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PSBEN2024B
BLACK POWER
22
5.5 Technical outputs.
The PSU feature indication outputs, with galvanic isolation, which change their state if any of the following
events occur:
EPS FLT - output indicating 230 V power loss
.
The output indicates 230 V power loss. Under normal status (with 230 V supply on) the
output is closed. In case of power failure, the PSU will switch the output into the open position after a
time lag set by the
T
AC
jumpers (J1, J2).
J1=
, J2=
time lag T= 5s
J1=
, J2=
time lag T= 140s
J1=
, J2=
time lag T= 17m
J1=
, J2=
time lag T= 2h 20m
Caption:
jumper on,
jumper off
APS FLT - output indicating battery failure.
The output indicates a failure in the battery circuit. Under normal status (during correct operation) the
output is close. In case of a failure the PSU will switch the output into the open state. Any failures can be
triggered by the following events:
- a faulty or undercharged battery
- battery voltage below 23 V during battery-assisted operation
- battery fuse failure
- no continuity in the battery circuit
PSU FLT - output indicating PSU failure
.
The output indicates the PSU failure. Under normal status (during correct operation) the output is close.
In case of a failure the PSU will switch the output into the open state. Any failures can be triggered by the
following events:
- low output voltage Uaux<23,6 V
- high output voltage Uaux>29,4 V
- high battery voltage Uaku>28 V (during battery test)
- polymer fuse PTC activation
- exceeding the PSU nominal current
- failure in the battery charging circuit
- activation of the over voltage protection OVP
- enclosure opening - TAMPER
- internal damage of the PSU
- EXT IN input activation
The technical outputs have been implemented with galvanic isolation between the P
SU’s systems and the
attached devices.
Fig. 8. Electrical diagram of the technical outputs.
5.6 Input of collective failure EXT IN.
The EXT IN (external input) technical input indicating a collective failure is intended for additional, external
devices that generate the failure signal. The voltage at the EXT IN input will save information about an incident in
the internal memory of the power supply and sending the signal about the failure to the PSU FLT output.
The EXT IN technical input has been impl
emented with galvanic isolation between the PSU’s systems
and the devices attached.
Fig. 9. Electrical diagram of the EXT IN input.
