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FPS-T1U
FPS-1000 Module A
FPS-1000 Module B
FPS-1000 Module C
J1(A)-12
J3(C)-3
ON/
OFF_1
A
J2(B)-12
J2(B)-3
ON/
OFF_1
B
J3(C)-12
J1(A)-3
ON/
OFF_1
C
LOAD
+V
+S
-S
-V
+S
-S
+V
+S
-S
-V
+S
-S
+S
-S
+V
+S
-S
-V
+S
-S
+V
-V
CS
CS
CS
J1(C)-10 J1(B)-10 J1(A)-10
CHAPTER 20 PARALLEL AND SERIES OPERATION
20.1 Parallel operation
Up to 3 x FPS-T1U racks with up to 8 x FPS1000 installed units of the same output voltage rating can be connected
in parallel. The built-in Oring diodes on the main output and on the +12V auxiliary voltage in each FPS1000 unit
allow N+1 operation. By connecting the CS signal between the paralleled units, automatic current balance is achieved,
with +/-10% accuracy. For input voltages less than 100Vac, maximum output Power derated by 10% of the Power
rating. Refer to Fig 20-1 for output Power derating in parallel operation.
20.1.1 Parallel operation with Remote sensing
Fig 20-2 shows typical connection of parallel operation with Remote sensing. The CS signal wires should be as short
aspossible and with the same length.
90
100
100
265
Input voltage
(Vrms)
% of rated Power
85
Fig 20-2 Parallel operation with Remote sensing
FPS-T1U Instruction Manual
Fig 20-1