Drive Monitor Screen (Spindle Unit) - Mitsubishi Electric C80 series Maintenance Manual

C80 Series Maintenance Manual
4 Failure Diagnosis

4.7.2 Drive Monitor Screen (Spindle Unit)

Diagn
Drv mon
The various data related to the spindle can be monitored by selecting the menus [Drv mon] -> [Spindle unit] on the diagnosis
(Diagn) screen.
Change the display item with
Display items
Display items
Gain (1/s)
Droop (i)
Speed (r/min)
Load (%)
Max current 1 (%)
Max current 2 (%)
Max current 3 (%)
Overload(%)
Regen load (%)
Est disturb torq (%)
or .
This displays the position loop gain. The position loop gain is obtained by the following
formula:
Feedrate (mm/s)
Tracking delay error (mm)
The error of the actual machine position to the command position is called droop. This
error is proportional to command speed value. (*1)
This displays the actual rotation speed of motor.
This displays the motor load.
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 dis-
played.
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.
This displays the FB value of the motor current in terms of continuous current during stall-
ing.
An absolute value of the current FB peak value sampled in most recent 2 seconds is dis-
played.
This is the data used to monitor the overload of drive unit.
This is the data used to monitor the resistance overload state when the resistance regen-
erative power supply is connected.
This displays the estimated disturbance torque in terms of stall rated torque when the dis-
turbance observer is valid.
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Details
IB-1501454-C