TEXIO LSG SERIES, Instruction Manual

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4-1-2. External Voltage Control - Overview
Background External voltage control of the CC, CR, CV and
CP mode is accomplished using the J1
connector on the rear panel. An input voltage of
0~10V corresponds to 0% ~ 100% of the rated
current (CC mode), rated voltage (CV mode), or
rated power (CP mode). For CR mode, 0V ~ 10V
corresponds to the maximum resistance ~
minimum resistance.
Connection When connecting the external voltage source to
the J1 connector, use a ferrite core and use
twisted pair wiring.
LSG EXT-V
J1
connector
＋
－
3
1
Input
Terminals
Ferrite Core and
twisted wiring
Pin1 → EXT-V (+)
Pin3 → EXT-V (-)
Note
The input impedance for external voltage control
is 10kΩ.
Use a stable voltage supply for the external
voltage control.
Caution
When using external voltage control, make sure
no more than ±11V is applied across pins 1 and
3. Exceeding this voltage could damage the LSG
Series.
Exceeding 11.8V will cause an EXT.OV alarm
message to appear which also will reset the
voltage output to 0V until the external voltage is
reduced back down below 11.8V.
Use caution when using pin 3. Pin 3 is directly
coupled to the negative input terminal.
4-1-3. External Voltage Control
– Operation
Description External voltage control can be used to control the
current, voltage, resistance and power for CC, CR,
CV and CP modes. Configuration for each
operating mode is the same.