MR MSENSE VAM, Руководство по эксплуатации

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7 Commissioning
Maschinenfabrik Reinhausen GmbH 2021 73 6796573/02 EN MSENSE
®
VAM
7.7.1 Checking measured values and status of digital inputs and
outputs
Upon commissioning the device, check whether the measured values and
status of digital inputs and outputs are plausible. To do so, use an additional
measuring device if necessary in order to check the individual measured val-
ues.
To display the status of the digital inputs and outputs, proceed as follows:
1. Go to Information > Hardware .
2. Select the individual assemblies one after another and check the individ-
ual measured values or the status of digital inputs and outputs.
3. If errors arise, check the measurement path and the wiring.
7.7.2 Performing function tests
To ensure that the monitoring system functions seamlessly, you have to
check the communication with the sensor and the automatic triggering func-
tion after each installation or maintenance action as follows:
1. Check that the wiring of the sensor and the signal feedback is in accor-
dance with the supplied circuit diagram.
2. Perform a few on-load tap-changes for all positions and in both directions
and check the plausibility of the signal progression including the envelope
curve in the monitoring system.
3. Check that the signals are being recorded and saved correctly.
4. Optional: Check the control system.
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The monitoring system is ready to function.
7.7.3 Electrical high-voltage tests on the transformer
It is essential that you ensure only trained, instructed expert personnel who
are familiar with and comply with the pertinent safety and technical regula-
tions, who are aware of the potential risks, and who consistently use the oc-
cupational safety equipment provided to prevent injury and property damage
are assigned to perform such a transformer test.
Note the following points before performing high voltage tests on the trans-
former:
▪ Check that the ground connections on the control cabinet and the control
cabinet fixings are free of paint.
▪ Only perform a high voltage test with the control cabinet door closed.
▪ Disconnect the sensor cable and other external connections to electronic
components in the control cabinet to prevent damage through overvolt-
age.
▪ When connecting the control cabinet's supply voltage, only use the bush-
ings in the protective housing base intended for lead insertion.
▪ Guide all ground connecting leads to one central connection point (estab-
lishment of suitable reference earth).