User manual

Rockwell Automation Publication MOTION-UM003F-EN-P - March 2015 191

Home an Axis Chapter 8

Scaling

Changing the Scaling parameters can potentially generate an APR fault because

internal constants computed from these two parameters can generate a motion

resolution change. If this happens, an APR fault is generated.

Drive Event Machine Reference Retained

The drive cycled power with incremental feedback. No

The drive firmware updated with incremental feedback. No

Change the drive. Yes

Cycle power to the drive. Yes

Cycle power to the drive with absolute feedback. Yes

Change the motor, assuming the motor does not contain a feedback device. Yes

The drive firmware was update with absolute feedback. Yes

The drive was disconnected or reconnected. Yes

The drive was Inhibited or Uninhibited. Yes

The drive was swapped with the same feedback. Yes

Scaling Event Machine Reference Retained

Scaling signature changed.

The scaling signature changed. This includes Transmission, Linear Actuator,

Motion Resolution, and Motion Unit attribute changes.

(1) The term Battery in this table assumes the 1756-L6x or 1756-L6xS controller with a battery or a 1756-L7x and a 1756-ESMxxx Energy Storage Module.

(2) 1756-L6x or 1756-L6xS controller.

(3) 1756-L7x controller.

Table 26 - APR Recovery Scenarios