Mitsubishi Electric E80 Series, Руководство по обслуживанию, Страница: 126 / 212

M800/M80/E80 Series Maintenance Manual
4 Failure Diagnosis
99 IB-1501273-F
4.7.2 Drive Monitor Screen (Spindle Unit)
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 or .
Display items
Display items Details
Gain (1/s) This displays the position loop gain. The position loop gain is obtained by the following
formula:
Droop (i) The error of the actual machine position to the command position is called droop. This
error is proportional to command speed value. (*1)
Speed (r/min) This displays the actual rotation speed of motor.
Load (%) This displays the motor load.
Max current 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 dis-
played.
Max current 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 current 3 (%) 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.
Overload(%) This is the data used to monitor the overload of drive unit.
Regen load (%) This is the data used to monitor the resistance overload state when the resistance regen-
erative power supply is connected.
Est disturb torq (%) This displays the estimated disturbance torque in terms of stall rated torque when the dis-
turbance observer is valid.
Diagn
Feedrate (mm/s)
Tracking delay error (mm)