LED Color Status Description
PWR Green On Power supply available
Blinking ---
Off Power supply not available or defec-
tive hardware
RUN Green On Processor module is in RUN mode
Blinking ---
Off Processor module is in STOP mode
ERR Red/green On An error has occurred
Blinking Flashing fast (4 Hz): Indicates
together with RUN a firmware update
process and a flash EEPROM write.
Off No errors are encountered or only
warnings (E4 errors). This is configu-
rable (for errors 2 - 4, the LED behav-
iour is configurable.
- Red/green On Reserved
Blinking Reserved
Off Reserved
Batt Red/green On TA541 lithium battery is not installed
or is weak
Blinking ---
Off TA541 lithium battery is installed and
has sufficient capacity
1 Red/green On Reserved
Blinking Reserved
Off Reserved
2 Red/green On Reserved
Blinking Reserved
Off Reserved
3 Red/green On Reserved
Blinking Reserved
Off Reserved
4 Red/green On Reserved
Blinking Reserved
Off Reserved
5 Red/green On Reserved
Blinking Reserved
Off Reserved
The processor module can be operated manually using the buttons and switches at the front
panel. Meaning of the buttons and switches:
Buttons and
switches
Processor Modules > AC500 (Standard)
2019/04/173ADR010121, 13, en_US88
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