Argantix KDC 100-100, User Manual

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User Manual
58 KDC Series II DC Power Supplies
5 Operating Modes
5.1 External Programming Modes
Units are shipped from the factory configured for local voltage/current control and local voltage
sensing. In this mode, all controls and operation are performed from the front panel of the unit.
This mode is covered by chapter 4. The external input signal operating modes and multi unit
configurations described in this chapter require the presence of the analog interface option board.
(Option
–IF).
Note: When using external programming modes, always use shielded and or
twisted pair signal wires to minimize noise pick up. Keep control wires
away from possible RF noise sources as much as possible.
Note: When using the 10V RPV or RPI inputs, it may be necessary to ground the
5V RPV or 5V RPI inputs to avoid noise pickup on these unused inputs.
5.1.1 Remote Voltage Programming
For applications that require the output voltage be programmed (controlled) from a remote source
, the remote voltage programming configuration may be used. In this mode of operation, an
external resistor or external voltage source may be used as a programming device. When using
remote voltage programming, a shielded, twisted-pair, connection wire is recommended to reduce
noise interference on programming signals.
1. External Voltage Programming Using a 5 VDC or 10 VDC Voltage Source. A DC voltage
source for remote voltage programming is connected between pin 3 (V PROG 5V) or PIN 4 (V
PROG 10V) and the return terminal PIN 14 (ISO COM). To program voltage slightly above
the rated output will not damage the unit, but degraded performance may result. Figure 5-1
for connection requirements.
From the CONTROL menu, set the VOLTAGE REF to EXT5V or EXT10V.
1
8
9
15
ANALOG I/O
VPROG 5V 3
VPROG 10V 4
14 ISO COM
0 - 10 VDC
VOLTAGE
SOURCE
0 - 5 VDC
VOLTAGE
SOURCE
Figure 5-1: Remote Voltage Programming Using 0-5 or 0-10 VDC Source