37
Instruction Manual
PS 8000 DT Series
EN
Date: 03-05-2016
Operating the device
7.7 Remote sense operation
Remote sense operation is used to compensate voltage drops
along the leads between power supply and load. Because this
compensation is limited to a certain level, it is recommended to
match the cross section of the load leads to the output current
and thus minimise the voltage drop.
The sense input is located on the rear, at terminal
System
Bus
, where the sense leads are connected to the load with
correct polarity. The power supply will detect the external sense
automatically and compensate the output voltage by the actual
voltage at the load instead of the output. The output voltage
will be raised by the value of the voltage drop between power
supply and load. For maximum compensation see technical
specifications. Also see figure 5 below.
7.8 Mains undervoltage or overvoltage
The device features an rectification with active PFC and a wide
range input. This means, it can be operated at input voltages of
approx. 90 V...264 V. Input voltages outside this range are con-
sidered as blackout, respectively as complete switch-off and will
store the last condition, as well as switch off the power output.
Attention!
Permanent input undervoltage or overvoltage must be
avoided!
Note
Models with 1500 W nominal power will derate the output
power down to 1000 W at input voltages below approx.150 V.
7.9 Connecting different types of loads
Different types of loads, such as ohmic loads (lamp, resistor),
electronic loads or inductive loads (motor) behave differently
and can retroact to the power supply. For example, motors can
induce a counter voltage which may cause the overvoltage
protection of the power supply to shut off the output.
Electronic loads have regulator circuits for voltage, current and
power that can counteract to the ones of the power supply and
may result in increased output ripple or other, unwanted side ef-
fects. Ohmic loads are almost 100% neutral. It is recommended
to consider the load situation when planning applications.
Figure 5. Wiring the sense
