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PSBEN101A2D/LCD
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- with ‘>’ or ‘<’ set the contrast
- approve your choice with the ‘SET’ button
3.5 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 8. 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
3.6 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 ‘EPS output lag’ facility (see 3.4.2, table 7).
•
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
- high battery voltage Uaku>14V (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
The technical outputs have been implemented with galvanic isolation between the PSU’s systems and the
attached devices.
