PROFIBUS DP communication module
9.10 Data formats and data sets
3RW44 soft starters
Manual, 03/2017, NEB535219502000/RS-AB/008
183
Statistics data of the maximum pointer
Maximum pointers are used for preventive diagnostics:
● The maximum measured value is stored in the device.
● The higher-level PLC can retrieve the measured value at any time.
● The higher-level PLC can reset the measured value at any time.
The following data is available as a maximum pointer:
● Number of overload trips.
● Phase current I
L1max
to I
L3max
and I
L1min
to I
L3min
. Maximum and minimum phase current as
a percentage [%] of set current I
e
and in amperes [A]
Data format: 1 byte each, 8-bit current format
Both the measured maximum and minimum phase currents in bypass operation are
stored per phase.
● Minimum and maximum phase-to-phase voltages U
Lx
- U
Ly
as RMS values in 0.1 V.
Minimum and maximum line frequency in 0.5 Hz resolution.
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