Single Module Test - Mitsubishi A1SD75M3 User Manual

4 INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT

4.4.2 Single module test

Whether the AD75 is operating correctly is confirmed with the LED displays on the
AD75 main body.
The "single module test" methods are described below.
The "single module test" can be carried out when there is no sequence program stored
in the PLC CPU, when there is no data stored in the AD75, and when the AD75 is
running.
Carry this test out after connecting the AD75, servo amplifier, servomotor and external
devices. The "mode switch", "17-segment LED" and "axis display LED" used in the
explanation refer to the AD75 switches and LEDs.
(Step 1) Turning ON the power
1) Stop the PLC CPU.
(When the AD75 is mounted on the remote station, stop the master station.)
2) Turn ON for the PLC CPU (when the AD75 is mounted on the remote
station, the mounted station and master station), and the power for the
servo amplifier and servomotor connected to the AD75.
3) The AD75 OS type [same displays as (Step 4)] will appear on the 17-
segment LED for one second.
4) After one second passes, the state will shift to the operation monitor 1
described in (Step 2).
(Step 2) Operation monitor 1
1) Depending on the AD75 state, one of the following will appear on the 17-
segment LED and axis display LED.
Confirm that the display matches the AD75 state.
AD75 state
Running
In test mode
Idle
Error occurrence
2) When the mode switch is pressed, the state will shift to the operation
monitor 2 described in (Step 3).
17-segment
Each axis' axis display LED (AX1 to 3)
LED
The LED corresponding to the operating axis
RUN
flickers.
TEST The LEDs of all axes turn ON.
IDL OFF
The LED corresponding to the axis in error
ERR
flickers.
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MELSEC-A