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PROFIBUS-DP External Communication Cards
POWERXL SERIES VFD MN040010EN—June 2018 www.eaton.com
Control word and status word
The Control Word and Status Word used when in Bypass
mode using one of the 4 modules will follow the layout
used in Modbus for the CW, SW, Ref Speed, ACT Speed,
and FB Data points.
Control word
PowerXL Series drive uses 16 bits as shown below.
Thesebits are application specific.
Table 103. Binary bits and corresponding outputs
1514131211109876543210
FB Ref FB Ctrl BYS FB DIN 4 FB DIN 3 FB DIN 2 FB DIN 1 F_RST DIR RUN
The bit is not used.
FB general control word
The drive does not use the FB General Control Word. The
main control word is used to provide commands to the drive.
FB control word
Bit
Description
value = 0 Value = 1
0 Drive Output Off Drive Output On
1 Clockwise Rotation Counter Clockwise
2 No Reset Fault Reset
3 FB INDATA1 Off FB INDATA1 On
4 FB INDATA2 Off FB INDATA2 On
5 FB INDATA3 Off FB INDATA3 On
6 FB INDATA4 Off FB INDATA4 On
7 Bypass Relay Disable Bypass Relay Enable
8 FB Control Off FB Control On
9 FB Reference Off FB Reference On
10–15 Not in use Not in use
Speed reference
1514131211109876543210
MSB——————————————LSB
This is the Reference 1 to the VFD. Used normally as Speed
reference.
The scaling on this value is 0–100.00% of the Maximum
Frequency (P1.2). The 0 to 100.00% is represented by 0 to
10,000 value indicating 0 or 0% as Minimum Frequency
(P1.1) and 10,000 or %100.00 as Maximum Frequency
(P1.2). This value has 2 decimal places in it.
Process data in 1 to 8
Process Data In values 1 to 8 can be used in applications for
various purposes.
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