VLT
®
5000 INTERBUS
MG.10.O1.02 VLT is a registered Danfoss trademark
23
Control word under VLT standard (parameter 512 =
FC Drive)
The control word is used for sending commands
from a master (e.g. a PC) to a slave (VLT 5000
Series).
Master
➝
Slave
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit
no.
Bit
Bit = 0
Bit = 1
00
Preset reference choice lsb
01
Preset reference choice msb
02
DC brake
Ramp
03
Coasting
Enable
04
Quick-stop
Ramp
05
Hold
Ramp
enable
06
Ramp stop
Start
07
No function
Reset
08
No function
Jog
09
Ramp 1
Ramp 2
10
Data not valid
Valid
11
No function
Relay 01
activated
12
No function
Relay 04
activated
13
Choice of Setup lsb
14
Choice of Setup msb
15
No function
Reversing
Bit 00/01:
Bits 00 and 01 are used for choosing among the
four pre-programmed references (parameters 215-
218) in accordance with the following table:
Preset ref.
Parameter
Bit 01
Bit 00
1
215
0
0
2
216
0
1
3
217
1
0
4
218
1
1
NB!
Parameter 508 is where to choose the
way bits 1/12 are to be combined (gated)
with the corresponding function on the
digital inputs.
Bit 02, DC BRAKE:
Bit 02 = "0" leads to DC braking and stop. Braking
current and duration are set in parameters 125 and
126. Bit 02 = "1" leads to
ramping
.
Bit 03, Coasting/enable:
Coasting stop. Bit 03 = "0" leads to a stop. Bit 03 =
"1" means that the frequency converter is able to
stop, provided the other conditions for starting are
fullfilled. Note: In parameter 502 the choice is made
as to how bit 03 is to be combined (gated) with the
corresponding function in the digital inputs.
Bit 04, Quick-stop/ramp:
Quick-stop which uses the ramp time in parameter
212. Bit 04 = "0" leads to a quick-stop. Bit 04 = "1"
means that the frequency converter is able to start,
provided the other conditions for starting are fulfilled.
Note: In parameter 503 the choice is made as to
how bit 04 is to be combined (gated) with the
corresponding function on the digital inputs.
Bit 05, Freeze output frequency/ramp enable:
Bit 05 = "0" means that the given output frequency is
maintained even if the reference is changed.
Bit 05 = "1" means that the frequency
converter is again able to regulate, and the
given reference is followed.
Bit 06, Ramp stop/start:
An ordinary ramp stop that uses the ramp time in
parameters 207/208 or 209/210; in addition, output
relay 01 or 04 will be activated when the output
frequency is 0 Hz, provided
Relay 123
has been
selected in parameter 323 or 326. Bit 06 = "0" leads
to a stop. Bit 06 = "1" means that the frequency
converter is able to start, provided the other
conditions for starting are fulfilled. Note: In
parameter 505 the choice is made as to how bit 06
is to be combined (gated) with the corresponding
function on the digital inputs.
Bit 07, No function/reset
Reset of trip. Bit 07 = "0" means that there is no
reset. Bit 07 = "1" means that a trip is reset.
Bit 08, Activation of Jog speed in parameter 213:
Bit 08 = "0": Jog speed not activated. Bit 08 = "1"
means that the motor is running at Jog speed.
Bit 09, Choice of ramp 1/2:
Bit 09 = "0" means that ramp 1 is active
(parameters 207/208). Bit 09 = "1" means that
ramp 2 (parameters 209/210) is active.
Bus
reference
Control
word
FC Pr
ofile
