Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) - Manual (Page 199)

Commissioning 4-45
7000 “A” Frame 7000A-RM001A-EN-P – January 2011
Gating Tests Once the drive converters have been tested without Medium Voltage
and all the power supply output values have been verified, it is
necessary to test the SCRs and SGCTs under low voltage control
power.
The following procedures will describe how to perform the next
level of device testing:
• Gating Test Mode
• SCR Firing Test
• SGCT Firing Test
If the results of the tests are not as described in the section below,
refer to Chapter 5 – Component Definition and Maintenance, for
detailed information on how to troubleshoot problems in the
converter section of the drive.
Gating Test Mode
The following procedure explains how to enter gating test mode.
This feature will simulate drive operation by applying gate signals to
the SCRs and SGCTs while isolated from medium voltage. Prior to
starting the drive for the first time, a gating test should be performed
to ensure that each device is functional.
Some drive status I/O will be active while performing tests in Gating
Test Mode. If the drive I/O is monitored remotely, process control
should be notified in advance to avoid confusion.
A T T E N T I O N A T T E N T I O N Ensure that the drive is isolated from medium
voltage prior to starting this test.
The PV550 display screens are given as an example. The actual
screen data may differ.
From the main screen, press the
ACCESS [F10[ key and use the down
arrow until you highlight
ADVANCED. Press Enter and then
EXIT [F10].