PowerFlex 700L Liquid-to-Liquid Heat Exchanger Control Board Replacement

Transcription

1 Installation Instructions PowerFlex 700L Liquid-to-Liquid Heat Exchanger Replacement ATTENTION: To avoid an electric shock hazard and prevent thermal damage, ensure that all power to the drive power module and heat exchanger has been removed before performing any steps of these instructions. Since control wires from the drive are connected to the heat exchanger control board, it is necessary to remove power from the drive as well as the heat exchanger. ATTENTION: To avoid an electric shock hazard, verify that the voltage on the drive power module bus capacitors has completely discharged before performing any work on the heat exchanger. After removing power to the drive power module, wait 5 minutes for the bus capacitors to discharge. Remove the front cover of the drive power module (complete cover for Frame 2 drives or lower front cover for Frame 3A and 3B drives). Measure the DC bus voltage at the DC+ TESTPOINT and DC- TESTPOINT sockets on the front of the drive power module. The voltage must be zero. ATTENTION: This heat exchanger control board contains ESD (Electrostatic Discharge) sensitive parts and assemblies. Static control precautions are required when installing, testing, servicing or repairing this assembly. Component damage may result if ESD control procedures are not followed. If you are not familiar with static control procedures, refer to Allen-Bradley publication , Guarding Against Electrostatic Damage or any other applicable ESD protection handbook. What This Kit Includes One replacement control board Tools That You Need Standard flat blade screwdriver #2 Phillips screwdriver

2 2 PowerFlex 700L Liquid-to-Liquid Heat Exchanger Replacement Step 1: Removing Power from the Drive Power Module ATTENTION: To avoid an electric shock hazard, verify that the voltage on the drive power module bus capacitors has completely discharged before performing any work on the heat exchanger. After removing power to the drive power module, wait 5 minutes for the bus capacitors to discharge. Remove the front cover of the drive power module (complete cover for Frame 2 drives or lower front cover for Frame 3A and 3B drives). Measure the DC bus voltage at the DC+ TESTPOINT and DC- TESTPOINT sockets on the front of the drive power module. The voltage must be zero. Remove power before making or breaking cable connections. When you remove or insert a cable connector with power applied, an electrical arc may occur, which can cause personal injury or property damage by: sending an erroneous signal to your system s field devices, causing unintended machine motion causing an explosion in a hazardous environment Electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts may create electrical resistance. A. Turn off and lock out input power. Wait 5 minutes. L1 L2 L3 I O B. Verify that there is no voltage at the drive power module s input power terminals. C. Remove the front cover of the drive power module (complete cover for Frame 2 drives or lower front cover for Frame 3A and 3B drives). D. Measure the DC bus voltage at the DC+ TESTPOINT and DC- TESTPOINT sockets on the front of the drive power module chassis. The voltage must be zero.

3 PowerFlex 700L Liquid-to-Liquid Heat Exchanger Replacement 3 Step 2: Removing Power from the Heat Exchanger ATTENTION: Remove power before making or breaking cable connections. When you remove or insert a cable connector with power applied, an electrical arc may occur, which can cause personal injury or property damage by: sending an erroneous signal to your system s field devices, causing unintended machine motion causing an explosion in a hazardous environment Electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts may create electrical resistance. A. Turn off and lock out input power. L1 L2 L3 I O B. Verify that there is no voltage at the heat exchanger s input power terminals. Step 3: Opening the Electrical Box Door Using the flat blade screwdriver, turn the locking mechanism on the electrical box door counterclockwise one-quarter turn and open the door. Electrical Box Locking Mechanism

4 4 PowerFlex 700L Liquid-to-Liquid Heat Exchanger Replacement Step 4: Removing the A. Pull out the gray plastic grommet that secures each of the two (2) light pipes. Grommets Light Pipe Bracket B. Pull out each light pipe from its connector on the board. Electrical Box (cover removed) J2 J1 J5 J6 J7 J8 Step 5: Removing the Old A. Use the table below to note the settings of dipswitches S1 and S2. S1 S2 SW8 SW7 SW6 SW5 SW4 SW3 SW2 SW1 B. Note the position of the J2 voltage selection jumper. 1 J2 230 VAC Operation Plug Position FU1 115 VAC Operation Plug Position

5 PowerFlex 700L Liquid-to-Liquid Heat Exchanger Replacement 5 C. On the control board, pull out the removable terminal block connectors from J1, J5, J6, J7, and J8. D. Hold the control board in place while unscrewing the (4) mounting screws from the corners of the control board. Save the screws for installation of the new control board. ATTENTION: HOT surfaces can cause severe burns. Do not touch the surface of the power transformer on the control board while removing the control board. After disconnecting power to the heat exchanger, allow time for cooling. E. Remove the old control board. F. Remove each control board connector for each light pipe by pushing in its tabs on the back of the board and gently pulling the connector out from the front. Mounting Plate Connectors Light Pipe Bracket Step 6: Installing the New Install the new control board in reverse order of Step 5. Be sure to set the J2 voltage jumper and S1 and S2 dip switch settings as noted during removal of the old control board. Step 7: Pipes Installing the Light Install the light pipes in reverse order of Step 4.

6 U.S. Allen-Bradley Drives Technical Support - Tel: (1) , Fax: (1) , support@drives.ra.rockwell.com, Online: Power, Control and Information Solutions Headquarters Americas: Rockwell Automation, 1201 South Second Street, Milwaukee, WI USA, Tel: (1) , Fax: (1) Europe/Middle East/Africa: Rockwell Automation, Vorstlaan/Boulevard du Souverain 36, 1170 Brussels, Belgium, Tel: (32) , Fax: (32) Asia Pacific: Rockwell Automation, Level 14, Core F, Cyberport 3, 100 Cyberport Road, Hong Kong, Tel: (852) , Fax: (852) Publication 20L-IN006A-EN-P April, 2007 P/N P01 Copyright 2007 Rockwell Automation, Inc. All rights reserved. Printed in USA.