FC 300 Profibus
How to Control the FC 300
Control Profile
The FC 300 can be controlled according to the PROFIdrive profile, or the Danfoss FC profile. Select the desired
control profile in par. 8-10
Control word profile
. The choice of profile affects the control and status word only.
The
PROFIdrive control profile
and
Danfoss FC control profile
sections provide a detailed description of
control and status data.
PROFIdrive Control Profile
This section describes the functionality of the control word and status word in the PROFIdrive profile. Select
this profile by setting par. 8-10
Control word profile to PROFIdrive
.
Control Word according to PROFIdrive Profile
(CTW)
The Control word is used to send commands from
a master (e.g. a PC) to a slave.
Bit
Bit = 0
Bit = 1
00
OFF 1
ON 1
01
OFF 2
ON 2
02
OFF 3
ON 3
03
Coasting
No coasting
04
Quick stop
Ramp
05
Hold frequency
output
Use ramp
06
Ramp stop
Start
07
No function
Reset
08
Jog 1 OFF
Jog 1 ON
09
Jog 2 OFF
Jog 2 ON
10
Data invalid
Data valid
11
No function
Slow down
12
No function
Catch up
13
Parameter set-up
Selection lsb
14
Parameter set-up
Selection msb
15
No function
Reverse
Explanation of the Control Bits
Bit 00, OFF 1/ON 1
Normal ramp stop using the ramp times of the actual selected ramp.
Bit 00 = "0" leads to the stop and activation of the output relay 1 or 2 if the output frequency is 0 Hz and if
[Relay 123] has been selected in par. 5-40
Function relay
.
When bit 00 = "1", the frequency converter is in State 1: “Switching on inhibited”.
Please refer to the PROFIdrive State Transition Diagram, at the end of this section.
Bit 01, OFF 2/ON 2
Coasting stop
When bit 01 = "0", a coasting stop and activation of the output relay 1 or 2 occurs if the output frequency is
0 Hz and if [Relay 123] has been selected in par. 5-40
Function relay
.
When bit 01 = "1", the frequency converter is in State 1: “Switching on inhibited”. Please refer to the
PROFIdrive State Transition Diagram, at the end of this section.
Bit 02, OFF 3/ON 3
Quick stop using the ramp time of par. 3-81
Quick stop ramp time
. When bit 02 = "0", a quick stop and
activation of the output relay 1 or 2 occurs if the output frequency is 0 Hz and if [Relay 123] has been
selected in par. 5-40
Function relay
.
When bit 02 = "1", the frequency converter is in State 1: “Switching on inhibited”.
Please refer to the PROFIdrive State Transition Diagram, at the end of this section.
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MG.33.C2.02 - VLT is a registered Danfoss trademark