Danfoss VLT AutomationDrive FC 301 Series Design Manual page 207

RS-485 Installation and Set...
12.13.4 Control Word according to
PROFIdrive Profile (CTW)
The control word is used to send commands from a master
(for example, a PC) to a follower.
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
Table 12.24 Control Word Bits
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 0 Hz and if [Relay
123] has been selected in 5-40 Function Relay.
When bit 0="1", the adjustable frequency drive is in State
1: "Switching on inhibited".
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 5-40 Function Relay.
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 0 Hz
and if [Relay 123] has been selected in 5-40 Function Relay.
When bit 02="1", the adjustable frequency drive is in State
1: "Switching on inhibited".
Bit 03, Coasting/No coasting
Coasting stop Bit 03="0" leads to a stop.
When bit 03="1", the adjustable frequency drive can start if
the other start conditions are satisfied.
MG33BF22
Design Guide
NOTICE!
The selection in 8-50 Coasting Select determines how bit
03 is linked with the corresponding function of the
digital inputs.
Bit 04, Quick stop/Ramp
Bit=1
Quick stop using the ramp time of 3-81 Quick Stop Ramp
ON 1
Time.
ON 2
When bit 04="0", a quick stop occurs.
ON 3 When bit 04="1", the adjustable frequency drive can start if
No coasting the other start conditions are satisfied.
Ramp NOTICE!
Use ramp
The selection in 8-51 Quick Stop Select determines how
Start
bit 04 is linked with the corresponding function of the
Reset
digital inputs.
Jog 1 ON
Jog 2 ON
Bit 05, Hold frequency output/Use ramp
Data valid
When bit 05="0", the current output frequency is being
Slow-down
maintained even if the reference value is modified.
Catch up
When bit 05="1", the adjustable frequency drive can
Selection lsb
perform its regulating function again; operation occurs
Selection msb
according to the respective reference value.
Reverse
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 0 Hz if Relay 123 has
been selected in 5-40 Function Relay. Bit 06="0" leads to a
stop. When bit 06="1", the adjustable frequency drive can
start if the other start conditions are satisfied.
NOTICE!
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".
Bit 09, Jog 2 OFF/ON
Activation of the pre-programmed speed in 8-91 Bus Jog 2
Speed. JOG 2 is only possible if bit 04="0" and bit
00-03="1".
Rev. 2014-04-04 All rights reserved.
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