Mitsubishi Electric QD77MS User Manual page 286

Storage item
[Md.107] Parameter error No.
[Md.108] Servo status

When a servo parameter error occurs, the area that corresponds to the parameter
number affected by the error comes ON.

When the "[Cd.5] Axis error reset" (axis control data) is set to ON after remove the
error factor of servo amplifier side, the servo alarm is cleared (set to 0).
Refresh cycle: Immediate
This area stores the servo status.

Zero point pass
Turns ON if the zero point of the encoder has been passed even once.

Zero speed
Turns ON when the motor speed is lower than the servo parameter "zero speed."

Speed limit
Turns ON during the speed limit in torque control mode.

PID control
Turns ON when the servo amplifier is PID control.

READY ON
Indicates the ready ON/OFF.

Servo ON
Indicates the servo ON/OFF.

Control mode
Indicates the control mode of the servo amplifier.

Gain switching
Turns ON during the gain switching.

Fully closed loop control
Turns ON during the fully closed loop control.

Servo alarm
Turns ON during the servo alarm.

In-position
The dwell pulse turns ON within the servo parameter "in-position".

Torque limit
Turns ON when the servo amplifier is having the torque restricted.

Absolute position lost
Turns ON when the servo amplifier is lost the absolute position.

Servo warning
Turns ON during the servo warning.
Refresh cycle: Operation cycle
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Chapter 5 Data Used for Positioning Control
Storage details