Rockwell Automation 7000L PowerFlex 7000 Medium Voltage AC Drive C Frame - Marine - Manual (Page 330)

4-154 Component Definition and Maintenance
7000L-UM302B-EN-P – June 2013 7000 ―C‖ Frame - Marine
Control Power Checks (No Medium Voltage)
 Apply 3 Phase Control power to the PF7000 drive, and test
power to all of the vacuum contactors (input, output, and bypass)
in the system, verifying all contactors can close and seal in.
 Refer to Publication 1502-UM050_-EN-P for a detailed
description of all contactor maintenance
 Verify all single-phase cooling fans for operation.
 This includes the cooling fans in the AC/DC Power supplies
and the DC/DC converter.
 Verify the proper voltage levels at the CPT (if installed), AC/DC
Power Supplies, DC/DC converter, isolated gate power supply
boards.
 Refer to Chapter 4 – Commissioning for appropriate
procedures/voltage levels for the above checks.
 Verify the proper gate pulse patterns using Gate Test Operating
Mode.
 If there have been any changes to the system during the outage,
place the drive in System Test Operating Mode and verify all
functional changes.
Final Power Checks before Restarting
 Ensure all cabinets are cleared of tools, and all component
connections are back in place and in the running state.
 Put all equipment in the normal operating mode, and apply
medium voltage.
 If there were any input or output cables removed, verify the input
phasing, and bump the motor for rotation.
 If there were any changes to the motor, input transformer, or
associated cabling, you will have to retune the drive to the new
configuration using autotuning.
 Save all parameter changes (if any) to NVRAM.
 Run the application up to full speed/full load, or to customer
satisfaction.
 Capture the drive variables while running, in the highest access
level if possible.
Annual Maintenance
(cont.)