Current Consumption Calculations - Panasonic EBL128 Planning Instructions

Panasonic Eco Solutions Nordic AB
MEW01622 Rev: -
24.2
 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
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.
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.

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
state.
 I
RN
= the current consumption for all other equipment
normal state.
 I
CA
= the current consumption for EBL128
 I
RA
= the current consumption for all other equipment
alarm state.
The total EBL128 current consumption in Normal ( quiescent ) state:
TN CN RN
I = I + I
The total EBL128 current consumption in Alarm ( activated ) state:
TA CA RA
I = I + I
TN
Comments regarding (I
TN
I 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.).
167
EBL128 Planning Instructions V2.0.x
Time: HH:MM
):
159
The
160
in normal
161
in
160
in alarm state.
162
in