For a three-phase measurement according to connection type 3P4W (four conductors,
unbalanced load, without voltage transformers, with three current transformers), accuracy
class 1, primary rated current 100 A, secondary rated current 1A, three window-type
transformers are recommended (4NC5117-0CC20).
Note
When measuring the complete machine, it is recommended that the current is sensed directly
after the main switch. For the voltage tap, please observe the usual protection/fusing.
References
Information on the installation, configuration and operation of the Power Monitoring Device
and the expansion module can be found in the following references:
● SENTRON PAC3200 Power Monitoring Device Manual
(Document order number A5E01168664A-05)
● SENTRON PAC4200 Power Monitoring Device System Manual
(Document order number A5E02316180A-03)
● PAC PROFIBUS DP, SWITCHED ETHERNET PROFINET Expansion Module Manual
(document order number A5E01168846A-06)
3.1.2 Commissioning the Power Monitoring Device
A detailed description of commissioning of the SENTRON PAC Power Monitoring Device is
provided in the corresponding manuals.
Preconditions
● The device has been installed.
● The optional expansion modules have been installed.
● The device has been connected in accordance with the possible connection methods.
● The battery has been inserted into the battery compartment (only for the SENTRON
PAC4200).
General procedure when commissioning the device
● Connected the supply voltage
● Parameterizing SENTRON PAC
● Connect the measuring voltage
● Connect the current to be measured
● Check the displayed measured values
● Check the polarity and phase assignment of the measuring transducer
Ctrl-E Analysis
3.1 SENTRON PAC3200/4200
Ctrl-Energy
System Manual, 01/2015, 6FC5397-0EP40-5BA2 13
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