© EPS Stromversorgung in 2022, this information is subject to change without notice
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30000800_manual_psb_10000_4u_30kw_en_04
• 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 gener-
ated.
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 necessary
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.