HARDWARE MANUAL Document reference MAMPS-HW/E
VM600 machinery protection system (MPS) Edition 18 - March 2022
6-8
Operation of LEDs on CPUM panel
CPUM / IOCN CARD PAIR
6.6 Operation of LEDs on CPUM panel
6.6.1 DIAG LED
The CPUM card’s DIAG LED is used for the following purposes:
• To indicate normal operation.
• To indicate the activation of special functions (related to CPUM security settings).
Further information is given in Table 6-1.
Table 6-1: Behaviour of DIAG LED
Behaviour of
DIAG LED
Event(s)
Off (continuous) The CPUM is off or starting
Green (continuous)
The CPUM is operating normally and access to the CPUM card is
allowed (CPUM Access Lock: Unlocked).
That is, VM600 MPS rack (CPUM) security is not being used.
Green blinking slowly
(approximately once
per second)
The CPUM is operating normally but access to the CPUM card is
restricted (CPUM Access Lock: Locked).
That is, VM600 MPS rack (CPUM) security is being used.
Green blinking quickly
(approximately twice
per second) for five
seconds
The CPUM card is resetting to its default security settings.
That is, VM600 MPS rack (CPUM) security will not be used.
To Next Page
Loading...
Need help?
General