Danfoss VLT Series Design Manual page 160

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
160
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]
NOTE
Make a selection in par. 8-56
Preset Reference Select
to de-
fine how Bit 00/01 gates with
the corresponding function on
the digital inputs.
MG.11.B4.22 - 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
® is a registered Danfoss trademark.
VLT ® HVAC Drive Design Guide
Bit 00
0
1
0
1