Rockwell Automation 7000L PowerFlex 7000 Medium Voltage AC Drive C Frame - Marine - Manual (Page 11)

Table of Contents v
7000 “C” Frame - Marine 7000L-UM302B-EN-P – June 2013
PowerCage™ ......................................................................... 4-24
SGCT and Snubber Circuit ................................................... 4-27
Uniform Clamping Pressure .................................................. 4-27
Checking Clamping Pressure ................................................ 4-28
Clamping Pressure Adjustment ...................................... 4-28
Temperature Sensing ............................................................. 4-29
Symmetrical Gate Commutated Thyristor Replacement ....... 4-30
Silicon Controlled Rectifier and SCR Self-Powered
Gate Driver Board Replacement ..................................... 4-33
Detachment of Coolant System from PowerCage Modules ....... 4-36
Reconnecting the Coolant System to PowerCage Module ... 4-38
Chill Block Removal and Replacement ................................. 4-41
Instructions for Inserting Chill Block Assembly ............. 4-42
PowerCage Removal and Replacement ................................. 4-43
Snubber Resistors .................................................................. 4-44
Testing Snubber Resistors ............................................... 4-45
Sharing Resistors ................................................................... 4-45
Testing Sharing Resistors ................................................ 4-46
SGCT PowerCages ................................................... 4-46
SCR PowerCages ...................................................... 4-47
Snubber and Sharing Resistor Replacement .......................... 4-47
Self-Powered Gate Driver Board – SPGDB .......................... 4-49
Description ...................................................................... 4-49
Board Calibration ............................................................ 4-49
Test Points Description ................................................... 4-50
Terminal/Connections Description ................................. 4-51
Testing Procedure for SCR Self-Powered Gate Driver Board ... 4-52
Equipment Needed .......................................................... 4-52
Procedure ......................................................................... 4-52
Fiber Optic Cabling ............................................................... 4-56
DC Link and Control Power Section ..................................... 4-57
DC Link Reactor ............................................................. 4-58
Control Power Components ................................................... 4-59
Ride-Through .................................................................. 4-59
AC/DC Power Supply ............................................................ 4-62
Description ...................................................................... 4-62
Location ........................................................................... 4-63
Terminal/Connections Description ................................. 4-64
Replacement Procedure ................................................... 4-65
UPS Option ............................................................................ 4-66
UPS Replacement Procedure .......................................... 4-67
Cooling System ...................................................................... 4-68
Cooling Circuit ................................................................ 4-69
Chill Blocks ..................................................................... 4-69
Coolant Pumps ................................................................ 4-69
Pump Maintenance and Replacement .................................... 4-70
Pump Seal Replacement .................................................. 4-70
Pump Replacement .......................................................... 4-71
Piping, Tubing and Connectors ....................................... 4-71
Non-Return Valves .......................................................... 4-72
Chapter 4 Component Definition
and Maintenance
(cont.)