Dale Power Solutions Ltd
User Manual
42
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Battery temperature sensor
A battery temperature sensor is available as an option for E400 series units. When connected the sensor
monitors and displays battery cabinet temperature, and it controls the UPS to compensate the battery
charging voltage. The sensor is connected to the MODBUS connector on the UPS (see Figure 3 on
page 14).
For further details ask you distributor for the sensor user manual.
Appendix 2 Parallel operation
The following signals are available on each UPS for parallel operation:
■ Parallel port connectors. These must be connected as described in
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■ LBS (Load Bus Synchronisation) signals. These may be used to synchronise two paralleled systems
as described below.
■ Remote emergency power off (EPO) as described below.
LBS (Load Bus Synchronisation)
It is possible to synchronise the outputs of two separate paralleled systems, where each system can
consist of up to 4 paralleled units. It is only necessary to connect UPS number 1 of each system.
To do this, connect the LBS connector of system A to the LBS connector of system B (Figure 14). The
LBS connectors are RJ11 sockets on the front panel.
Figure 14 Synchronisation of two paralleled systems