Ametek Sorensen XEL Serie Mode D'emploi page 22

Remote analog control of output voltage and current is possible using variable external control
voltages applied between the rear panel CV or CC and Return (RTN) inputs respectively. These
inputs are isolated from the output; the isolation rating with respect to the output is 300V max.
Inputs are protected against excess input voltages of up to 60V.
The Analog Out control voltages V
'slave' unit via the slave's CV and CC inputs respectively.
Analog Voltage Control
Remote analog voltage control is achieved by setting the rear panel CV switch to Remote and
applying a programming voltage between the inputs CV and RTN.
The front panel VOLTAGE controls are disabled when Remote is set on the CV switch. Set the
switch to Local to return control to the front panel.
The default input voltage scaling is 0V to 5V for 0 to 100% of the rated output voltage. The input
voltage scaling can be changed to be 0V to 10V by changing an internal shorting link. Disconnect
the instrument from the AC source and remove the cover as described in the Installation section.
Referring to the top view of the instrument shown in the drawing, move the tall shorting link in
position LK1 to link centre and '10V' pins instead of centre and '5V' pins.
Remote CV can be used with either Local or Remote CC.
Analog Current Control
Remote analog constant current control is achieved by setting the rear panel CC switch to Remote
and applying a programming voltage between the inputs CC and RTN. Remote analog current
control cannot be used on the low current range.
The front panel CURRENT control is disabled when Remote is set on the CC switch. Set the switch
to Local to return control to the front panel.
The default input voltage scaling is 0V to 5V for 0 to 100% of the rated maximum current (high
range only). The input voltage scaling can be changed to be 0V to 10V by changing an internal
shorting link. Disconnect the instrument from the AC source and remove the cover as described in
the Installation section. Referring to the top view of the instrument shown in the drawing, move the
tall shorting link in position LK3 to link centre and '10V' pins instead of centre and '5V' pins.
Remote CC can be used with either Local or Remote CV.
CAUTION. Do not apply external control voltages to either the CV or CC input that exceed
the maximum for the set input range (5V or 10V). The inputs are protected against excess
voltages but the instrument will attempt to supply an output voltage or current in excess of its
maximum rating if the control voltage exceeds its range limit, with possible consequential
damage. If the condition persists, OVP and/or OCP may trip the output off, see next section.
18
Remote Analog Control
(programmable models only)
and I of one unit acting as a 'master' can be used to control a
out out
LINKS SHOWN IN POSITION FOR 0-10V
SCALING FOR BOTH CV (LK1) AND CC (LK3)
PJ12
5V
VR9
VR11
10V
5V
10V
VR1