Mitsubishi C70 User Manual

2. CNC Monitor Screen
2.7 Diagnosis
I - 164
2.7.3 Spindle Monitor
When the menu [SPINDLE] is selected, the state of the spindle in operation is displayed.
2.7.3.1 Spindle Monitor
Display items 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 µm unit when
the system applies the µm unit.
SPEED (r/min) This displays the actual rotation speed of motor.
LOAD (%) This displays the motor load.
MAX CUR 1 (%) This displays the motor current command in terms of continuous current
during stalling.
An absolute value of the current command peak value 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 value of the current command peak value sampled in most
recent 2 seconds is displayed.
MAX CUR 3 (%) This displays the FB value of the motor current in terms of continuous current
during stalling.
An absolute value of the current FB peak value sampled in most recent 2
seconds is displayed.
OVER LOAD (%) This is the data used to monitor the motor overload.
OVER REG (%) This is the data used to monitor the resistance overload state when the
resistance regenerative power supply is connected.

Mitsubishi C70 Specifications

General

Brand	Mitsubishi
Model	C70
Category	Control Unit
Language	English