EPM 6-30-EN54
EN
7
If the battery voltage sinks below approx. 20.0 V DC in an emergency power case, the
Battery
Low
LED (yellow1) lights up as a warning.
The emergency power ends at battery voltage of approx. 18.0 V. The total discharge protection
then separates all consumer outputs from the battery.
If the battery and the battery circuit (including internal and external cell connectors and fuse) are
too high in impedance (over 0.1 Ohm), the
Battery Fail
– LED (yellow2) lights up after approx.
1 minute later when power on and the fault will be reported via the dry contact signal pin7~9, pin7,
pin8 become short circuit.
Relay Dry Contact pin assignment
Charger / AC In Fail:
1 = Normally Closed
2 = Common
3 = Normally Open
In fault condition 1-2 become open circuit.
Controller OK:
4 = Normally Closed
5 = Common
6 = Normally Open
In fault condition 4-5 become open circuit.
Battery Fail:
7 = Normally Closed
8 = Common
9 = Normally Open
In fault condition 7-8 become short circuit.
Pin assignment for Battery Temperature Sensor and Remote Battery Discharge Test
A / B = Temperature Sensor (sensor is supplied with the EPM 6-30-EN54)
C / D = Control input for Remote Battery Discharge Test
9. Important Installation Instructions
9.1 Additional items needed
To build up a complete emergency power supply – besides the battery – a set of cables and a
special battery fuse for high current has to be added. These parts have to be evaluated for
maximum current load and hence they are not in the scope of supply.
9.2 Temperature sensor
When temperature sensor is open circuit or not installed, the end-of-charge voltage will be set
automatically to 27.2V.
The temperature sensor line should be located as close as possible to the emergency power
batteries, but not mounted directly on the battery itself. Do not bring the temperature sensor into
contact with heat-dissipating components.
9.3 Self-test and Test Cycle
Upon starting up the emergency power supply with system monitoring, an automatic self-test is
carried out. The function monitoring for the battery circuit is not active until the first test cycle is
done, approx.
1 minute
after startup. A test cycle then takes place every
32 minutes
.
9.4 Remote Battery Discharge Test
In the EPM 6-30-EN54 a test function is implemented. When shorting the 2 pins of remote battery
discharge test control input (pins C/D, see above), the charging function is switched off and so the
ic audio
