Danfoss VLT FC 300 Design Guide

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 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 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
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
is linked with the corresponding function of the digital
inputs.
Bit 04, Quick stop/Ramp
Quick stop using the ramp time of 3-81 Quick Stop Ramp
Time.
When bit 04 = "0", a quick stop occurs.
When bit 04 = "1", the frequency converter can start if the
other start conditions are satisfied.
NOTE
The selection in 8-51 Quick Stop Select determines how bit
04 is linked with the corresponding function of the digital
inputs.
Bit 05, Hold frequency output/Use ramp
When bit 05 = "0", the current output frequency is being
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".
RS-485 Installation and Set... FC 300 Design Guide
MG.33.BD.02 - VLT
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Danfoss VLT FC 300 Specifications

General

Brand	Danfoss
Model	VLT FC 300
Category	DC Drives
Language	English