ABB ACQ80-04 - Page 47

Program features 47
and how the drive should react to these conditions can be set in the parameters
30.17, 30.09, and 30.10 respectively.
By default, when the drive reaches the maximum current limit and exceeds the
monitor time, a warning message (A8B6) is displayed.
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
currently-used maximum and minimum speed limits.
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 re-
quired.
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, no action
is configured.
ACQ80 FW.book Page 47 Thursday, February 14, 2019 11:33 AM