FPS-T1U Instruction Manual
CHAPTER 19 BASIC CONNECTIONS FOR OPERATION FPS-T1U RACK
19.1 Connecting Single Load, Remote Sensing
Remote sensing is used in cases where the load regulation is important at the load terminals. Use twisted
or shielded wires to minimize noise pick-up. If shielded wires are used, the shield should be connected
to the ground at one point, either the power supply side or the load. The optimal point for the shield ground
should be determined by experimentation. Refer to the power supply specifications for the maximum
voltage drop allowed at the load wires.
Load line. Up to 1V drop.
FPS-T1U
FPS-1000 Module A
+V
+S
-S
J1-8
J1-7
+V
LOAD
-V
+V
-V
+V
FPS-1000 Module B
+S
-S
-V
J2-8
J2-7
-V
LOAD
FPS-1000 Module C
ON/ ON/ ON/
OFF_1 OFF_1 OFF_1
A B C
+V
+S
-S
-V
J3-8
J3-7
+V
-V
LOAD
Sense lines
Twisted pairs
Load line.
Up to 1V drop.
Fig 19-1: Remote sensing, three load.
* In Local sense applications, the +/- sense have to be connected to the
+/-Local Sense terminals of the FPS-T1U prior to operating the FPS1000 units plugged in.
19.2 On/Off control
Fig 19-2 and Fig 19.3 shows typical connection for individual On/Off control of each installed FPS1000 unit.
ON/OFF Control_1
ON/OFF Control_2
FPS-T1U
J1(A)-12
FPS-T1U
J1(A)-4
FPS-1000 Module A
ON
OFF
FPS-1000 Module A
OFF
ON
J1(A)-3
J2(B)-12
J1(A)-3
J2(B)-4
FPS-1000 Module B
ON
OFF
FPS-1000 Module B
OFF
ON
J2(B)-3
J2(B)-3
J3(C)-12
FPS-1000 Module C
J3(C)-4
FPS-1000 Module C
ON
J3(C)-3
OFF
ON/ ON/ ON/ ON/ ON/ ON/
OFF OFF1 OFF OFF1 OFF OFF1
SLCT A SLCT B SLCT C
OFF
J3(C)-3
ON
Fig 19-2
Connection for negative logic:
Closed: On Open: Off
Factory default: ON/OFF Control_1
47
Connection for positive logic:
Closed: Off Open: On
Fig 19-3
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