Panasonic Electric Works Nordic AB
MEW01351
Rev: -
Planning Instructions Fire alarm system EBL512 G3, V1.1.x
148
24
Current consumption
The different loop units have different current consumption. Note that
some units have much higher current consumption in "active state".
To check the current consumption on the COM loops, cable lengths,
etc. the tables below can be used. See also dwg. 512-41 and chapter
"COM loop cable length", page 145. Also, to get a total current
consumption overview and to check if the battery capacity is enough,
the tables below can be used.
The current consumption is normally shown at nominal voltage (24 V
DC), in
Normal state
(quiescent) and in
Alarm state
(active). By
battery back-up (i.e. no mains) the voltage can be 27 – 21 V DC.
See also chapter "Power supply", page 152.
C.i.e. units
Normal state
(quiescent) (mA)
Alarm state
(active) (mA)
Control unit 5000 (
without
printer)
126
230
290
Control unit 5000 (
with
printer)
126
253
312
127
Control unit 5001 ("grey box without front, printer, etc.)
126
179
214
Printer in 5000
23
350
8 zones expansion board 4580
15
128
15
129
8 relays expansion board 4581
15
15
In & outputs expansion board 4583, no units connected
15
15
TLON connection board 1590
approx. 5
approx. 5
Web-server II 1598
60
65
The control unit values above are measured during battery back-up
(i.e. no mains).
126
Control unit – backup battery powered. COM loops and ext. equipment
current consumption not included.
127
When the printer is active the current consumption is 667 mA
momentarily.
128
Add 0.5 mA per input (zone) for end-of-line capacitor (470 nF) and 3 mA
per input for end-of-line resistor (10K).
129
Add 30 mA per input (zone) activated. (Each input has a 30 mA current
limitation, i.e. also for short-circuit on the line.)
