ABB ACQ80, Firmware Manual

Page: 62 / 390

62 Program features
Stall function (parameters
31.24
…
31.28
)
The drive monitors the stall current limit and its related parameters, and helps
to prevent stalling of the motor. You can adjust the supervision limits (current,
frequency and time) and choose how the drive reacts to a stall condition.
Overspeed protection (parameter
31.30
)
The user can set overspeed limits by specifying a margin that is added to the
present maximum and minimum speed limits.
Local control loss detection (parameter
49.05
)
The parameter selects how the drive reacts to a control panel or PC tool
communication break.
Time
Current
31.25 Stall
current limit
30.17
Maximum
current
30.09
Cur Lim
Monitor
Time
31.28
Stall
time
30.10
1)
31.24
2) 3)
Current Limit
Actions
Stall function
Notes
1) By default, displays a warning message when the drive reaches maximum current
limit (
30.17
) and exceeds the current limit monitor time (
30.09
). You can configure the
actions as required.
2) The stall condition occurs when the output frequency is below the level set by
parameter
31.27 Stall frequency limit
or the motor speed is below the level set by
parameter
31.26 Stall speed limit
.
3) If enabled, displays a warning message when the drive reaches stall current limit
(
30.17
) and exceeds the stall time (
31.28
). You can configure the actions as required. By
default, stall protection is enabled.