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PSBEN2012C
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3.2 Overview of current failures.
If any incorrect electrical parameters occur, the PSU will signal the failure by illuminating an appropriate LED
on the panel or by activating an acoustic indication (provided it has not been switched off). After pressing the ‘OK’
button, the panel display will show a code of the fault that trigger the failure. If more than one failure occurs
simultaneously, another pressing the ‘OK’ button will display the next failure code.
In chapter 9 all possible failure codes that can appear during the PSU’s operation have been shown. Each
code is accompanied by an appropriate LED indication on the panel, acoustic indication and switching of a
dedicated technical output.
3.3 Overview of failure memo.
The device remembers 30 last failures in non-volatile memory which enables a subsequent overview.
Entering the failure memo overview mode:
With the “<”, “>” buttons choose the FLt position and approve by pressing “OK”. The number of the failure will be
displayed, then its code. Pressing “OK” again will display the next failure in the memory.
3.4 Acoustic indication.
Emergency situations are acoustically indicated. The frequency and the number of signals depend on an event
type (see chapter 9). The acoustic indication is off after removing an appropriate jumper (fig. 2, [5]).
Table 4. Acoustic indication.
No.
Description
Event
1
1 signal per 10s, battery-assisted operation
No 230V AC supply
2
1 signal per 10s, mains operation
Battery fault, undercharged battery
3
2 signals per 10s, battery-assisted operation
Low level of battery charge
4
Fast signals, battery-assisted operation
The PSU will be disconnected due to the battery
discharge
5
Continuous indication
PSU failure [see chapter 9]
6
1 signal
Breaking the battery test
7
2 signals
Activation of the battery test
3.5 Technical outputs.
The PSU feature indication outputs, with galvanic isolation, which change state if any of the following event
occur:
•
EPS FLT – output indicating AC power loss.
The output indicates AC power loss. Under normal status – with the 230V AC supply, the output is
close. In case of a power failure the PSU will switch the output into the open state after a period of time
determined by the T
AC
(J1, J2) jumpers.
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 11,5V during battery-assisted operation
- battery fuse fault
- 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<11,8V
- high output voltage Uaux>14,7V