GFR1K5 Datasheet, PDF (16/29 Pages) XP Power Limited – 1U Blind-Mate Hotswap Redundant

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Table 23
Characteristic
Signals & Control
AC OK
DC OK
Inhibit
Enable
Fault
Current Share
Current Monitor
I²C
5V Standby (V2)
Notes & Conditions
Up to 4 separate AC OK signals, one per installed power supply - AC OK is an opto isolated transistor referenced to logic ground
providing a minimum of 3 ms warning of loss of output regulation. The signal is fully isolated and the collector and emitter must
be connected externally. The transistor is normally on when AC is healthy. See fig. 6 & 16.
Up to 4 separate DC OK signals, one per installed power supply - DC OK is an opto isolated transistor referenced to logic
ground providing warning of loss of output. The signal is fully isolated and the collector and emitter must be connected
externally. The transistor is normally on when output DC is healthy. See fig. 7 & 16.
Up to 4 separate Inhibit inputs, one per installed power supply - Floating isolated optocoupler diode referenced to logic ground
powered diode inhibits the supply. See fig. 8 & 17.
The Enable pin is an integral rack connection and is the last to mate and holds the power supply off until the unit is fully plugged
in. No external customer connection.
Up to 4 separate Fault signals, one per installed power supply - Fault is an opto floating isolated transistor referenced to logic
ground providing warning of output voltage below 90% of nominal, fan fault or overtemperature. The signal is fully isolated and
the collector and emitter must be connected externally. The transistor is normally on when there is no fault. See fig. 9.
The current share connection of each installed power supply are parallel connected within the rack and referenced to logic
ground. This connection is also available as a customer connection to parallel up to 2 racks. Units share current within 10% of
each other at full load. Derate output to 90% of total combined load. See fig. 12 & 15.
Enables the monitoring of supplied current from V1 output of each installed power supply. See fig. 11.
The I²C PMBus compatible interface can be used for monitoring the unit output voltage, current, internal temperature and run
time. It can also be utilized to turn the unit on and off, detect faults along with identification of the unit model number and serial
number. A separate application note is available detailing the use of this interface, contact sales for further information.
5 V / up to 4 A (up to 0.4 A when POE board installed) supply, always present when AC supplied.
Environmental
Table 24
Characteristic
Operating Temperature
Storage Temperature
Warm up time
Cooling
Humidity
Operating Altitude
Shock
Vibration
Minimum
-20
-40
5
Typical
20
Maximum
+70
+85
95
3000
Units
şC
şC
Minutes
CFM
%RH
m
Notes & Conditions
Derate linearly from +50 şC at 2.5%/şC
to 50% at 70 şC. See fig. 22.
2 integral fans per power supply.
Non-condensing
3 x 30 g/11 ms shocks in both +ve & -ve
directions along the 3 orthogonal axis,
total 18 shocks.
Single axis 10-500 Hz at 2 g x 10 sweeps
Temperature Derating Curves
Per installed power supply
Figure 22
1600
1400
1200
GFR1K5PS24, 48, 56 > 180 VAC Input
1000
800
GFR1K5PS12
& GFR1K5PS24, 48, 56 < 180 VAC Input
600
400
-20
0
20
40
60
80
Ambient (ºC)
16
10011388 revision B