9 Fault elimination
94 5831400/02 EN
This chapter describes how to eliminate operating faults.
If a solution for a fault cannot be found, contact the manufacturer:
Maschinenfabrik Reinhausen GmbH
MR Service & Complaint
Falkensteinstrasse 8
93059 Regensburg
Germany
E-mail: service@reinhausen.com
E-mail: complaint@reinhausen.com
Please have the following data ready:
▪ Serial number
▪ Software version
Questionnaire for preparation
1. Has there previously been a problem with this device?
2. Have you previously contacted Maschinenfabrik Reinhausen GmbH about
this issue? If yes, then who was the contact?
3. When did the error first occur? Is there a correlation with events such as
thunderstorms, lightning surge testing in the transformer station, trans-
former disconnection/reconnection after short circuit or ground fault, etc.?
4. Is the error constant or sporadic? Is there a correlation with other events/
conditions, such as extreme ambient temperatures?
5. Is there an error in the transmission of the 4...20mA analog signal or in
the Modbus transmission?
– Are you using shielded lines?
– Are you using a twisted pair line?
– Is the cable shielding attached on both sides?
– What is the cable length?
– Which receiver do you use as a receiver?
– 4…20mA analog signal: What is the load resistance?
– Modbus: Are there other devices on the Modbus?
– Type TTM: Please tell us the value of the status register.
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