User guide

Troubleshooting the FlexPak 3000 Drive
13-21
.
Table 13.3 – Inverting Fault Avoidance Settings
Parameter Setting
Is Drive
Regenerating
or Attempting
to Regenerate? Drive Action
DISABLED
n/a None.
FAULT IMMEDIATELY
Ye s
•
Immediately stops (coast/DB).
•
Generates an
INVERTING FAULT AVOIDED
fault (F00015).
No (drive is
motoring)
•
Generates an
INVERTING FAULT AVOIDED
alarm (A00005).
•
Continues normal operation on the motoring bridge until a
request to regenerate is detected.
A request to regenerate occurs when the current minor loop
reference and feedback become opposite polarity. When a request
to regenerate is detected, the drive immediately stops (coast/DB)
and generates an
INVERTING FAULT AVOIDED
fault (F00015).
DELAY BEFORE FAULT
Ye s
•
Immediately forces the current minor loop reference to zero.
•
Logs an
INVERTING FAULT AVOIDED
alarm (A00005).
•
Continues operate normally for up to two seconds. The drive can
generate a motoring current as needed but will coast while a
demand for regenerative current exists.
•
If the demand for regenerative current persists for approximately
two seconds, the drive:
•
Stops (coast/DB).
•
Generates an
INVERTING FAULT AVOIDED
fault (F00015).
•
If the conditions that caused the alarm return to normal before
two seconds, the drive returns to normal operation (the
regenerative bridge is re-enabled) without stopping.
No (drive is
motoring)
•
Logs an
INVERTING FAULT AVOIDED
alarm.
•
Continues normal operation on the motoring bridge until a
request to regenerate is detected.
•
When a request to regenerate is detected, the drive continues
operate normally for up to two seconds. The drive can generate a
motoring current as needed but will coast while a demand for
regenerative current exists.
•
If the demand for regenerative current persists for approximately
two seconds, the drive:
•
Stops (coast/DB).
•
Generates an
INVERTING FAULT AVOIDED
fault (F00015).
•
If the conditions that caused the alarm return to normal before
two seconds, the drive returns to normal operation (the
regenerative bridge is re-enabled) without stopping.