ABB ACS880 Firmware Manual page 369

No. Name / Range /
Selection
b15 External fault 5
0000h...FFFFh
31.13 User selectable fault
0000...FFFFh
31.14 Number of trials
0...5
31.15 Total trials time
1.0 ... 600.0 s
31.16 Delay time
0.0 ... 120.0 s
31.19 Motor phase loss
No action
Fault
31.20 Earth fault
No action
Warning
Description
From source selected by parameter
5 source
Defines the fault that can be automatically reset using
parameter 31.12 Autoreset
The faults are listed in chapter
Fault code.
Defines the maximum number of automatic resets that
the drive is allowed to attempt within the time specified
by 31.15 Total trials time.
If the fault persists, subsequent reset attempts will be
made at intervals defined by
The faults to be automatically reset are defined by
Autoreset selection.
Number of automatic resets.
Defines a time window for automatic fault resets. The
maximum number of attempts made during any period
of this length is defined by
Note: If the fault condition remains and cannot be reset,
each reset attempt will generate an event and start a
new time window. In practice, if the specified number
of resets (31.14) at specified intervals (31.16) take longer
than the value of 31.15, the drive will continue to
attempt resetting the fault until the cause is eventually
removed.
Time for automatic resets.
Defines the time that the drive will wait after a fault (or
a previous reset attempt) before attempting an
automatic reset.
See parameter 31.12 Autoreset
Autoreset delay.
Selects how the drive reacts when a motor phase loss
is detected.
Note: The drive may not be able to reliably detect a
phase loss in a multimotor application: a separate
protection method (eg. a motor protection switch)
should be installed for each motor.
No action taken.
The drive trips on fault
Selects how the drive reacts when an earth fault or
current unbalance is detected in the motor or the motor
cable.
See also section Earth (Ground) fault detection
(parameter 31.20 ) (page
No action taken.
The drive generates an
31.9 External event
selection, bit 10.
Fault tracing (page
31.16 Delay time.
31.14 Number of trials.
selection.
3381 Output phase loss.
135).
A2B3 Earth leakage warning.
Parameters 369
Def / Type
FbEq 16b / 32b
1 = 1
0 / uint32
649).
1 = 1
0 / uint32
31.12
1 = 1 / 1 = 1
30.0 s / real32
10 = 1 s / 10 = 1 s
0.0 s / real32
10 = 1 s / 10 = 1 s
Fault / uint16
0
1
Fault / uint16
0
1