heinzinger ERS Compact Series, Руководство пользователя, Страница: 74 / 114

Heinzinger electronic GmbH
Phone: +49 (0) 8031 2458 0 www.heinzinger.com
Anton-Jakob-Str. 4, 83026 Rosenheim Fax: + 49 (0) 8031 2458 58 info@heinzinger.de
Germany
Page 74
ERS COMPACT
• Remote control has not been activated
In this mode of operation pin REM-SB can serve as lock, preventing the DC terminal from being switched on by
any means. This results in following possible situations:
DC
terminal
+
Level on
pin „REM-
SB“
+
Parameter
„REM-SB
Level“

Behavior
is off
+
HIGH +
Normal

The DC terminal isn’t locked. It can be switched on by pushbutton
“On/Off” (front panel) or via command from digital interface.
LOW
+
Inverted
+
HIGH
+
Inverted

The DC terminal is locked. It can’t be switched on by pushbutton
“On/Off” (front panel) or via command from digital interface. When
trying to switch on, a pop-up in the display resp. an error message
will be generated.
LOW
+
Normal
In case the DC terminal is already switched on, toggling the pin will switch the DC terminal off, similar to what it
does in analog remote control:
DC
terminal
+
Level on
pin „REM-
SB“
+
Parameter
„Rem-SB
level“

Behavior
is on
+
HIGH +
Normal

The DC terminal remains on, nothing is locked. It can be switched
on or off by pushbutton or digital command.
LOW
+
Inverted
+
HIGH
+
Inverted

The DC terminal will be switched off and locked. Later it can be
switched on again by toggling the pin. During lock, pushbutton
or digital command can delete the request to switch on by pin.
LOW
+
Normal
b) Remote control of current and power
Requires remote control to be activated (Pin REMOTE = LOW)
The set values PSEL and CSEL are generated from, for example,
the reference voltage VREF, using potentiometers for each. Hence
the power supply can selectively work in current limiting or power
limiting mode. According to the specification of max. 5 mA load for
the VREF output, potentiometers of at least 10 kΩ must be used.
The voltage set value VSEL is directly connected to VREF and
will thus be permanently 100%. This also means that the device
can only work in source mode.
If the control voltage is fed in from an external source it’s neces-
sary to consider the input voltage ranges for set values (0...5 V
oder 0...10 V).
When using the voltage range 0...5 V the
effective resolution of set values and actual
values halves.
Example with external
voltage source
Example with
potentiometers
c) Reading actual values
The AI provides the DC terminal values as current and voltage monitor. These can be
read using a standard multimeter or similar.