Why doesn't the input card work correctly?

FAQ #100456

Per example: Some input LED's are on even if the signal is low on the input.


After connecting some input wires the LED's are in a undefined status. Some or all LED's are on, even if the signal is low on the input.

In most cases problems like this are wiring problems. Per example L is not connected correctly.

The "L" has to be connected to the minus in source operation mode (positiv logic) and to the plus in sink operation mode (negativ logic).



PCD2 / Exxx

Last update: 11.05.2015 13:03

First release: 29.09.2005 06:56

Views: 766

The requested software / document is no longer marketed by Saia-Burgess Controls AG and without technical support. It is an older software version which can be operated only on certain now no longer commercially available products.