Examples For The Analogue Interface - Elektro-Automatik PS 800 R series Handbuch

Handling the device
5.5 Examples for the analogue interface
Remotely switching output on / off
Digital input (DI): REM-SB
The input can be used to switch off the device output
at any time. After this, switching it on again is only
possible by releasing the contact or switch.
• The contact/switch on pin 8 overrides the pushbut-
ton „On/Off".
• Switching to remote control by pin 7 is not re-
quired.
• During remote control, this input REM-SB is also
used to acknowledge and delete the OVP error by
pulling the pin to LOW (=off).
Monitoring voltage and current
Analogue outputs (AO): VMON and CMON
The analogue monitoring outputs put out 0...10V, which
corresponds to 0...100% of the nominal values.
Reference is analogue ground (AGND).
18
Adjust set values 1
Analogue inputs (AI): VSEL and CSEL
This example shows how the set values can be ad-
justed using the reference voltage (10V, VREF) and
potentiometers on the set value inputs.
The bridge between pin 10 and Pin 7 switches the de-
vice to the required remote control mode. This bridge
can be substituted by a low resistive switch.
In case only one of both set values shall be adjusted,
the other one should be tied to pin VREF.
The potentiometer should be 10kOhm each or hig-
her.
Adjust set values 2
Analogue inputs (AI): VSEL and CSEL
© 2006, Elektro-Automatik GmbH & Co. KG
The example shows how to control voltage and cur-
Irrtümer und Änderungen vorbehalten
rent by means of external voltage sources. Also see
example 1.
Attention! Never connect voltages >12V to these
inputs!
Set values >10V are internally clipped to 100% no-
minal value.
© 2010, Elektro-Automatik GmbH & Co. KG
EN