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Panasonic Eco Solutions Nordic AB
MEW01777
27.3
Action
"
"
Menu
Scroll to menu H5.
↲
"
"
Scroll to menu A3.
↲
"
"
Rev: -
Service mode for COM-loop (H5/A3)
This mode can be used when commissioning an installation and by
maintenance. The COM loop communication (polling) will be turned
off but there is still voltage (24 V DC) on the loop in the A-direction
only, in the B-direction only or in both directions at the same time.
A volt meter can be used, e.g. to check the voltage / voltage drop on
different places on the loop or to find a single break on the loop.
(Since there is voltage on the loop, short circuit isolators will work
normally.)
It is recommended to do this check also when EBL512 G3 is power
supplied via the backup battery only, since the battery voltage can be
different (compared with the rectifier voltage) due to the battery
condition, backup duration, etc.
The "Service mode for COM-loop" is indicated by LED Fault /
Disablements "General disablements" (L10).
If you log off this menu, the "Service mode for COM-loop" will be
terminated automatically.
NOTE! If short-circuit is detected when a COM loop is in service
mode, the loop will be disabled and a fault message will be displayed:
FAULT: Short-circuit SCI A <-> SCI B,
loop x, control unit xx
...independent of where the short-circuit is situated on the loop.
Text in display
H5 Service
A1 Calibration of supervised output
A2 Sensitive fault detection mode
A3 Service mode for COM-loop
A4 Display current consumption in control unit
A5 Display current consumption on COM-loop
A6 Display statistics for communication
A7 Activate address setting mode for DU
A8 Setup wireless detectors
A9 SSD information
A3 Service mode for COM-loop
Service mode for loop:
Operating Instructions Fire alarm system EBL512 G3, V2.2.x
0
CU: 00
A Direction
B Direction
Both
122
Comments
According to chapter
"Access", see page 88.
Write loop and control unit
numbers. Use "▼" or "▲"
to scroll to the wanted
direction(s) and press
↲
"
"
.
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