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Control word / status word
The bits of the "Control word" tell the VLT how to
react, while the "Status word" bit status will tell the
master the condition of the VLT.
According to PROFIDRIVE control word (para. 512=0)
Bit
Bit = 0
00 (LSB)
OFF 1
01
OFF 2
02
OFF 3
03
Motor coasting
04
Quick-stop
05
Freeze output frequency Ramp enable
06
Ramp stop
07
No function
08
Jog 1 OFF
09
Jog 2 OFF
10
Data not valid
11
No function
12
No function
13
Setup select
14
15 (MSB) No function
The FC motor Series Design Guide (MG.03.BX.02) and the VLT 2800 Series Design Guide (MG.28.EX.02) holds a
detailed description of the control word.
According to PROFIDRIVE control word (para. 512=0)
Bit
Bit = 0
00 (LSB)
Control not ready
01
VLT not ready
02
Motor coasting
03
No fault
04
ON 2
05
ON 3
06
Start enable
07
No warning
Speed ≠ ref.
08
09
10
Out of range
11
Not running
12
13
Voltage OK
14
Torque OK
15 (MSB) No thermal warning
The FC motor Series Design Guide (MG.03.BX.02) and the VLT 2800 Series Design Guide (MG.28.EX.02 ) holds a
detailed description of the status word.
22
FCM 300 PROFIBUS / VLT 2800 PROFIBUS
Control word
The control words are used to send control
commands to the frequency converter when the
telegram is sent from the master.
Control word
Bit = 1
ON 1
ON 2
ON 3
Enable
Ramp
Start
Reset
ON
ON
Valid
Slow down
Catch-up
Reversing
Status word
When the frequency converter returns the frame to
the master, the same two bytes operate as status
from the frequency converter with the following
functions:
Status word
Bit = 1
Ready
Ready
Enable
Trip
OFF 2
OFF 3
Start disable
Warning
Speed = ref.
Frequency OK
Running
Limit
Limit
Thermal warning
According to VLT standard (para. 512=1)
Bit = 0
Preset reference
DC brake
Coasting
Quick-stop
Freeze output
Ramp stop
No function
No function
Data not valid
No function
No function
Setup select
No function
According to VLT standard (para. 512=1)
Bit = 0
VLT not ready
Coasting
No fault
R e s e r v e d
R e s e r v e d
R e s e r v e d
No warning
Speed ≠ ref.
Out of range
Not running
Voltage OK
Current OK
No thermal warning
MG.90.A2.02 – VLT is a registered Danfoss trademark
Bit = 1
Ramp
Enable
Ramp
Ramp enable
Start
Reset
Jog
Valid
Reversing
Bit = 1
Ready
Enable
Trip
Warning
Speed = ref.
Frequency OK
Running
Above limit
Above limit
Thermal warning
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