FPSS1U TDK Corporation, FPSS1U Datasheet - Page 38

• 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

13.1.2 Output voltage trimming at parallel operation
The output voltage of the units connected in parallel can be made by a single trimmer or resistive divider.
13.1.3 Signal Return bus at parallel operation
The Signal Return of each paralleled FPS-S1U rack can be connected together to form a common Signal Return
bus. By this way, the control and monitoring signals of the paralleled racks can be connected to the same control
and monitoring circuitry. The Signal Return bus can be connected to the -V or -S or +V or -S or float. Fig 13-4 shows
typical connection of the Signal Return at parallel operation.
Fig 13-4: Signal Return connection at parallel operation
FPS-S1U #1
FPS-S1U #2
FPS-S1U #3
FPS-S1U # 1
FPS-S1U # 2
FPS-S1U # 3
9
9
9
9
CS
CS
CS
OVER-TEMP
OVER-TEMP
OVER-TEMP
SIG.
RTN
SIG.
RTN
11
11
11
SIG.
RTN
11
SIG.
RETURN
SIG.
RETURN
SIG.
RETURN
AC_FAIL
AC_FAIL
AC_FAIL
DC_OK
DC_OK
DC_OK
ALARM
ALARM
ALARM
5
5
5
OFF
OFF
ON/
ON/
A
A
A
OFF
ON/
15
15
15
Fig 13-3: Output voltage trimming at parallel operation
OFF
OFF
ON/
ON/
B
B
B
OFF
11
ON/
11
11
V_TRIM
A, B, C
V_TRIM
A, B, C
V_TRIM
A, B, C
25
25
25
OFF
OFF
ON/
ON/
OFF
C
ON/
C
C
+S
+S
+S
-S
-S
-S
10
10
10
7
1
7
1
7
1
V_TRIM
V_TRIM
V_TRIM
+V
-V
CONTROL AND
MONITORING CIRCUITS
FPS-S1U #1 SIGNALS
FPS-S1U #2 SIGNALS
FPS-S1U #3 SIGNALS
SIGNALS RETURN
V_TRIM
35
V_TRIM
+S
-S
R
R
1
2
FPS-S1U with FPS1000-12 installed:
R2=0.0324*V
R1(K Ω )=5(K Ω )-R2(K Ω )
FPS-S1U with FPS1000-24 installed:
R2=0.0785*V
R1(K Ω )=20(K Ω )-R2(K Ω )
FPS-S1U with FPS1000-32 installed:
R2=0.0463*V
FPS-S1U with FPS1000-48 installed:
R2=0.0497*V
R1(K Ω )=50(K Ω )-R2(K Ω )
R1(K Ω )=20(K Ω )-R2(K Ω Ω)
FPS-S1U Instruction Manual
2
2
2
2
out
out
out
out
-7.2795*V
-1.1298*V
-5.819*V
-4.5805*V
out
out
out
out
+105.132
+259.04
+9.9342
+109.49