Mitsubishi C70

2. CNC Monitor Screen
2.7 Diagnosis
I - 157
2.7.2 Servo Monitor
When the menu [SERVO] is pressed, the SERVO MONITOR screen is displayed indicating servo status
during operation.
2.7.2.1 Servo Monitor
Display item Details
GAIN (1/s) This displays the position loop gain. The position loop gain is:
Feedrate (mm/s)
Tracking delay error (mm)
DROOP (i) The error of the actual machine position to the command position is called
droop.
This error is proportional to command speed value.
The unit "i" means the input unit. A value will be displayed in
μ
m unit when
the system applies the
μ
m unit.
SPEED (r/min) This displays the actual rotation speed of motor.
FEEDRATE (mm/s) This displays the feedrate detected by the detector mounted on the machine
end.
CURRENT (%) This displays the FB value of the motor current in terms of continuous current
during stalling.
MAX CUR 1 (%) This displays the motor current command in terms of continuous current
during stalling.
An absolute peak value of the current command, which was sampled after
the power ON, is displayed.
MAX CUR 2 (%) This displays the motor current command in terms of continuous current
during stalling.
An absolute peak value of the current command, which was sampled within
the last two seconds, is displayed.