ABB ACSM1 - Page 133

Parameters and firmware blocks
133
22.07 ABOVE SPEED LIM FW block: SPEED FEEDBACK (see above)
Defines the supervision limit for the actual speed.
0…30000 rpm Supervision limit for actual speed.
22.08 SPEED TRIPMARGIN FW block: SPEED FEEDBACK (see above)
Defines, together with 20.01 MAXIMUM SPEED and 20.02 MINIMUM SPEED, the maximum allowed
speed of the motor (overspeed protection). If the actual speed (1.01 SPEED ACT) exceeds the speed
limit defined by parameter 20.01 or 20.02 by more than 22.08 SPEED TRIPMARGIN, the drive trips
on fault OVERSPEED.
Example: If the maximum speed is 1420 rpm and speed trip margin is 300 rpm, the drive trips at
1720 rpm.
0…10000 rpm Speed trip margin.
22.09 SPEED FB FAULT FW block: SPEED FEEDBACK (see above)
Selects the action in case of speed feedback data loss.
(0) FAULT Drive trips on a fault (OPTION COMM LOSS, ENCODER 1/2
FAILURE or SPEED FEEDBACK depending on the type of problem).
(1) WARNING Drive continues operation with open loop control and generates an
alarm (OPTION COMM LOSS, ENCODER 1/2 FAILURE or SPEED
FEEDBACK depending on the type of problem).
(2) NO Drive continues operation with open loop control. No faults or alarms
are generated.
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20.01 MAXIMUM SPEED
20.02 MINIMUM SPEED
22.08 SPEED TRIPMARGIN
22.08 SPEED TRIPMARGIN
Speed