4-14
PAN-A
4.3.2 Controlling output voltage with external voltage
This method is used to control output voltage using 0 V to approx. 10
V.
• The insulation of the external voltage source (Vext)
and the cable connecting to it should be greater than
the isolation voltage of the unit. For details on the iso-
lation voltage of each model, see Chapter 7 "Speci
cations". In addition, leave the output of the external
voltage source (Vext)
fl
oating. For details, see
• When using shielded wires for connection, protect
the uncovered section of the shielded wire by using
insulation tubes with a withstand voltage higher than
the isolation voltage of the unit.
• Never attempt to carry out wiring to the control termi-
nals with the POWER switch turned ON. Otherwise,
electric shock or failure of the internal circuit may be
caused, and may result in improper operations.
• When controlling the unit using an external voltage source
which has a quick rising time relative to the capacitive load,
the phase control circuit of the unit cannot respond to the
external voltage, which may cause AC components to be
superimposed on the rising waveform.
Connection and setup procedure
1. Turn off the OUTPUT switch.
2. Turn off the POWER switch.
3. Turn the VOLTAGE control knob fully clockwise.
• For output voltage control with an external voltage, you can
use the VOLTAGE control knob to adjust the ratio of the out-
put voltage to the input voltage from the external voltage
source (Vext). (See Fig.4-11.)
Therefore, keep the control knob turned fully clockwise so
that output voltage can be remotely controlled, up to the rated
WARNING
NOTE
NOTE
Summary of Contents for PAN 110-1.5A
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