Panasonic EBL128 - Current Consumption Calculations

Panasonic Eco Solutions Nordic AB
MEW01622 Rev: - EBL128 Planning Instructions V2.0.x
167
 Every 4
th
hour the battery circuit (connection cables, fuses, etc.)
resistance is checked. A resistance over 1.4 ohm will generate
a fault and the following fault message will be shown:
FAULT: Low battery capacity
Date: MM-DD Time: HH:MM
NOTE! Regarding this fault and the New Zealand convention, see
chapter "FAULT: Low battery capacity", page 121.
 In case of no main power source (230 V AC), i.e. when the
backup battery is used as the only power source, the battery
will be switched off at a battery voltage below 20.8 V.
159
The
c.i.e will in this case be totally powerless (dead). Only the
battery voltage will be checked and when it is at least 22 V,
the battery will be switched on and the c.i.e. will work again.
24.2 Current consumption calculations
In order not to overload the rectifier and to check / calculate the
required back-up battery capacity, the total EBL128 current
consumption (excl. battery charging current) has to be calculated.
NOTE! There is no battery charging when fire alarm is activated in
EBL128.
Use the values in chapter "Current consumption", page 162, to
calculate the following current consumptions:
 I
CN
= the current consumption for EBL128
160
in normal
state.
 I
RN
= the current consumption for all other equipment
161
in
normal state.
 I
CA
= the current consumption for EBL128
160
in alarm state.
 I
RA
= the current consumption for all other equipment
162
in
alarm state.
The total EBL128 current consumption in Normal (quiescent) state:
I
TN
= I
CN
+ I
RN
The total EBL128 current consumption in Alarm (activated) state:
I
TA
= I
CA
+ I
RA
Comments regarding (I
TN
):
I
TN
has to be < 0.7 A.
159
This is done in order not to damage the battery.
160
Including the COM loop units but excl. the battery charging current.
161
External equipment connected to the control unit (e.g. ext. FBPs, door
release magnets, relays, routing equipment, etc.).
162
External equipment connected to the control unit (e.g. ext. FBPs,
sounders, relays, routing equipment, etc.).