YASKAWA JUSP-MD D01A Series User Manual page 153

(1) Automatic Adjustment of Reference Offset (Fn009)
The automatic adjustment of reference offset measures the amount of offset and adjusts the reference voltage
automatically.
After completion of the automatic adjustment, the amount of offset measured is saved in the multi-winding
drive unit.
The servomotor power must be OFF when automatically adjusting the reference offset.
Note: The adjusted value is not initialized by executing the Fn005 function (Initializing Parameter Settings).
 Preparation
The following conditions must be met to adjust the offsets of torque analog reference automatically. The mes-
sage "NO-OP" indicating that the settings are not appropriate will be displayed, if the following conditions are
not met.
• The write prohibited setting parameter (Fn010) must be set to Write permitted (P.0000).
• The servomotor power must be OFF.
 Operating Procedure
Adjust the reference offset automatically with the panel operator using the following steps.
Display after
Step
Operation
1 –
2
3
4
5
6
Note: The automatic adjustment of reference offset (Fn009) cannot be used when a position loop has been formed with the
host controller. Use the manual adjustment of reference offset described in (2) Manual Adjustment of Reference Off-
set (Fn00B).
Keys
Turn OFF the servo ON signal (/S-ON), and input the 0-V
reference voltage from the host controller or external cir-
cuit.
–
Press the MODE/SET Key to select the utility function.
MODE/SET DATA/
Press the UP or the DOWN Key to select Fn009.
MODE/SET DATA/
Press the DATA/SHIFT Key for approximately one second.
"rEF_o" is displayed.
MODE/SET DATA/
Press the MODE/SET key.
After "donE" flashes for approximately one second,
"rEF_o" is displayed again.
MODE/SET DATA/
Press the DATA/SHIFT Key for approximately one second.
"Fn009" is displayed again.
MODE/SET DATA/
Operation
Multi-winding
drive system
0-V torque
Host
reference
controller
Servo OFF
5.5 Torque Control
Servomotor
Slight rotation
(Servo ON)
5
5-45