MR MSENSE VAM, Operating Instructions Manual

Page: 74 / 174

7 Commissioning
Maschinenfabrik Reinhausen GmbH 2021 74 6796573/02 EN MSENSE
®
VAM
▪ Disconnect all electronic components before the high voltage test. Before
a dielectric test of the wiring, remove all devices with a withstand voltage
of < 1000 V.
▪ Remove leads used for testing before the high voltage test, because
these function as antennas.
▪ Wherever possible, route the measurement leads and data leads sepa-
rately to the energy cables.
7.7.4 Ground test
For commissioning, carry out a ground test (check of the impedance of the
protective bonding) in accordance with IEC 61010-1. Note the following in-
formation:
▪ Test current: 2 times the measurement current of the overcurrent protec-
tion device of the supply line.
▪ Test duration: 1 minute for each measurement point.
▪ The measured voltage between the measurement point and the protective
conductor must be smaller than 10 V.
Proceed as follows to carry out the ground test:
1. Feed the test current at the fixing screw of assembly DIO 28-15 or DIO
42-20 using a constant current source and measure the voltage between
the measurement point and the protective conductor.
ð
The measured voltage must remain less than 10 V over a duration of 1
minute.
Figure 53: Perform a ground test on the DIO assembly (sample representation of the DIO 28-15
assembly).