User`s guide

Hardware
Mitsubishi Electric, MA00758A 49
3.9 Hardware Self Test
The self-test program can be used to test aspects of operator panel functionality and
the communication ports. To run the test you will need:
– Test plugs; see Test Plug Drawing.
– 24 V DC, min. 3 A.
Follow the steps below to run the self-test program on the operator panel:
1. Power off the operator panel.
2. Go to the self-test. Set the mode switches to the self-test positions, see the table
in the Mode Switches section.
3. Power on the operator panel and follow the instructions at the bottom of the dis-
play.
4. When using the test plugs, make sure all LEDs on the 9-pin and 25-pin D-subs
are on.
5. When the self-test is finished, power off the operator panel and set all mode
switches to the OFF position.
If an error occurs during the self-test, try to fault trace. See Fault Tracing.