
4.CONFIRMATION OF THE OPERATION START-UP PROCEDURE B-65285EN/03
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4.1.1 Checking the Status LEDs
Position of the
STATUS LEDs
No. STATUS LEDs Description
1
The STATUS display LED is off.
Control power has not been supplied.
The control power circuit is defective. See Section
4.1.3.
2
Not ready
The main circuit is not supplied with power (MCC
OFF).
Emergency stop state
3
Ready
The main circuit is supplied with power (MCC ON).
The PSM is operable.
4
Warning state (the dot at the bottom right lights.)
A failure has occurred in the PSM. The PSM can
keep operating. However it will enter an alarm state
after a certain period of time.
See Section 3.1 of Part II.
5
Alarm state
The PSM is not operable.
See Section 3.1 of Part II.