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)
Summary of Contents for SGDJ Series
Page 19: ...xix INDEX Revision History ...
Page 34: ...2 Selections 2 8 2 4 Selecting Cables CN4 c d e FG ...
Page 176: ...8 3 8 ...