FPSS1U TDK Corporation, FPSS1U Datasheet - Page 15

• Manufacturer Part Number: FPSS1U
• Description: RACK 3 SLOT FOR FPS1000
• Manufacturer: TDK Corporation
• Series: FPSr

Specifications of FPSS1U

• Accessory Type: Rack System
• No. Of Slots: 3
• Peak Reflow Compatible (260 C): No
• External Width: 19.00"
• Rack U Height: 1
• External Depth: 13.82"
• For Use With: 285-1239 - PWR SUP FNT END 48V 1008W 21A285-1238 - PWR SUP FNT END 32V 992W 31A285-1237 - PWR SUP FNT END 24V 960W 40A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: FPS1000 Series
• Lead Free Status / Rohs Status: RoHS Compliant part
• Other names: 285-1240

4.8 DC_OK signal
An open collector output provides a low output voltage detection signal. The open collector output is on when the
output voltage is higher than 80%+/-5% of the rated output voltage of the power supply.
The open collector output is referenced to the Signals_Return potential and is isolated from the power supply +V
and -V terminals
The maximum sink current is 10mA and the maximum external voltage is 15V.
Refer to Fig 4-3 for typical application.
4.9 AC_Fail signal
An open collector output provides a low AC input voltage detection signal. The open collector output is on when the
input voltage is 85Vac or higher.
The open collector output is referenced to the Signals_Return potential and is isolated from the power supply +V
and -V terminals
The maximum sink current is 10mA and the maximum external voltage is 15V.
Refer to Fig 4-4 for typical application.
4.10 Remote On/Off control
A Remote On/Off control input is provided. The Remote On/Off input is isolated from the power supply +V and -V
terminals and is referenced to the Signals_Return potential. The Remote On/Off can be operated either by electrical
signal or by dry contact.
(1) Operation by electrical signal:
The maximum sink current is 2.6mA and the maximum external voltage is 15V.
(2) Operation by dry contact (relay or switch):
When the Remote On/Off function is not used, connect a short circuit between the On/Off control and the Signals_Return.
Refer to Fig 4-5 for the remote On/Off circuit description:
Fig 4-3
Fig 4-4
Fig 4-5
0~0.6V: Output is On.
2~15V: Output is Off.
Short between On/Off input and Signals Return: Output is On.
Open circuit between On/Off input and Signals Return: Output is Off.
FPS1000
FPS1000
FPS1000
4.7KΩ
16 12V aux
10
16 12V aux
11
10
16 12V aux
10
9
7
AC_Fail signal
DC_OK
Signals return
Signals return
On/Off control
Signals return
12
10KΩ
10KΩ
I source 2.6mA max, 15Vdc max.