ABB RCNA-01 User Manual Page 249

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Parameter listing and descriptions 245
ACH550-01 User's Manual
Group 31: AUTOMATIC RESET
This group defines conditions for automatic resets. An automatic
reset occurs after a particular fault is detected. The drive holds
for a set delay time and then restarts automatically. You can limit
the number of resets in a specified time period, and you can set
up automatic resets for a variety of faults.
Code Description Range
3101 NUMBER OF TRIALS 0…5
Sets the number of allowed automatic resets within a trial period defined
by 3102
TRIAL TIME.
If the number of automatic resets exceeds this limit (within the trial
time), the drive prevents additional automatic resets and remains
stopped.
Starting then requires a successful reset performed from the control
panel (operator keypad) or from a source selected by 1604
FAULT
RESET SEL.
Example: Three faults have occurred in the trial time. The last is reset
only if the value for 3101
NUMBER OF TRIALS is 3 or more.
3102 TRIAL TIME 1.0…600.0 s
Sets the time period used for counting and limiting the number of resets.
•See 3101
NUMBER OF TRIALS.
3103 DELAY TIME 0.0…120.0 s
Sets the delay time between a fault detection and attempted drive
restart.
•If
DELAY TIME = zero, the drive resets immediately.
3104 AR OVERCURRENT 0=DISABLE, 1=ENABLE
Sets the automatic reset for the overcurrent function on or off.
0 =
DISABLE – Disables automatic reset.
1 =
ENABLE – Enables automatic reset.
• Automatically resets the fault (
OVERCURRENT) after the delay set by
3103
DELAY TIME, and the drive resumes normal operation.
3105 AR OVERVOLTAGE 0=DISABLE, 1=ENABLE
Sets the automatic reset for the overvoltage function on or off.
0 =
DISABLE – Disables automatic reset.
1 =
ENABLE – Enables automatic reset.
• Automatically resets the fault (
DC OVERVOLT) after the delay set by
3103
DELAY TIME, and the drive resumes normal operation.
XXX
Time
Trial time
x = Automatic reset
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