Operating instructions

4.5. Danfoss FC Control Profile
4.5.1. Control Word under Instances 100/150 and 101/151
To select FC protocol in the control word, par.
8-10
Control Word Profile must be set to FC
protocol [0]. The control word is used to send
commands from a master (PLC or PC) to a
slave (frequency converter).
The control word in Instances 100/101 is de-
fined as follows to the right:
Bit Bit value = 0 Bit value = 1
00 Reference value External selection lsb
01 Reference value External selection msb
02 DC brake Ramp
03 Coasting No coasting
04 Quick stop Ramp
05 Hold output frequency Use ramp
06 Ramp stop Start
07 No function Reset
08 No function Jog
09 Ramp 1 Ramp 2
10 Data invalid Data valid
11 No function Relay 01 active
12 No function Relay 04 active
13 Parameter set-up Selection lsb
14 Parameter set-up Selection msb
15 No function Reverse
Explanation of the Control Bits:
Bits 00/01
Bits 00 and 01 are used to choose between the four reference values, which are pre-programmed
in par. 3-10
Preset Reference according to the table to the right:
Pro-
gram-
med ref.
value
Param-
eter
Bit 01 Bit 00
1 3-10 [0] 0 0
2 3-10 [1] 0 1
3 3-10 [2] 1 0
4 3-10 [3] 1 1
NB!
In par. 8-56
Preset Reference Select a selection is made to define how Bit 00/01
gates with the corresponding function on the digital inputs.
4. How to Control the Frequency Converter FC 100/ 200/ 300 DeviceNet
32 MG.33.D3.02 - VLT
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