Diagnosis Based On The Drive Monitor Screen; Drive Monitor Screen (Servo Unit) - Mitsubishi Electric C80 series Maintenance Manual

C80 Series Maintenance Manual
4 Failure Diagnosis

4.7 Diagnosis Based on the Drive Monitor Screen

4.7.1 Drive Monitor Screen (Servo Unit)

Diagn
Drv mon
The various data related to the servo axis (NC axis, PLC axis) can be monitored by selecting the menus [Drv mon] -> [Servo
unit] on the diagnosis (Diagn) screen.
Change the display item with
The axis name set in the base axis specification parameter "#1022 axname2" appears at the axis name.
Display items
Display items
Gain (1/s)
Droop (i)
Speed (r/min)
Feedrate (mm/s)
Load current (%)
Max current 1 (%)
Max current 2 (%)
IB-1501454-C
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.
This follows the setting and display unit (#1003 iunit).
This displays the actual rotation speed of motor.
This displays the feedrate on the machine end.
This displays the FB value of the motor current in terms of continuous current during
stalling.
This displays the motor current command in terms of continuous current during stall-
ing.
An absolute value of the current command peak value sampled after the power ON is
displayed.
This displays the motor current command in terms of continuous current during stall-
ing.
An absolute value of the current command peak value sampled in most recent 2 sec-
onds is displayed.
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Details