RUPS848T
RACK POWER
7
3.2. Technical output.
The power supply is fitted with the
ALARM
output of collective failure (relay type). A collective failure can
be triggered by the following events:
- 230V AC mains power failure
- Activation of the glass fuse
- Failure of the switch mode power supply
- Too high temperature of the switch mode power supply (>70
°C)
- Low battery voltage (<46V)
Fig. 4. Electrical diagram of the ALARM collective output of failure.
CAUTION!
In Fig.4 the set of contacts shows a potential-free status of the relay, which
corresponds to power supply failure.
3.3. Acoustic indication.
A collective failure is indicated by the piezoelectric indicator, 1 beep every second. The acoustic indication
can be turned off by changing the ON / OFF position of the switch .
switch in the up position, indication ON
switch in the down position, indication OFF
4. Operation and use.
4.1. Overload or short circuit of the PSU output.
The
AUX1 ÷ AUX8 power supply outputs are protected against short-circuit with glass fuses. If a fuse-
assisted protection has been chosen, replace the fuse (of the same parameters) in case of a failure.
4.2. Battery-assisted operation.
In case of a main power outage, the device is immediately switched into a battery-assisted operation.
The PSU is equipped with the discharged battery disconnection system. During
the battery-assisted operation, reducing voltage below 38V at the battery terminals will
cause battery disconnection.
4.3. Maintenance.
Any and all maintenance operations may be performed following the disconnection of the PSU from the
power supply network. The PSU does not require performing any specific maintenance measures. In case of fuse
replacement, use a replacement of the same parameters.
