User manual ZSP135-DR
0404.00.95-05.4 23/36
No backup
voltage on both
outputs in case of
a mains power
failure
−
battery fuse (3)
−
connection of the batteries (the battery not
connected or connected incorrectly)
−
state of the batteries
*1)
The device
indicates a fault
when the mains
power is present
and output
voltages are
correct
−
quality of the connections of the batteries
*2)
−
state of the batteries
*2)
The device
indicates the
battery mode
when the utility
power is present
−
mains power fuses (1,2)
−
state of the mains power
−
a serious malfunction
– call the service
The device
indicates a fault
by the relay
BAT
FLT
during the
battery mode
−
the battery bank is nearly discharged (battery
voltage below 22 V). If the power failure
continues the battery bank will be
disconnected
The device
indicates a fault
by the blinking
diode
−
external fault
−
an unauthorized person has opened the door
(optional)
−
no jumper on
INT FLT
connector
Only the
MAINS
LED diode on the
power supply is
on after turning on
the mains
−
short-circuit on one of the outputs
*1)
If the battery voltage is < 21.6 V the battery bank shall not be connected to the system. Batteries should be
charged by an external charger or replaced. The
FAULT
LED diode is blinking.
*2)
The indication could have been triggered during the battery test
– then red
BAT
LED is on continuously (see the
section 4.4). Having the batteries replaced or the connections corrected, the indication shall be cancelled no sooner
than after a correct run of the next test. It may last up to 10 minutes, under a condition the battery is not charged in
the bulk mode.
6. Remarks on the selection of the type of the power supply
Power supplies ZSP135-DR have various output currents and cooperate with internal batteries of
various capacities. The selection of the specific type should depend on requirements of the specific load
(powered devices).
First, one has to calculate the required battery capacity. To do this one has to take into account
consumption of current during various states of operation of the powered devices as well as additional
consumption for own needs during the mains power failure.
The minimal capacity of the battery bank can be defined with the help of the following formula:
Q
BAT
= 1.3
[(I
SB
+ I
Q
)
T
SB
+ (I
AL
+ I
Q
)
T
AL
+ I
ACT
T
3
]
where:
Q
BAT
- battery capacity [Ah]
1.3
- safety coefficient to account for capacity loss after seasoning and wear-out
I
SB
- current employed by loads during the standby [A]
I
Q
- quiescent current [A]
T
SB
- required standby time [h] (4 h, 30 h or 72 h)
I
AL
- current employed by loads during alarm [A]
T
AL
- alarm duration [h] (0.5 h)
I
ACT
- current employed by actuators during an alarm [A]
