Eaton PowerXL Series, Communications Manual

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15
Modbus RTU On-Board Communications
POWERXL SERIES VFD MN040010EN—June 2018 www.eaton.com
Process data out 1 to 8
Process Data Out values 1 to 8 can be used in application for various purposes.
See below tables for additional information.
Process data OUT (slave master)
The fieldbus master can read the VFD actual values using process data variables.
The applications use process data as follows. These values are selectable via the
Fieldbus Process Data parameter group. These values would correspond to the
Modbus ID value. See
Appendix A for Parameter ID table showing values can be set.
Table 28. Process data OUT
Id Data Value Default value Default para Unit Scale
2104
Process Data OUT 1 -32768–32767 1 Output Frequency Hz
2105 Process Data OUT 2 -32768–32767 2 Motor Speed RPM
2106
Process Data OUT 3 -32768–32767 3 Motor Current A
2107
Process Data OUT 4 -32768–32767 4 Motor Torque %
2108 Process Data OUT 5 -32768–32767 5 Motor Power %
2109
Process Data OUT 6 -32768–32767 6 Motor Voltage V
2110
Process Data OUT 7 -32768–32767 7 DC Link Voltage V
2111
Process Data OUT 8 -32768–32767 28 Latest Fault Code —
Process data IN (master slave)
Control Word, Reference and Process Data are used with All-in-One applications as follows.
Table 29. Process data IN
ID Data Value Unit Scale
2003
Reference Speed Reference Hz 0.01
2001
Control Word — — —
2004 Process Data IN1 % 0.01%
2005
Process Data IN2 % 0.01%
2006
Process Data IN3 % 0.01%
2007 Process Data IN4 % 0.01%
2008
Process Data IN5 % 0.01%
2009
Process Data IN6 % 0.01%
2010
Process Data IN7 % 0.01%
2011 Process Data IN8 % 0.01%
ote: N
Process Data IN1 through Process Data IN8 change based off the selected application.
See Appendix B for layout.
Startup test
Select Fieldbus (Bus/Comm) as the active control and reference place.
1. Set FB control word (Modbus Address 42001) value to 301hex
2. The drive status is RUN
3. Set FB Speed reference (Modbus Address 42003) value to 5000 (= 50.00%)
4. The Actual value is 5000 and the output frequency is 50.00%
5. Set FB control word (Modbus Address 42001) value to 300hex
6. The drive status is STOP