workmanship for 36 months after delivery to the first purchaser for use providing that the units have not been misapplied Since Watlow has no control over their use and sometimes misuse we cannot guarantee against failure Watlow s obligations hereunder at Watlow s option are limited to replacement repair or refund of purchase price and parts which upon examination prove to be defective within the warranty period specified This warranty does not apply to damage resulting from transportation alteration misuse abuse or improper fusing Watlow
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