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4 INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT
4.7 Single module test
Whether the D75P2 is operating correctly is confirmed with the LED displays on the
D75P2 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 D75P2, and when the D75P2 is
running.
Carry this test out after connecting the D75P2, drive unit, motor and external devices.
The "mode switch", "17-segment LED" and "axis display LED" used in the explanation
refer to the D75P2 switches and LEDs.
(Step 1) Turning ON the power
1) Stop the PLC CPU.
2) Turn ON for the PLC CPU (when the D75P2 is mounted on the remote
station, the mounted station and master station), and the power for the drive
unit and motor connected to the D75P2.
3) The D75P2 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 D75P2 state, one of the following will appear on the 17-
segment LED and axis display LED.
Confirm that the display matches the D75P2 state.
D75P2 state
17-segment
LED
Each axis' axis display LED (AX1, AX2)
Running RUN
The LED corresponding to the operating axis
flickers.
In test mode TEST The LEDs of all axes turn on.
Idle IDL OFF
Error occurrence ERR
The LED corresponding to the axis in error
flickers.
2) When the mode switch is pressed, the state will shift to the operation
monitor 2 described in (Step 3).