Cole Parmer 75211-30 Service Manual
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Cole Parmer 75211-30 Service Manual

Console/nema modular, 115/230 vac, 60 to 3600 r/min, controller/motor only
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75211-40 NEMA Modular, 115 Vac, 60 to 3600 r/min
75211-45 NEMA Modular, 230 Vac, 60 to 3600 r/min
Information contained in this manual is proprietary to the BARNANT COMPANY,
division of COLE-PARMER INSTRUMENT COMPANY, INC. No reproduction for other
than the intended use of maintaining the product described herein is permitted without
the permission of BARNANT.
1 of 24
Page
Barnant Company
847-381-7050 800-637-3739 847-381-7053 (Fax)
barnant@barnant.com
e-mail:
Cole-Parmer Instrument Company
SERVICE MANUAL
MODELS:
75211-30 Console, 115 Vac, 60 to 3600 r/min
75211-35 Console, 230 Vac, 60 to 3600 r/min
75211-41 Controller only
75211-42 Motor only
75211-46 Controller only
75211-47 Motor only
PROPRIEARY
TABLE OF CONTENTS
28W092 Commercial Avenue Barrington, IL U.S.A. 60010-2392
Web Site: http//www.barnant.com
Barnant Company
Manufactured by:

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Summary of Contents for Cole Parmer 75211-30

  • Page 1 75211-47 Motor only PROPRIEARY Information contained in this manual is proprietary to the BARNANT COMPANY, division of COLE-PARMER INSTRUMENT COMPANY, INC. No reproduction for other than the intended use of maintaining the product described herein is permitted without the permission of BARNANT.

  • Page 2: Table Of Contents

    REPLACEMENT PARTS LISTING................21 CALIBRATION ......................22 FUNCTIONAL TESTS....................23 ASSOCIATED DOCUMENTS ..................25 INTRODUCTION Service for this product is performed at three levels: the customer, distributor/COLE-PARMER and factory/depot repair. This manual describes dis- tributor/COLE-PARMER service procedures. 2 of 24 Page Barnant Company 28W092 Commercial Avenue Barrington, IL U.S.A.

  • Page 3: Safety Considerations

    To use this manual, begin with the troubleshooting section to isolate the fault to a replaceable part. The functional description and check-out procedure sections are also helpful in determining the faulty part. Distributor/COLE-PARMER repair is limited to replacement of modules as detailed in the replacement parts list section. The repair procedures section details disassembly and assembly procedures.

  • Page 4: Functional Description

    Cole-Parmer Instrument Company Barnant Company Manufactured by: WARNING: High voltage is present inside the unit, when servicing any component of this unit be absolutely certain that all power to circuitry is removed. If any functional checks are to be performed while power is applied and chassis is disassembled, care must be exercised.

  • Page 5: Theory Of Operation

    Cole-Parmer Instrument Company Barnant Company Manufactured by: As shown on the Block Diagram, the motor (pump) speed (w) is a function of the applied torque (T) acting on the rotor inertia (1/sJ). The torque in turn is proportional (Kt) to the armature current (Iarm), which is produced by the difference between the applied armature voltage (Varm) and the motor back EMF across the armature impedance (1/(Ra+s*La)).
  • Page 6 Cole-Parmer Instrument Company Barnant Company Manufactured by: Phase-Controlled Rectifier Speed Control The variable speed drive employs a phase-controlled rectifier bridge to vary the power applied to the DC motor. The bridge will only conduct current when the power line voltage exceeds the voltage across the motor terminals. The power to the motor can therefore be controlled by varying the point at which the bridge starts to conduct, relative to the phase of the line voltage.
  • Page 7 Cole-Parmer Instrument Company Barnant Company Manufactured by: Low Speed & Low Torque Low Speed & Med. Torque Low Speed & High Torque 7 of 24 Page Barnant Company 28W092 Commercial Avenue Barrington, IL U.S.A. 60010-2392 847-381-7050 800-637-3739 847-381-7053 (Fax) barnant@barnant.com e-mail: Web Site: http//www.barnant.com...
  • Page 8 Cole-Parmer Instrument Company Barnant Company Manufactured by: Med. Speed & Low Torque Med. Speed & Med. Torque Med. Speed & High Torque 8 of 24 Page Barnant Company 28W092 Commercial Avenue Barrington, IL U.S.A. 60010-2392 847-381-7050 800-637-3739 847-381-7053 (Fax) barnant@barnant.com...
  • Page 9 Cole-Parmer Instrument Company Barnant Company Manufactured by: High Speed & Low Torque High Speed & Med. Torque High Speed & High Torque Speed Feedback & Regulator Speed feedback is provided by a slotted encoder wheel and optical sensor. The IR output of the sensor diode is interrupted by slots in an encoder wheel attached to the motor shaft.
  • Page 10 Cole-Parmer Instrument Company Barnant Company Manufactured by: for noise filtering. Additional filtering is provided by C65 and C36. Transistor Q4 provides a buffered tachometer signal to the user. The encoder pulses from the comparator output are counted by the microprocessor to determine the motor speed. Schmitt trigger U2E speeds up the slew rate of the comparator U12C output.
  • Page 11 Cole-Parmer Instrument Company Barnant Company Manufactured by: switch closures are read into an 8-bit parallel port on the WSI PSD312 chip. RC network R47 through R62 and C17 through C24 provide EMI filtering. A/D Converter The A/D converter, U5, is a 11 channel, 10-bit successive approximation converter with a serial interface to the CPU.
  • Page 12 Cole-Parmer Instrument Company Barnant Company Manufactured by: Power Supply The primary power supply for the system is a 115 VAC or 230 VAC +/- 15%, 50 or 60 Hz, wall outlet. The rear panel power input module for the detachable power cord contains the fuse.
  • Page 13 Cole-Parmer Instrument Company Barnant Company Manufactured by: Waveform B is the voltage at point A in the schematic. It is at +V for the time Q1 is closed (T ) and at ground for the time Q1 is open (T- T ).

  • Page 14: Troubleshooting

    Cole-Parmer Instrument Company Barnant Company Manufactured by: TROUBLESHOOTING Repairs on this unit are confined to either the unit’s Main PCB assembly and/or drive motor assembly. 14 of 24 Page Barnant Company 28W092 Commercial Avenue Barrington, IL U.S.A. 60010-2392 847-381-7050 800-637-3739 847-381-7053 (Fax) barnant@barnant.com...
  • Page 15 Cole-Parmer Instrument Company Barnant Company Manufactured by: Where possible, swap known good parts to localize and isolate the problem. The following is a list of possible problems and remedies: VERIFY AC POWER IS OPERATIVE. MOTOR WILL NOT RUN, DISPLAY DOES NOT LIGHT: 1.
  • Page 16 Cole-Parmer Instrument Company Barnant Company Manufactured by: NO REMOTE OPERATION: 1. defective main PCB - replace main PCB assembly 2. external cable not connected - check/replace properly DISPLAYED ERROR CODES ERR = Bad calibration run ERR1 = No encoder pulses, Motor undershoot...

  • Page 17: Repair Procedures

    Cole-Parmer Instrument Company Barnant Company Manufactured by: ERROR #6 THROUGH #9 DISPLAYED: 1. turn unit off then on and/or press any key to reset, if any error numbers reappear - replace main PCB assy. NO DISPLAY OR GARBLED DISPLAY: 1. display connector not seated - reseat ribbon cable (J3) 2.
  • Page 18 Cole-Parmer Instrument Company Barnant Company Manufactured by: A) Slide on cover assembly. B) Install the three (console drives) pan head screws on each side of the unit's cover. On NEMA drives, tighten the four captive screws in the cover. TO REPLACE MOTOR ASSEMBLY (Console Drives Only): A) Remove BLACK motor lead from J5.
  • Page 19 Cole-Parmer Instrument Company Barnant Company Manufactured by: C) Making sure that the new firmware chip orientation is the same as that of the old, place the replacement firmware chip in the socket. Keeping the chip level, gently squeeze the chip into the socket until it is fully seated.

  • Page 20: Replacement Parts Listing

    Cole-Parmer Instrument Company Barnant Company Manufactured by: 10) BLACK from AUX OUT 2 to J7 11) WHITE from AUX OUT 2 to J8 12) RED from AUX IN 1 to J1 13) GREEN from AUX IN 1 to J10 14) BROWN from AUX OUT 1 to J14...
  • Page 21 Cole-Parmer Instrument Company Barnant Company Manufactured by: 75211-30 E-2231-0002 5750 5679 D-3078-0001 75211-35 E-2231-0002 5750 5679 D-3078-0002 75211-40 E-2231-0002 5753 5695 75211-42 75211-45 E-2231-0002 5753 5695 75211-47 The following list is commonly used parts applicable to the above model LISTINGS:...

  • Page 22: Calibration

    Cole-Parmer Instrument Company Barnant Company Manufactured by: CALIBRATION Due to the design of this product, there are no calibrations and/or adjustments to be performed other than set-ups performed by the customer. Calibration of the Analog I/O requires a special calibration fixture at the factory.
  • Page 23 Cole-Parmer Instrument Company Barnant Company Manufactured by: displayed value should change. 2.05 Press the CAL key. Note that the annunciator LED next to the key is flashing. Press the Gear Set key to exit out of CAL. 2.06 Verifying the LED for each tubing illuminates, press the tubing SIZE switch to get the RPM display.

  • Page 24: Associated Documents

    Cole-Parmer Instrument Company Barnant Company Manufactured by: ASSOCIATED DOCUMENTS Current copies of the following documents are required for servicing the drive: Main PCB Schematic: E-2229 Main PCB Assy Dwg: E-2231 Console Drive Display PCB Schematic: D-2972 Modular Drive Display PCB Schematic: D-3035 Operator’s Manual:...

This manual is also suitable for:

75211-3575211-4075211-4175211-4275211-4575211-46 ... Show all

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