Current Consumption - Panasonic MEW01 351 Planning Manual

Panasonic Electric Works Nordic AB
MEW01351 Rev: -
24
C.i.e. units
Control unit 5000 (without printer)
Control unit 5000 (with printer)
Control unit 5001 ("grey box without front, printer, etc.)
Printer in 5000
8 zones expansion board 4580
8 relays expansion board 4581
In & outputs expansion board 4583, no units connected
TLON connection board 1590
Web-server II 1598
Planning Instructions Fire alarm system EBL512 G3, V1.1.x

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.
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.)
148
Normal state
(quiescent) (mA)
126
230
126
253
126
179
23
128
15
15
15
approx. 5
60
Alarm state
(active) (mA)
290
127
312
214
350
129
15
15
15
approx. 5
65