ABB ACL30 User Manual

150 Program features
 Torque proving
The Torque proving function ensures that the drive is able to produce torque before it
releases the brake and starts the elevator operation. For this, the function performs
an electrical elevator system check.
Before opening the brake, the function compares the calculated actual torque of the
drive with a reference torque (parameter 35.83 TORQ PROVING REF). If the torque
proving is not successful, that is, the actual torque does not exceed the reference
value during a proving delay (parameter 35.84 TRQ PROV FLT DLY), the function
prevents the brake from opening, and the drive trips on fault TORQUE PROVE.
Torque proving can be selected to be performed at every start or at start after defined
time period of standby (>30min stby, >1 hr stby, >90 min stby, >2 hr stby).
Settings
Diagnostics
Parameters Additional information
35.82 TORQUE PROVING Enables/disables the Torque proving function.
35.83 TORQ PROVING REF Defines the torque proving reference.
35.84 TRQ PROV FLT DLY Defines the time delay for generating fault TORQUE PROVE.
Signals Additional information
Actual signals
05.02 LIFT FW bit 1
(TORQUE PROVE)
Displays whether fault TORQUE PROVE has occurred or not.
Faults
TORQUE PROVE The drive was not able to provide sufficient torque during a torque proving
sequence.

ABB ACL30 Specifications

General

Brand	ABB
Model	ACL30
Category	DC Drives
Language	English