B&R ACOPOSinverter P84, User Manual

Page: 165 / 405

Programming guidelines
ACOPOSinverter P84 User's Manual 2.10 165
2.8.8.7 Load distribution parameters - expert level
Principle
Setpoint
Speed
Ramp Speed controller
Load distribution
K
Filter
Ref. torque
LBF LBC
LBC1
LBC2
LBC3
The load sharing factor K is determined by the torque and speed, with two factors K1 and K2 (K = K1 x K2).
K1
1
LBC1 LBC2
Speed
K2
LBC
LBC3
LBC3
LBC
Torque
Nominal torque
(1 + LBC3)
Load distribution parameters
Code Name/Description Setting range Factory settings
LbC1 [Correction min spd] 0 to 598.9 Hz 0
This parameter can be accessed if [Load distribution] (LbA) = [Yes] (YES)
Minimum speed for load distribution correction in Hz. Below this threshold, no corrections are made. Used to prevent correction at very low speed
if correction would hamper rotation of the motor.
LbC2 [Correction max spd] [Correction min spd] (LbC1)
+ 0.1 to 599 Hz
0.1
Parameter can be enabled if [Load distribution] (LbA) = [Yes] (YES) .
Speed threshold in Hz above which maximum load correction is applied.
LbC3
[Torque offset]
0 to 300% 0%
Parameter can be enabled if [Load distribution] (LbA) = [Yes] (YES) .
Minimum torque for load correction as a % of the rated torque. Below this threshold, no corrections are made. Used to avoid torque instabilities
when the torque direction is not constant.
LbF [Sharing filter] 100 ms to 20 s 100 ms
Parameter can be enabled if [Load distribution] (LbA) = [Yes] (YES) .
The (filter) time constant for the correction in ms. Used with flexible mechanical clutches to avoid instability.
Parameter that can be modified during operation or when stopped.