Danfoss VLT AutomationDrive Design Manual page 272

RS-485 Installation and Set...
11.12.4 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
00 OFF 1
01 OFF 2
02 OFF 3
03 Coasting
04 Quick stop
05 Hold frequency output
06 Ramp stop
07 No function
08 Jog 1 OFF
09 Jog 2 OFF
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
Bit 00, OFF 1/ON 1
Normal ramp stops 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 0Hz and if [Relay
123] has been selected in 5-40 Function Relay.
When bit 00 = "1", the frequency converter is in State 1:
"Switching on inhibited".
Please refer to , 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 0Hz
and if [Relay 123] has been selected in 5-40 Function Relay.
When bit 01 = "1", the frequency converter is in State 1:
"Switching on inhibited". Please refer to , at the end of this
section.
Bit 02, OFF 3/ON 3
Quick stop using the ramp time of 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 0Hz
and if [Relay 123] has been selected in 5-40 Function Relay.
When bit 02 = "1", the frequency converter is in State 1:
"Switching on inhibited".
Please refer to , at the end of this section.
Bit 03, Coasting/No coasting
FC 300 Design Guide
Coasting stop Bit 03 = "0" leads to a stop. When bit 03 =
"1", the frequency converter can start if the other start
conditions are satisfied.
NOTE
The selection in 8-50 Coasting Select determines how bit 03
Bit = 1 is linked with the corresponding function of the digital
inputs.
ON 1
ON 2
ON 3 Bit 04, Quick stop/Ramp
Quick stop using the ramp time of 3-81 Quick Stop Ramp
No coasting
Time.
Ramp
When bit 04 = "0", a quick stop occurs.
Use ramp
When bit 04 = "1", the frequency converter can start if the
Start
other start conditions are satisfied.
Reset
Jog 1 ON
NOTE
Jog 2 ON
The selection in 8-51 Quick Stop Select determines how bit
Data valid
04 is linked with the corresponding function of the digital
Slow down
inputs.
Catch up
Selection lsb
Bit 05, Hold frequency output/Use ramp
Selection msb
When bit 05 = "0", the current output frequency is being
Reverse
maintained even if the reference value is modified.
When bit 05 = "1", the frequency converter can perform its
regulating function again; operation occurs according to
the respective reference value.
Bit 06, Ramp stop/Start
Normal ramp stop using the ramp times of the actual
ramp as selected. In addition, activation of the output relay
01 or 04 if the output frequency is 0Hz if Relay 123 has
been selected in 5-40 Function Relay. Bit 06 = "0" leads to a
stop. When bit 06 = "1", the frequency converter can start
if the other start conditions are satisfied.
NOTE
The selection in 8-53 Start Select determines how bit 06 is
linked with the corresponding function of the digital
inputs.
Bit 07, No function/Reset
Reset after switching off.
Acknowledges event in fault buffer.
When bit 07 = "0", no reset occurs.
When there is a slope change of bit 07 to "1", a reset
occurs after switching off.
Bit 08, Jog 1 OFF/ON
Activation of the pre-programmed speed in 8-90 Bus Jog 1
Speed. JOG 1 is only possible if bit 04 = "0" and bit 00 - 03
= "1".
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MG.33.BD.02 - VLT is a registered Danfoss trademark
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