Rockwell Automation FlexPak 3000 Power Module Version 4.2 - Manual (Page 77)

TROUBLESHOOTING/DIAGNOSTICS
49’1340 e FlexPak 3000 7-5
7.7.3 Diagnostics Menu
This menu provides information regarding drive status for diagnostics menu selections Why is
the drive not ready? and Why did the drive stop?. Access the Diagnostics Menu by pressing the
FAULT key until DIAGS appears on the OIM directly above the FAULT key.
The following will be displayed.
Diagnostics Menu
➤
Why is the drive not ready?
Why did the drive stop?
!!
!!
Fault
Alarm
Interlock OK
Drive Ready
Running
Current Limit
Torque Limit
DIAGS KEYPAD MANUAL FORWARD
WHY IS THE DRIVE NOT READY?
If the LCD indicator for Drive Ready is extinguished, the drive is not ready for one or more of
the following reasons:
• Drive faults are present.
• All interlocks, customer supplied and internal, are not closed.
Selecting the Why is the drive not ready? menu item will list on the display the reason(s) why
the drive is not ready.
WHY DID THE DRIVE STOP?
Selecting Why did the drive stop? will list on the display the reason(s) why the drive stopped.
This includes operator induced commands such as pushing the Coast/Stop pushbutton or the
STOP key on the OIM.
7.7.4 Diagnostics Configure
If line disturbances occur, resulting in open SCR nuisance trips, a Diagnostics Configure menu
can be accessed to help reduce the sensitivity to these disturbances.
This menu is accessible directly from the Main Menu.
FlexPak 3000 Main Menu
Diagnostics Configure
Use the up/down arrow keys to position the cursor next to Diagnostics Configure.
Press ENTER to access.
Diagnostics Configure
➤
OPEN SCR SENSITIVITY 0%
OPEN SCR TRIP THRESH 800
Armature Phase Fire Test
!!
!!
Fault
Alarm
Interlock OK
Drive Ready
Running
Current Limit
Torque Limit
PROGRAM KEYPAD MANUAL FORWARD
OPEN SCR SENSITIVITY - This parameter adjusts for load sharing differences due to
unbalanced A-C lines. Increase its value to open the SCR diagnostic tolerance of load sharing
differences.
OPEN SCR TRIP THRESH - This is the trip point for the SCR loss function. The default value
should not be changed unless nuisance trips occur due to extremely unusual load conditions or
severe instability in the CML. Raising this value will increase the diagnostic's tolerance of such
disturbances. OPEN SCR TRIP THRESH should only be increased if raising OPEN SCR
SENSITIVITY does not eliminate nuisance trips.