Yaskawa MP920 Motion Module - Manual (Page 373)

8.2 Alarms and Actions Taken
8-17
8
„ Servo Drive Command Timeout Error
This occurs when MECHATROLINK SERVOPACK Modules are allocated with SERVOPACK power
OFF.
„ Absolute Encoder Count Exceeded
SVA-01A SVA-02A SVB-01 PO-01
Not supported Not supported Supported Not supported
Detection Timing
• Detects while a motion command is being executed.
• Detected by the MECHATROLINK communications control section during the servo command
response check in each processing section.
Alarm Processing
• The command that is being executed will be terminated.
Errors and Causes
• A MECHATROLINK servo command was not completed within the specified time (3 s).
Action Taken
• Check the connection between the Motion Module and the MECHATROLINK SERVOPACK.
• Check the MECHATROLINK SERVOPACK alarm.
SVA-01A SVA-02A SVB-01 PO-01
Supported Supported Supported Not supported
Detection Timing
• Enabled only in Position Control Mode.
• Enabled only when an electronic gear is used while infinite length axis is set with an absolute
encoder and this error is detected by the position control section when power is turned ON.
Alarm Processing
• Absolute position data read from the absolute encoder will be ignored when the sensors are ON.
Errors and Causes
• A calculation error occurred when absolute position data read from the absolute encoder was
converted from pulse to reference units when power is turned ON.
Action Taken
• Review settings like the motion fixed parameter gear ratio and number of encoder pulses.
INFO