Panasonic MEW01777 Operating Instructions Manual page 63

Panasonic Eco Solutions Nordic AB
MEW01777 Rev: - Operating Instructions Fire alarm system EBL512 G3, V2.2.x
Valid for the wireless smoke detector 4611. The battery voltage is <
2.8 V. The batteries have to be replaced.
FAULT: Charger, control unit xx
The battery charging function is not OK. The main board 5010 may
have to be replaced.
FAULT: Charging external power supply,
control unit xx
The fault is to be found in the external power supply equipment,
which has a charging fault output connected to a programmable input
in control unit no. xx.
FAULT: Charging, output unit xxxxxx
The fault is to be found in the external power supply unit 3366.
Charging is stopped due to too high output current.
FAULT: Checksum MMI program,
control unit xx
A fault in the control unit xx MMI board 5011 software.
"System fault" is turned on. This is a very serious fault. Call for
service personnel/engineer immediately.
FAULT: Checksum system program,
control unit xx
A fault in the control unit xx Main board 5010 software.
"System fault" is turned on. This is a very serious fault. Call for
service personnel/engineer immediately.
FAULT: CU xx has no contact with control
unit xx, network x
network x = network 0 or network 1
Network 0: In a redundant network, the communication is normally
on Network 0 only.
Network 1: In a redundant network is Network 1normally in a
supervised quiescent state until there is a fault (cut-off or short circuit)
on Network 0.

Check the TLON network cables / connections. (Also for
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