Rockwell Automation 1746-HSRV SLC Servo Control Module User Manual - Manual (Page 97)

Publication 1746-6.1.2 - July 2000
7-18 Setting Up Your SLC Servo Module
Coarse Calibrating Perform the following steps to coarse calibrate the drive input scaling
to SLC Servo Module DAC output voltage:
1. Initiate a positive direction speed move at a safe operating
speed (e.g., < 50%) of the SLC Servo Module’s maximum speed.
2. Record the commanded speed and the actual speed contained in
the file F48.
3. Cancel the speed move.
4.
Fine Calibrating Perform the following steps to fine calibrate the DAC output voltage
scaling:
1. Initiate a speed move in a positive direction at the highest (but
safe) speed.
2. Record the axis speed.
3. Cancel the speed move.
4. Repeat steps 1, 2, and 3 for the same magnitude speed
command in a negative direction.
If the axis speed: Then:
Does not match the
command speed within 3% 1. Adjust the drive input scaling until the
observed speed in file F48 matches the
command speed.
2. Repeat the positive speed move at a
speed that is as high a speed as safety
permits to verify drive input calibration.
3. Repeat steps 1 and 2 in this table until
the speeds are within 3%.
Does match the command
speed within 3% Go to Fine Calibration of the DAC Output Voltage
Scaling.
IMPORTANT
Reverse the speed by reversing the speed
specifications for the speed move that is executing.