YASKAWA SGDA series User Manual

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USING THE DIGITAL OPERATOR
4.2.4 Reference Offset Automatic Adjustment
196
• If the mode switch is used, take one of the steps below before running autotuning.
(1) Cancel the mode switch.
(2) Set the mode switch operating level to a high level.
Refer to page 118 for details about setting the mode switch.
• If using the S-ON
signal to set the servo ON status, display before turning
ON the S-ON
signal.
4.2.4 Reference Offset Automatic Adjustment
1) Why Does Reference Offset Occur?
Using a speed/torque control (SGDA-jjjS) type, the motor may rotate slowly when
the reference voltage is intended to be 0 V.
This occurs when the host controller or external circuit has a small offset (measured in
mV) in the reference voltage.
Automatic Adjustment of Reference Voltage
The reference offset automatic adjustment mode automatically measures the offset and
adjusts the reference voltage. It adjusts both speed and torque references.
The following diagram illustrates automatic adjustment of an offset in the reference
voltage from the host controller or external circuit.
Reference
Voltage
Reference
Speed or
Reference
Torque
Offset
Automatic Adjustment
of Offset
Reference
Voltage
Offset
Automatically
Adjusted in
Servopack
Reference
Speed or
Reference
Torque
2) After completion of offset automatic adjustment, the amount of offset is stored in the
Servopack.
The amount of offset can be checked in the speed reference offset manual adjustment
mode. Refer to sub-section 4.2.5 for details.
4
SGDA- S
Speed/Torque

YASKAWA SGDA series Specifications

General

Brand	YASKAWA
Model	SGDA series
Category	Servo Drives
Language	English