Speed Limit and Speed Limit Bias

The drive reads the speed limit setting from the input selected in d5-03 [Speed Limit Selection]. You can use d5-05 [Speed Limit Bias] to add a bias to this speed. Parameter d5-08 [Uni-directional Speed Limit Bias] sets how the drive applies bias to the speed limit.

Table 1 shows the relation between these settings:

Table 1. Speed Limit, Speed Bias and Speed Limit Priority Selection

	Operating Conditions
Run command	Forward	Reverse	Forward	Reverse	Forward	Reverse	Forward	Reverse
Torque reference direction	+ (Positive)	+ (Positive)	- (Negative)	- (Negative)	- (Negative)	- (Negative)	+ (Positive)	+ (Positive)
Speed limit direction	+ (Positive)	- (Negative)	- (Negative)	+ (Positive)	+ (Positive)	- (Negative)	- (Negative)	+ (Positive)
Direction of motor rotation	Forward		Reverse		Forward		Reverse
Generated torque (d5-08 = 0 [Disabled]) 1
Generated torque (d5-08 = 1 [Enabled]) 1
Application example