Assembly (R, S-Frames) Owner manual

ManualsBrandsRockwell Automation ManualsEquipment2361 Armature Heatsink

EPLACEMENT

NSTRUCTIONS

Armature Heatsink Assembly

Replacement

(for 1250 and 1650A, 1395 DC Drives)

Contents This document shows how to remove and replace a heatsink assembly

in a 1250 or 1650A, 1395 DC drive.

What This Kit Contains Using the table below, verify that you have received the appropriate

items in your kit:

Other Items Needed Before you begin, be sure you also have the following:

• Tools needed for:

• Removing, fastening, and torquing bolts (ratchet with

extension and a 9/16” socket, torque wrench for 25 lb-ft)

• Testing for voltage (multimeter)

• Documentation:

• Your drive system schematics

• Publication 1395-5.40, Bulletin 1395 Digital DC Drive–

User Manual

• Publication 2361-5.01, Bulletin 1395 Digital DC Drive in

Bulletin 2361 Motor Control Center for Drive Systems–

User Manual

For this part: You should receive this quantity:

heatsink assembly 1

Summary of content (8 pages)

PAGE 1
REPLACEMENT KIT INSTRUCTIONS Armature Heatsink Assembly Replacement (for 1250 and 1650A, 1395 DC Drives) Contents This document shows how to remove and replace a heatsink assembly in a 1250 or 1650A, 1395 DC drive.
PAGE 2
Armature Heatsink Assembly Replacement (for 1250 and 1650A, 1395 DC Drives) Safety Precautions The following general precautions apply when working on drives: ! ATTENTION: Only those familiar with the drive system, the products used in the system, and the associated machinery should plan or implement the installation, startup, and future maintenance of the system. Failure to comply can result in personal injury and/or equipment damage.
PAGE 3
Armature Heatsink Assembly Replacement (for 1250 and 1650A, 1395 DC Drives) 3 Preliminary Steps Before replacing the heatsink assembly, shut off the drive power, wait five minutes for the voltage to discharge, open the bridge bay door, and remove all Lexan™ guards shielding the heatsink assemblies.
PAGE 4
Armature Heatsink Assembly Replacement (for 1250 and 1650A, 1395 DC Drives) Removing The Assembly 2 (Upper Assemblies Only) 4 3 One bolt for Glastic mount Heatsink Assembly Negative (lower) regenerative example 5 Two bolts for busbar connection Publication 2361-5.
PAGE 5
Armature Heatsink Assembly Replacement (for 1250 and 1650A, 1395 DC Drives) Removing the Assembly 5 1. Using a voltmeter, test the voltage across the three phases, then across the heatsink assembly components. ! ATTENTION: If there is any voltage present, remove the source of the voltage and check for voltages again before proceeding to the next step. 2. Unplug the thermoswitch connector (upper assemblies only). Note: Unplug thermoswitch connectors for any other assemblies if they are in the way. 3.
PAGE 6
Armature Heatsink Assembly Replacement (for 1250 and 1650A, 1395 DC Drives) Replacing the Heatsink Assembly 1. Place the new assembly into the drive (with the snubbers to the right), and rest the lower bracket (or busbar) on the mounting peg. 2. Mount the assembly, securing the three mounting bolts to the top and bottom of the assembly. Torque the Glastic™ surface to 25 lb-ft and the busbar mounting surface to 25 lb-ft. 3.
PAGE 7
Armature Heatsink Assembly Replacement (for 1250 and 1650A, 1395 DC Drives) 7 Armature-Pulse Transformer Board Wiring A14R A16R A11F A14F A12R A13F A16F A11R A15F A12F A13R A15R Not used in nonregenerative units. Concluding Steps After installing the assembly, replace all Lexan shielding and secure the bridge bay door. Dispose of old parts according to your company procedures and local ordinances. Publication 2361-5.