YASKAWA E-V Series User Manual page 123

5 Operation
5.3.2 Reference Offset Adjustment
Step
1
2
3
4
5
6
7
Note: The automatic adjustment of reference offset (Fn009) cannot be used when a position loop has been formed with a
host controller. Use the speed reference offset adjustment manual mode described in (2) Manual Servo Tuning of the
Speed Reference Offset.
(2) Manual Servo Tuning of the Speed Reference Offset
This method adjust the offset inputting the amount of offset.
Use the speed reference offset manual servo tuning (Fn00A) in the following situations:
• If a position loop is formed with the host controller and the error is zeroed when servolock is stopped.
• To deliberately set the offset to some value.
• To check the offset data set in the speed reference offset automatic adjustment mode.
The offset setting range and setting units are as follows:
Offset setting unit
Adjust the speed reference offset using following steps.
5-20
Display after
Operation
MODE/SET
MODE/SET
MODE/SET
MODE/SET
MODE/SET
Speed reference
Offset adjustment
range
Keys
Turn OFF the servo ON (S/_ON) signal, and input the 0 V
reference voltage from the host controller or external cir-
cuit.
Host
controller
Press the MODE/SET Key to select the utility function
mode.
DATA/
Press the UP or the DOWN Key to select Fn009.
DATA/
Press the DATA/SHIFT Key for approximately one second.
"rEF_o" is displayed.
DATA/
Press the MODE/SET Key.
The reference offset is automatically adjusted.
When completed, "donE" blinks for approximately one sec-
DATA/
ond.
After "donE" is displayed, "rEF_o" is displayed again.
Press the DATA/SHIFT Key for approximately one second.
"Fn009" is displayed again.
DATA/
Offset Adjustment Range: ± 15000
(Speed Reference: ± 750 mV)
Analog
Offset Setting Unit
input
(Speed Reference: 0.05 mV)
voltage
Description
SERVOPACK Linear servomotor
0 V force
reference
Small movement
Servo OFF
(Servo ON)