Danfoss Fc Control Profile - Danfoss VLT Series Design Manual

7. RS-485 Installation and Set-up

7.11. Danfoss FC Control Profile

7.11.1. Control Word According to FC Profile(Par. 8-10 = FC profile)
Bit
00
01
02
03
7
04
05
06
07
08
09
10
11
12
13
14
15
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
Programmed ref. value
1
2
3
4
Bit 02, DC brake:
Bit 02 = '0' leads to DC braking and stop. Set braking current and duration in par. 2-01
Current
146
Bit value = 0
Reference value
Reference value
DC brake
Coasting
Quick stop
Hold output frequency
Ramp stop
No function
No function
Ramp 1
Data invalid
No function
No function
Parameter set-up
Parameter set-up
No function
Preset reference according to the following table:
Par.
3-10 [0]
3-10 [1]
3-10 [2]
3-10 [3]
NB!
Make a selection in par. 8-56
Preset Reference Select
fine how Bit 00/01 gates with
the corresponding function on
the digital inputs.
DC Braking Time
and 2-02 . Bit 02 = '1' leads to ramping.
MG.11.B2.02 - VLT
Bit value = 1
external selection lsb
external selection msb
Ramp
No coasting
Ramp
use ramp
Start
Reset
Jog
Ramp 2
Data valid
Relay 01 active
Relay 02 active
selection lsb
selection msb
Reverse
Bit 01
0
0
1
1
to de-
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VLT HVAC Drive Design Guide
Bit 00
0
1
0
1
DC Brake