B&R ACOPOSinverter P84, User Manual

Page: 258 / 405

Programming guidelines
258 ACOPOSinverter P84 User's Manual 2.10
Note:
If the motor is aligned with an encoder that is assigned to the speed feedback value, the torque control
function trips a fault [Load relax.] (AnF) . One of the following solutions should be used:
•
Configuration of [Load slip detection] (Sdd) = [No] (nO) .
•
Setting of [M. ctrl. pos bandw] (dbP) and [M. ctrl. neg bandw] (dbn) each to a value below 10%
of the rated motor frequency.
2.8.11.19 Torque limiting
Two types of torque limitation are possible:
•
With a value that is fixed by a parameter
• With a value that is set by an analog input (AI or encoder)
If both types are enabled, the lowest value is taken into account. The two types of limitation can be configured or
switched remotely using a logic input or via the communication bus.
Torque limits
by parameter
by analog or
Encoder input
Consideration of
the lowest value
[Motoring torque lim]
(tLIM)
[Gen. torque lim]
(tLIG)
[AI.] (AI.)
[Encoder] (PG)
LI
[LI]
[Yes]
(YES)
LI
[No]
(nO)
[Yes]
(YES)
[Torque limit. activ.] (tLA)
[LI]
Limit value
[Torque ref. assign.] (tAA)
[No]
(nO)
[AI]
[M Begr. über AI] (tLC)
Torque limits