Siemens S5-135U/155U User Manual
Page 105
4-39
System Manual
C79000-G8576-C199-06
The following table contains several examples.
Causes
Relay
LED Indication
Rechargeable
Battery
Battery or external
supply
Jumpers
Battery
Warning
RB
MB
/BAU
In Order
In Order
MA-NA closed
MM-NN closed
MB-NB open
–
Dark
Dark
Inactive
Faulty
In Order
MA-NA closed
MM-NN closed
MB-NB open
Active
Lit
Dark
Inactive
In Order
Faulty
MA-NA closed
MM-NN closed
MB-NB open
Active
Dark
Lit
Inactive
Faulty
Faulty
MA-NA offen
MM-NN closed
MB-NB open
Active
Lit
Lit
Active
Not monitored
In Order
MA-NA open
MM-NN closed
MB-NB open
–
Dark
Dark
Inactive
Not monitored
Faulty
MA-NA open
MM-NN closed
MB-NB open
Active
Dark
Lit
Active
Not monitored
Not monitored
MA-NA irrelevant
MM-NN open
MB-NB open
–
Dark
Dark
Inactive
Note:
Jumper MB - NB open: when line voltage returns the signal /BAU (battery
failure) is activated by a corresponding error.
Jumper MB - NB closed: when line voltage returns and during operation the
signal /BAU (battery failure) is activated by a corresponding error.
Rechargeable
Battery and
Battery Monitoring
Central Controllers and Expansion Units Power Supply Units