User Manual

Page 42
PS 9000 1U Series
www.elektroautomatik.de
[e-mail]
EA Elektro-Automatik GmbH
Helmholtzstr. 31-33 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
In case the DC output is already switched on, toggling the pin will switch the DC output off, similar to what it does
in analog remote control:
DC
output

Pin
„REM-SB“
+
Parameter
„REM-SB“

Behaviour
is on

HIGH
+
normal

DC output remains on, nothing is locked. It can be switched on
or off by pushbutton or digital command.
LOW
+
inverted

HIGH
+
inverted

DC output 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 VSEL and CSEL are generated from 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specica-
tionofmax.5mAfortheVREFoutput,potentiometersofatleast10kΩmustbeused.
The power set value PSEL is always tied to VREF and will thus be permanently 100%.
If the control voltage is fed in from an external source it is necessary to consider the input voltage ranges for set
values (0...5 V oder 0...10 V).
Use of the input voltage range 0...5 V for 0...100% set value halves the effective resolution.
Example with potentiometers Example with external voltage source
c) Reading actual values
Via the AI, the DC output values of current and voltage can be monitored. They can be read using a standard
multimeter or anything else that records analog signals.