62
EN
Operating Guide
PSI 8000 2U Series
Date: 28-06-2012
Using the power supply
Output off
Pin „REM-SB“ is always operative and does not depend on the
remote mode („
extern
“). It can thus be used to switch off the
output without extra means. Exception: if LOCAL mode was
activated by the user (see section 6.9). Then the control signals
on the analog interface are completely ignored.
The user has to ensure that the level of this input is held con-
stant.
Note
A digital output of, for example, a PLC may not be able to per-
form the action correctly, because it might not be low-resistive
enough. Therefore: always check the technical specifications
of your external control application.
Remote control of current and voltage
Note
Remote control via analog interface always requires to put
in all set values!
Two potentiometers between VREF and ground, sliders at the
inputs VSEL and CSEL. The power supply can be controlled
as with the rotary knobs on the front and can either operate as
current or voltage source. In compliance with the max. 3mA for
the VREF output, potentiometers with at least 10kOhm have
to be used.
The power set value is here, for models with power regulation
feature, tied to VREF and thus 100%.
or
Remote control with power (where available)
Similiar to the example above, but with adjustable power limit.
Power adjustment only works at models from 1000W, which
feature power regulation.
