Yaskawa Sigma II Series DC Power Input SGMAJ - Manual (Page 213)

8 Operation
8.5.3 Adjusting Offset
8-40
(1) Automatic Adjustment of the Speed Reference Offset
The automatic adjustment of reference offset (Fn009) cannot be used when a position loop has been formed with
a host controller and the error pulse is changed to zero at the servomotor stop due to servolock. Use the speed ref-
erence offset manual adjustment (Fn00A) described in the next section for a position loop.
The zero-clamp speed control function can be used to force the motor to stop while the zero speed reference is
given. Refer to 8.5.6 Using the Zero Clamp Function.
The speed reference offset must be automatically adjusted with the servo OFF.
Adjust the speed reference offset automatically in the following procedure.
Step Display after
Operation
Key Description
1 Turn OFF the SERVOPACK, and input the 0-V reference voltage
from the host controller or external circuit.
2 Press the DSPL/SET Key to select the utility function mode.
3 Press the LEFT/RIGHT or UP/DOWN Key, or UP or DOWN Key
to select parameter Fn009.
*The digit that can be set will blink.
4 Press the DATA/ENTER Key. “rEF_o” will be displayed.
5 Press the DSPL/SET Key.
The reference offset will be automatically adjusted.
When completed, “donE” will blink for about one second.
6
About one second
later
After “donE” is displayed, “rEF_o” will be displayed again.
7 Press the DATA/ENTER Key to return to the Fn009 display of the
utility function mode.
IMPORTANT
Servomotor
Slow rotation
(Servo ON)
SERVOPACK
Servo OFF
0-V speed
reference
Host
controller
DSPL
SET
(DSPL/SET Key)
DATA
ENTER
(DATA/ENTER Key)
DSPL
SET
(DSPL/SET Key)
DATA
ENTER
(DATA/ENTER Key)