Danfoss Fc Control Profile - Danfoss VLT AQUA Drive 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 Control
Bit Bit value = 0
00 Reference value
01 Reference value
02 DC brake
03 Coasting
04 Quick stop
05 Hold output frequency
06 Ramp stop
07 No function
7
08 No function
09 Ramp 1
10 Data invalid
11 No function
12 No function
13 Parameter set-up
14 Parameter set-up
15 No function
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
table:
Programmed ref. value
1
2
3
4
NB!
Make a selection in par. 8-56 Preset
inputs.
Bit 02, DC brake:
Bit 02 = '0' leads to DC braking and stop. Set braking current and duration in par. 2-01 DC
leads to ramping.
168
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
Par.
Reference
par. 3-10 Preset [0]
par. 3-10 Preset Reference [1]
Reference
par. 3-10 Preset [2]
Reference
par. 3-10 Preset [3]
Reference Select
to define how Bit 00/01 gates with the corresponding function on the digital
®
MG.20.N4.02 - VLT is a registered Danfoss trademark
®
VLT
Profile
= FC profile)
Reference
Bit 01 Bit 00
0 0
0 1
1 0
1 1
Brake Current and par. 2-02 DC
AQUA Drive Design Guide
according to the following
Braking Time . Bit 02 = '1'