Danfoss FC 300 Profibus User Manual

FC 300 Profibus
How to Control the FC 300
 Danfoss FC Control Pro file
 Control Word according to FC Profile (CTW)
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).
Please refer to Application Examples for an example of a control word telegram using PPO type 3.
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
B
its 00/01 Reference value
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 following table:
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.
Pro-
grammed
ref. value
Parameter 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
Bit 02, DC brake
Bit 02 = “0” leads to DC braking an d stop. Braking current and duration are set in par. 2-01 DC Brake current
and 2-02 DC Braking time. Bit 02 = “1” leads to ramping.
35
MG.33.C2.02 - VLT is a registered Danfoss trademark

Danfoss FC 300 Profibus Specifications

General

Brand	Danfoss
Model	FC 300 Profibus
Category	DC Drives
Language	English