Elektro-Automatik PS 800 R Series, Руководство по эксплуатации

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EN
23
Date: 06-22-2018
Instruction Manual
PS 800 R Series
Handling the device
5. Operation
5.1 Powering the device
The device does not feature a power switch. When
connecting it to mains, it is immediately ready to
work.
After switching mains off, the device stores the last
state (selected mode, output condition) in order to
restore it automatically with the next start. Thus
it can continue to work after an interruption like a
blackout etc.
5.2 Adjusting the output voltage
The nominal output voltage is seperated into three
selectable voltage ranges, each approximately 1/3 of
the nominal voltage. For details see the „4. Technical
specifications“ .
The built-in trimmer „Output adjust“ is a 10-turn type
and the approximate 10 rotations from left stop to
right stop correspond to the selected range.
The device has no voltage or current display and
thus an external measuring device has to be used
when adjusting the output voltage.
Note: if the output is not loaded when adjusting
the output voltage down, the voltage may only sink
slowly. It is advised to adjust only with slow rotations
or wait after each turn for the voltage to settle.
5.3 Switching output on or off
The pushbutton „Output On/Off“ is used to switch the
power output on or off, if not inhibited by any error
(OVP or OT) or the device being in remote control.
The voltage set by the trimmer will then be put out
immediately.
The output can also be switched off at any time via
pin 8 „Rem-SB“ of the analogue interface and then
on again.
Attention!
The pin REM-SB overrides the pushbut-
ton „Output On/Off“.
When the output is switched on, the LED „CC“ will
indicate constant current operation (LED is on) or
constant voltage operation (LED is off).
Caution! When swiching the output off with no
load or only small load connected, there will still be
voltage at the output. Voltage sinking down to 0V
can take up to 60s, depending on the power supply
model. Dangerous voltage still present!
5.4 Selecting a voltage range
The pushbutton „Output Voltage Range“ is used to
select one of the three voltage ranges. In order to
select one, the power output has to be switched off
first. Selecting a different range and subsequently
switching the output on again will immediately set
the output voltage that corresponds to the position
of the trimmer within the select range.
Attention! The output voltage can hereupon rise
up to dangerous levels which can damage the
connected load.
6. Remote control
Set values can be put in externally via the pins VSEL
(voltage set values) and CSEL (current set value)
and with analogue voltages of 0...10V.
The power output values are put out as monitor
signals VMON (actual voltage) and CMON (actual
current) in a range of 0...10V.
In order to control the set values remotely, remote
control has to be activated first. This is done by
pulling pin 7 „Remote“ to low (bridge, relais, low
resistive switch, open collector transistor).
It is always necessary to put in both, voltage and
current set values. If required, one of the set values
can be bridged to the 10V reference pin VREF and
will thus be 100%.
Remote control is indicated by the LED „External“.
For pin assigment of the analogue interface see
table below.