RUPS824P
RACK POWER
3
CONTENTS:
1. Technical description.
1.1. General description
1.2. Block diagram
1.3. Description of PSU components and connectors
1.4. Specifications
2. Installation.
2.1. Requirements
2.2. Installation procedure
3. Operating status indication.
3.1. LED indication
3.2. Technical output
3.3. Acoustic indication
4. Operation and use.
4.1. Overload or short circuit of the PSU output
4.2. Battery-assisted operation
4.3. Maintenance
1. Technical description.
1.1. General description.
The buffer power supply
RUPS824P
is used for uninterrupted supply of devices requiring stabilized voltage
of
24V DC (+/- 15%).
The PSU supplies voltage of
U=27,6V
DC
and total current capacity of:
Output current 8A + 1A battery charge.
Total device c battery: 9A max.
In case of power decay, a battery back-up is activated immediately. The PSU is fitted with 8 outputs
protected independently with polymer fuses PTC 1A. The power supply is fitted with the ALARM output of collective
failure. In case of failure, relay contacts are switched automatically, which is accompanied by acoustic and optical
indication (the corresponding led goes on). The power supply construction is based on the switch mode PSU with
high energy efficiency and is located in an enclosure adapted for mounting in standard
RACK
19
” cabinets.
1.2. Block diagram.
Fig.1. The block diagram of the PSU.
1.3. Description of PSU components and connectors.
Table 1. Elements the front power of the power supply unit.
Element no.
[Fig. 2]
Description
AC
OK
– green LED, indicating the presence of 230V voltage
DC
OK
– green LED, indicating the presence of DC voltage
TEMP
– red LED, indicating too high temperature of the power supply (>70°C)
LoB
– red LED, indicating too low battery voltage (<23V)
LED ALARM
– red LED failure indication
