ABB ACL30 User Manual

Program features 157
 Motor stall
The Motor stall function protects the motor in stall situations where torque level is
about to rise too high at lower speeds, that is, it monitors that the motor torque (01.06
TORQUE) stays within user-defined torque limits.
You can define the torque limits with parameters 81.05 STALL TORQ MAX and 81.06
STALL TORQ MIN. If the motor torque exceeds these limits while the motor is running
at a speed lower than defined with parameter 81.07 STALL SPEED LIM, the drive
trips on fault MOTOR STALL after the period defined with parameter 81.08 STALL
FAULT DLY.
The function is enabled when 81.07 STALL SPEED LIM is > 0.
Settings
Diagnostics
Alarms
BRAKE SLIP The brake is slipping while the motor is not running.
Faults
SPEED MATCH The speed error is higher than defined with parameter 81.02 SPD STD
DEV LVL in the steady state or defined with parameter 81.03 SPD RMP
DEV LVL in the ramp state, and the time delay defined with parameter
81.04 SPEED MATCH DLY has elapsed.
Parameters Additional information
81.05 STALL TORQ MAX Defines the maximum torque limit for generating fault MOTOR STALL.
81.06 STALL TORQ MIN Defines the minimum torque limit for generating fault MOTOR STALL.
81.07 STALL SPEED LIM Defines the speed limit for the Motor stall function.
81.08 STALL FAULT DLY Defines the time delay for generating fault MOTOR STALL.
Signals Additional information
05.02 LIFT FW bit 4
(MOTOR STALL)
Displays whether fault MOTOR STALL has occurred or not.
Faults
MOTOR STALL Motor actual speed is lower than defined with parameter 81.07 STALL
SPEED LIM, the drive has exceeded the torque limits defined with
parameters 81.05 STALL TORQ MAX and 81.06 STALL TORQ MIN, and
the time delay defined with 81.08 STALL FAULT DLY has elapsed.
Signals Additional information

ABB ACL30 Specifications

General

Brand	ABB
Model	ACL30
Category	DC Drives
Language	English