Kikusui PAT160-25T, Operation Manual

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PAT-T 4kW
5-9
5
Ext
e
rnal C
ontr
o
l
5.4 Controlling the Output Voltage
This section explains the method used to control the output voltage using an external
voltage (Vext) in the range 0 V to approx. 10 V or an external resistor (Rext) in the
range 0 k
Ω
to approx. 10 k
Ω
.
It is about 5 ms to change the output voltage from the time when the input value of
the external voltage or external resistance were changed.
If no load is connected, it takes more time for the output voltage to fall.
Possible electric shock.
• The insulation of the Vext or Rext and the connected cable should
be greater than the isolation voltage of the PAT. For the isolation
voltage of each model, see Chapter 9, “Specifications.”
• When using shielded wires for the connection, protect the
uncovered section of the shielded wire by using insulation tubes
with a withstand voltage greater than the isolation voltage of the
PAT.
5.4.1 External Voltage (Vext) Control
p. 4-1 8
To control the output voltage using Vext, set the CV control source in the CONFIG
settings to external voltage control (CF20: 1).
The output voltage (Eo) varies in the range of 0 to the rated output voltage (Ertg) by
setting the external voltage (Vext) in the range of 0 V to 10 V.
Eo = Ertg
×
Vext /10 [V] Vext = 10
×
Eo /Ertg [V]
• The signal w ire may b u rn o u t. Leave the Vext o u tp u t floating.
• Make s u re the polarity of Vext is correct. If the polarity is reversed, the
PAT may break.
• Do not apply voltage or reverse voltage exceeding 10.5 V across the
external voltage control pins. Doing so may break the PAT.
WARNING
See
CAUTION