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P22194-1

DC DRIVE

Instruction Manual

Summary of Contents for P22194-1

Page 1: ...P22194 1 DC DRIVE Instruction Manual ...

Page 2: ...tment Descriptions 9 5 1 Programming Jumpers 9 5 2 Adjustment Potentiometers 9 5 3 Circuit Test points 12 6 Start Up Procedure 15 6 1 Adjustment and Programming Presets 15 6 2 Initial Pretest and Power Up 15 6 3 Motor Start Up 16 6 4 Calibration and Fine Tuning 16 7 Fault Conditions 19 8 Spare Parts 20 8 1 Printed Circuit Board Assemblies 20 8 2 Fuses 20 8 3 Power Components 20 9 Drawings 21 D1198...

Page 3: ...t 1400 volts PIV and 1000 volts microsecond dv dt Semiconductor armature fuse for power circuit protection Latching Fault logic provides safety shutdown with form C contact output and LED indicators for Low Line Phase Loss Field Loss and Over Current Trip conditions Interlock logic with form C contact output and LED indicators for Current Limit and Motor Output 5 jumper selectable armature current...

Page 4: ... 120 VAC Horsepower Range 5 to 20 HP 240 VDC Speed Regulation Armature Feedback 1 of base speed Tachometer Feedback 0 5 of base speed Torque Regulation 2 of range selected Speed Range 20 1 motor dependent Temperature Range Chassis 0 to 50 degrees C Control Board Adjustments P1 Integral Null P2 Slope P3 IR Comp P4 I Current Integral P5 I Current Proportional P6 Max Jog Speed P7 Jog Accel Decel P8 M...

Page 5: ...ctions to ground other than the designated grounding screw located in the upper left corner of the drive Use fully insulated and shielded cable for all signal wiring This includes all potentiometer pot and tachometer wires The shield should be connected at one end only to circuit common at terminals 15 18 23 or 26 The other end of the shield should be clipped and insulated to prevent the possibili...

Page 6: ...NOTE Carotron recommends the use of a three phase DIT drive isolation transformer While the P22194 1 control does not require this transformer for proper operation it can be helpful in reducing the effects of line transients on this control and generated by this control on other products and can provide fault current limiting in the event of severe motor or control failure 4 2 Motor Connections Re...

Page 7: ...inding S1 and S2 is placed in series with the armature leads The series field winding polarity must be kept at the same polarity as the shunt field winding i e F1 and S1 the same F2 or F4 and S2 the same Motor Thermostat Most motors include J or P leads that connect to an internal normally closed thermostat Connecting the thermostat in series with the O Stop circuit at Terminal 12 as shown in Draw...

Page 8: ...TB1 Terminals 12 O Stop The Override Stop circuit must be closed connected to common for the control to operate If opened during operation O Stop will immediately terminate drive operation and the motor will coast to a stop When O Stop is reclosed the Reset circuit Terminal 13 must be closed to resume drive operation TB1 Terminal 13 Reset A momentary closure of the Reset circuit resets the O Stop ...

Page 9: ...n Speed potentiometer is connected to terminals 19 CW 20 wiper and 21 CCW The adjustment range of this signal is determined by internal potentiometers P8 Max Run Speed and P10 Min Run Speed reference section 5 2 TB1 Terminals 22 23 Tachometer For DC tachometer feedback connect the 21 VDC 1000 RPM tachometer to terminals 22 and 23 These terminals are not polarity sensitive The shield should be conn...

Page 10: ...mentarily For applications where field current sensing is not appropriate the jumper must be placed in the Bypass position J3 HP Select reference section 5 2 The operating range of armature current is determined by the position of this jumper By selecting the position corresponding to the motor used 5 7 5 10 15 or 20 HP the limits of the Max Torque Limit and Over Current Trip circuits are properly...

Page 11: ...per is connected to TB1 16 and 17 the Max Jog pot sets the drive jog speed The range of adjustment is from 0 to 100 of base speed clockwise rotation increases the speed P7 JOG AC DC The Jog AC DC pot controls the acceleration and deceleration times in the Jog mode It is adjustable from to 30 seconds for a 0 to 100 transition clockwise rotation increases the time Note On the P22194 1 model decelera...

Page 12: ...he acceleration is complete P2 Slope The Slope pot works in conjunction with the Max Torque pot to determine the speed reduction associated with operating torque above the Max Torque level When the Slope pot is set full CCW the motor speed will decrease from full speed to stall for a torque increase of 3 beyond the Max Torque level P9 Over Current Trip The Over Current Trip pot determines the maxi...

Page 13: ...oportional pot allows a 4 to 1 change in the velocity loop proportional gain Clockwise rotation increases the gain The Velocity Integral and Velocity Proportional signals are summed to produce the Torque Demand signal P4 Current Integral The Current Integral pot allows a 10 to 1 change in the current loop integral time constant Clockwise rotation increases the time or decreases the response rate P...

Page 14: ... 24 VDC As unregulated power supplies these voltages can normally deviate 4 VDC with line voltage and load variations TP9 AFB SCALED ARMATURE VOLTAGE The armature voltage signal is scaled to a 5 volt level and used for velocity feedback in the AFB mode and for zero speed sensing TP10 IFB SCALED CURRENT FEEDBACK The armature current signal is scaled according to the control rating and position of J...

Page 15: ... VI VELOCITY INTEGRAL This is the velocity loop integral signal before it is combined with the velocity proportional signal to give the Torque reference signal TP18 TFB SCALED TACHOMETER VOLTAGE The tachometer voltage is scaled to a 5 volt level at motor base speed and used for velocity feedback in the TFB mode TP19 START RUN ACCEL DECEL The Start Accel Decel circuit output shows the RUN reference...

Page 16: ...on Connections should be visually inspected and checked for tightness An ohmmeter can be used to check for ground faults Even though the P22194 1 control circuit is isolated and can be grounded it is not necessary and is generally undesirable because other circuits connected to it may not be isolated and because of the possibility of ground loops noise conditions caused by shields being connected ...

Page 17: ...ially from a low operating speed Refer to Section 4 4 for descriptions of these stopping methods Step 5 Increase the speed pot setting to maximum Use the P8 MAX SPEED pot to adjust for rated armature voltage 240 VDC or desired motor maximum speed After the desired maximum speed has been set decrease the speed pot setting to minimum and set the desired minimum speed with P10 MIN SPEED Step 6 Test t...

Page 18: ...machine loading conditions If mechanically induced the instability repetition rate or frequency can usually be related to a motor or machine rotation rate or loading cycle In this situation the instability frequency will change in coincidence with any motor speed change Instability in the control output due to incorrect adjustment would usually be present over a range of speed and would not usuall...

Page 19: ...me constant Clockwise rotation increases the time or decreases the response rate I PROPORTIONAL The I PROPORTIONAL pot controls a 2 to 1 change in the current loop proportional gain Clockwise rotation increases the gain and response VELOCITY INTEGRAL The VELOCITY INTEGRAL pot controls a 20 to 1 change in the velocity loop integral time constant Clockwise rotation increases the time or decreases th...

Page 20: ... is pressed or the power is turned off momentarily Note The external Reset circuit TB1 terminal 13 is used only for the O Stop reset function The FAULT protection circuits operate as follows Low Line Phase Loss A low line condition below 195 VAC or a momentary loss approximately 2 cycles of any of the three phase line inputs will activate the Low Line Phase Loss fault Field Loss Discontinuity of t...

Page 21: ...ated dual SCR power modules rated at 56 Amp 1400 volts repetitive peak off state and reverse voltage and have 1000 V µS dv dt rating CAROTRON PMD1026 00 AEG EUPEC TT56N14KOF SEMIKRON SKKT56 14E NOTE IR International Rectifier and CRYDOM have similar power module ratings but are not pin for pin compatible with the above listed parts The gate and cathode signal leads are reversed on the second SCR d...

Page 22: ...Drawings 9 21 ...

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Page 27: ...maintained perform in compliance with such system s written specifications for a period of one 1 year from the date of shipment of such system As the Purchaser s sole and exclusive remedy under said warrant in regard to such systems including but not limited to remedy for consequential damages the Company will at its option cause without charges any such system to so perform which system is found ...

Page 28: ...3204 Rocky River Road Heath Springs SC 29058 Phone 803 286 8614 Fax 803 286 6063 Email saleserv carotron com Web www carotron com MAN2001 0D Issued 09 15 2004 ...

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