7 Serial interface (Modbus RTU)
7.3 Operating mode Modbus RTU
148 DC1 Frequency Inverter 10/12 MN04020003Z-EN www.eaton.com
Control word (ID 1)
These bits are used to control the DC1 frequency inverter. You can modify
the content as required for your own specific application and then send it as
a control word to the frequency inverter.
Field bus speed reference value (ID 2)
The permissible values fall within a range of 0 to P-01 (max. frequency).
This value will be scaled with a factor of 0.1 in the application.
Bit Description
Value = 0 Value = 1
0 Stop Operation
1 Clockwise rotating field (FWD) Anticlockwise rotating field (REV)
2 No action Reset error
3 No action Free coasting
4 Not used
5 Not used
6
No action Block setpoint value (speed not variable)
7 No action Overwrite setpoint value with 0
8 Not used
9 Not used
10 Not used
11 Not used
12 Not used
13 Not used
14 Not used
15 Not used
1514131211109876543210
MSB LSB
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