Overrun Limit; Parameters Requiring Settings; Operation - Omron SMARTSTEP 2 SERIES User Manual

5-9 Overrun Limit

The overrun limit function is enabled only in Position Control Mode.
The overrun limit is used to stop operation via an alarm if the Servomotor's allowable operating
range set in Overrun Limit Setting (Pn26) is exceeded.
The overrun limit is effective in the following case:
Preventing impact on the edges of the machine because of Servomotor oscillation.

Parameters Requiring Settings

Parameter
Parameter name
No.

Overrun Limit

Pn26
Setting

Operation

Servomotor Stopped (Servo Locked)
Since the Servomotor is stopped, the Servomotor's allowable operating range is within the travel
distance set in the Overrun Limit Setting (Pn26) for both sides of the Servomotor stop position. If
the load of the Servomotor enters the shaded area due to oscillation, an alarm will occur.
Servo-
motor
In Operation (Traveling)
When a position command is input, the Servomotor's allowable operating range will increase
according to the position command. In the following figure, an alarm will occur if the load enters the
setting range on the left side before travel and the setting range on the right side after travel due to
oscillation or for other reason.
Servo-
motor
Range of Err43
Set the operating range for the Servomotor. The overrun
limit is disabled if the setting is 0.
Pn26 Pn26
Servomotor's
allowable
Range of Err43
operating range
Pn26
Servomotor's allowable
operating range
Explanation
Range of Err43
Load
Pn26
Range of Err43
5-9 Overrun Limit
Reference
Page 5-41
5-16
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