FNP1500 Datasheet, PDF (6/15 Pages) Power-One – 1500 to 5400-Watt Front-End Power Solutions

FNP1500/1800 and FXP1500/1800 Front-Ends
& FNR-3 and FXR-3 Power Shelves Data Sheet
Protection
Parameter
Input fuse
Inrush current limitation
Output
Overvoltage protection latching¹
Overtemperature protection
1 _{Remove input voltage to reset.}
Conditions/Description
Not user accessible
Tracking
Absolute
Automatic power shutdown at T_C
Min
Nom
Max
Unit
25A, fast blow
With NTCs
No-load -, short circuit - and overload proof
115
122 % V_{o nom}
59.5
V
95
°C
Control
Specification is valid for input voltage, load, and temperature ranges, unless otherwise stated.
Parameter
Conditions/Description
Status Indication
I²C digital bus
LEDs: DC OK (green), AC OK (green); fan fail and overtemperature (amber)
Monitors alarm functions and sets parameters
PS present pin
Contact closure to logic ground ( internal pull-down resistor of 1 kΩ)
PS remote shutdown / Inhibit pin
Power supply OK (I²C)*
DC current fail (I²C)*
AC fail / Power down warning
(I²C & OC)*
DC fail / Output voltage fault
(I²C & OC)*
Temperature warning (I²C & OC)¹
TTL compatible signal, inhibited when open contact, high or at TTL logic “1”
Signal referenced to logic return (LRTN)
AC OK & DC OK & no overcurrent & no overtemperature & fans working
Overcurrent on I_o1
Provides a warning that the input power has failed at least 5 ms before the
output falls out of regulation (<90% V_{o1 set}).
Open collector signal with 20 mA pull-down capability, referenced to logic
return (LRTN). AC fail will go high or open during power fail condition
and will go low when input is within the operating range. A Power Fail
warning will turn off the green AC OK LED.
Internal undervoltage and overvoltage supervision of V_o1. Open collector signal with 20
mA pull-down capability, referenced to logic return (LRTN). DC fail will go high or open if
V_o1 is < 90% or > 110% of V_{o1 set}, measured in front of the ORing FETs. A green LED on
the front panel indicates normal operation. The LED will flash if in parallel operation V_o1 is
ok, but the unit is disabled.
I²C critical temperature warning: Indicates that the operating temperature
has reached [T_shut-down – 10K]
I²C & OC overtemperature warning: Indicates if the unit is in overtemperature
shutdown. Open collector signal with 20 mA pull-down capability, referenced
to logic return (LRTN). The OC-output will go low 100 ms before an over-
temperature condition shuts down the unit. An amber LED on the front panel
indicates overtemperature or fan fail.
DC voltage monitoring (I²C)¹
DC current monitoring (I²C)¹
DC voltage trimming
(I²C or external resistor)¹
Monitors the voltage V_o1 at the output connector.
Accuracy ± 0.45 V over setting range, temperature and load.
Monitors the output current I_o1 : Accuracy ± 0.4A over the load range.
Output voltage trimming V_o1: ± 8 % of V_{o set}
Setting accuracy over I²C: ± 50mV at Vo nom, ± 150 mV over setting range
Fan speed control (I²C)¹
Fan OK (I²C & OC)¹
Two fan speed levels automatically set depending on the internal temperature.
The fan speed can be set to full speed or automatic control.
Indicates if the fans are operating or have failed.
Synch. startup pin
Overcurrent signal which can be used for synchronous startup of units in parallel or to
recover from an overload condition. (See application note).
1 _{Provided over the I}2_{C interface or as an open collector signal on the output connector (OC).}
For detailed Information on I²C, please see document “FNP1500-I2C-controlling.pdf” or use the Power-One I²C Management Interface
document.
DEC 12, 2006 revised to FEB 22, 2007
Page 6 of 15
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