HP PSR750-A Manual de usuario
HP PSR750-A Power Supply
User Guide
Part number: 5998-1606
Document version: 5PW100-20110311
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Contents
Introduction to the power supply····························································1
Introduction ·························································································1
Specifications······················································································3
Panel····································································································4
Status LEDs ··························································································4
Installing and removing the power supply ············································6
Precautions··························································································6
Tools ····································································································7
Installing and removing the power supply·······································7
Installing the power supply ··························································7
Removing the power supply·························································9
Connecting the power cord···························································· 10
1
Introduction to the power supply
Introduction
The PSR750-A (JC089A) is an AC-input and DC-output power supply. It
can convert the input voltage to 12 V and –54 V as required, and its
maximum output power is 750 W.
Table 1 Features supported by the PSR750-A
Feature Description
Protection
Output over-voltage protection, output
short-circuit protection, output current-limiting
protection, and overheat protection.
Redundancy
Supports parallel connection of two power
supplies, implementing 1+1 redundant current
sharing.
Hot swapping
When the device works properly, you can
power off a power supply of the 1+1
redundant power supply system and remove it
from the device.
Auto-recovery support of the PSR 750-A in the protection status is shown
in Table 2.
2
Table 2 Protection functions of the PSR 750-A
Protection function Status Auto-recovery
support
Over-voltage
protection
No power supply
with the power
supply deadly
locked
Not supported
Short-circuit
protection No power supply Supported
Current-limiting
protection No power supply Supported
Overheat protection No power supply Supported
NOTE:
•In case of short-circuit protection, over-current protection, or
overheat protection, the power supply recovers itself after the
issue is addressed.
•When a power supply is deadly locked due to over-voltage
protection, it does not support the auto-recovery function. In this
case, power off the power supply, disconnect the power cord and
connect it again, and then power on the power supply. After all
these operations, the power supply gets restored.
3
Specifications
Table 3 PSR750-A specifications
Item Specifications
Rated voltage range 100 VAC to 240 VAC; 50 Hz or
60 Hz
Max voltage range 90 VAC to 264 VAC; 47 Hz or
63 Hz
Output voltage (dual output) 12 V and –54 V
Max output current •25 A for 12 V output voltage
•9 A for –54 V output voltage
Max output power 750 W
Dimensions (H × W × D) 40.5 × 180.6 × 235 mm (1.59 ×
7.11 × 9.25 in)
Operating temperature 0°C to 55°C (32°F to 131°F)
Storage temperature –40°C to +70°C (–40°F to
+158°F)
Operating humidity 10% to 95%
Storage humidity 5% to 95%
4
Panel
Figure 1 Panel of the PSR750-A
1 2 3 4
65
7
(1) Power switch (push “O” to switch off and push “—” to switch on)
(2) AC receptacle (3) Tab
(4) Power supply handle (5) Status LED for DC output
(6) Status LED for AC input (7) Captive screw
Status LEDs
The PSR750-A has two LEDs, which indicate the input status (AC OK)
and output status (DC OK) of the power supply. Table 4 describes the
colors and working status of the LEDs in different cases.
5
Table 4 Description of the LEDs
LED Color Status
Off No power is input or an input
failure occurs.
AC OK
On The power input is normal.
Off No power is output or an output
failure occurs.
DC OK
On The power output is normal.
In normal cases, the input LED of the PSR750-A power supply turns on
while the output LED is still off after you connect the power cord but
leave the power supply in the off state; the input and output LEDs both
turn on after you power on and switch on the power supply.
However, if the input LED is on but the output LED is off, this case may be
caused by output short-circuit, output over-current, output over-voltage,
or over-temperature. To solve such cases, take the following actions:
1. Switch off the power supply and disconnect the power cord, and
then reconnect the power cord and switch on the power supply to
check whether the power supply can work properly.
2. If the above action does not work, the case may be caused by
over-temperature. Take actions to cool down the power supply,
and then it can work properly.
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