User manual ZSP135-DR
0404.00.95-05.4 20/36
Note 1
Disconnecting the battery from the load after its discharging prevents the battery from damage, but only
under a condition that the mains power failure will not last too long (e.g. several days). No battery
recharging, for long time, can cause spontaneous decrease of its voltage, preventing its automatic
connection when the mains is back.
Note 2
Please note, that the power supply itself consumes the quiescent current, which when the mains back
can lead to battery discharge, even when the loads are completely disconnected. The situation can
occur e.g. while installing the power supplies in new, not completed objects. In such the case, it is
advisable to disconnect the battery from the power supply for that time.
4.2. Input of an external fault signal
– terminals on the EXT FLT connector
The power supply can manage one binary external fault signal (in the form of the TTL 5 Vdc / 0 Vdc
signal or directly from the dry contacts of the relay (NC/NO)). To trigger this fault indication one has to
apply the logi
c “zero” or shorten the output contacts of the signal. The contact denoted by the sign “-“ is
connected to the chassis (
negative pole
OUT 1
and
OUT
2
). The
occurrence of the external fault is
indicated by the blinking LED
FAULT
in the door of the box and by the non-activated relay. If any
internal fault occurs at the same time, then the LED is on continuously. This event was assigned to the
relay
BAT FLT
.
4.3. Device to indicate the opening of the door (option) - terminals on INT FAULT connector
The power supplies ZSP135-DR optionally could be outfitted with the protection against
unauthorized access to the box interior. Opening the door (after having it unlocked) causes
disconnecting of the contacts of the sensor and triggers a fault indication
– the blinking LED
FAULT
on
the door of the cabinet and change of a state of the
BAT FLT
relay. The indication doesn’t stop when the
door is closed. To clear the indication one has to press the contact of the sensor four times within the
period not longer than three seconds. The LED
FAULT
returns then to the state before the door
opening. The indication function is reactivated automatically after the door closing.
If the power supply is not equipped in standard with a circuit as above, there is a jumper mounted
between the terminals of the
INT FLT
connector.
4.4. Indication of operation state
The ZSP135-DR power supplies have visual and remote indications of states. The indication
continues until the cause of the trigger ceases.
The visual indication consists of two LEDs located in the door of the box; the green LED is labeled
MAINS
and the yellow LED is labeled
FAULT
.
The remote indication consists of two sockets labeled
MAINS FLT
and
BAT FLT
.
All of them offer three
dry contacts, totally isolated from other circuits.
Indication of the state of operation
- continuous light
- no light
- blinking
Visual indication
Relay indication
MAINS
green
FAULT
yellow
MAINS FLT
*1)
BAT FLT
State of the device
Disconnected from the mains and batteries
Mains operations
-
Battery mode
A fault when mains power is present
or
A fault during power failure
or
*1)
The
MAINS FLT
relay responds to a power failure with 5 seconds delay.
Attention.
The symbol of the relay shown in the tables above and below corresponds to the pictogram printed on the PCB
next to the contacts of the relay. The shown state of the contacts
denotes an inactivated relay (voltage free
state).
Indication of faults
