Danfoss VLT 3002 User Manual

75MG.30.A7.02 - VLT
®
is a registered Danfoss trademark
According to the data format, 1 byte
consists of 8 data bits, but in the control
word only the 4 least significant bits of
each byte are used, so that ASCII charac-
ters from A to 0 can be used. The table
below shows the significance of the indi-
vidual bits of the control word:
Control words, bytes 5-8 in the telegram
The control word is used to send control
commands from a master (e.g. a PC) to
the VLT
®
frequency converter.
Serial data interface,
group 5.. (continued)
Groups
Bit 00, OFF1/ON1:
Ordinary ramp stop which uses the ramp
time in parameter 215/216. Bit 00 = “0”
means stop, bit 00 = “1” means that the
frequency converter can start if the other
start conditions are fulfilled.
Bit 01, OFF2/ON2:
Free-wheeling stop. Bit 01 = “0” means
free-wheeling stop, bit 01 = “1” means that
the frequency converter can start if the
other start conditions are fulfilled.
Bit 02, OFF3/ON3:
Quick stop, which uses the ramp time in
parameter 218. Bit 02 = “0” means quick
stop, bit 02 = “1” means that the frequency
converter can start if the other start condi-
tions are fulfilled.
Bit 03, Free-wheeling/possible:
Free-wheeling stop. Bit 03 = “0” means
stop, bit 03 = “1” means that the frequency
converter can start if the other start condi-
tions are fulfilled. Note: In parameter 503 it
is selected how bit 03 is connected (gates)
with the equivalent function on the digital
inputs.
Bit 04, Quick stop/ramp:
Quick stop, which uses the ramp time in
parameter 218. Bit 04 = “0” means quick
stop, bit 04 = “1” means that the frequency
converter can start if the other start condi-
tions are fulfilled.
@
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
ASCII
0
/
1
X = Dont care, if P is used in a group of 4 bits, current status is retained. Only the groups with the characters in P are
activated. Bit 10 = 0 signifies no change from current status.
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
0000000000000000
0001000100010001
0010001000100010
0011001100110011
0100010001000100
0101010101010101
0110011001100110
0111011101110111
1000100010001000
1001100110011001
1010101010101010
1011101110111011
1100110011001100
1101110111011101
1110111011101110
1111111111111111
XXXXXXXXXXXXXXXX
Byte 8 Byte 7 Byte 6 Byte 5
N
O
F
U
C
T
T
I
O
N
/
R
E
V
E
R
S
I
N
G
S
E
L
E
C
T
S
E
T
-
U
P
1
N
O
F
U
C
T
T
I
O
N
/
C
A
T
C
H
-
U
P
N
O
F
U
C
T
T
I
O
N
/
S
L
O
W
D
O
W
N
D
A
T
A
N
O
T
V
A
L
I
D
/
V
A
L
I
D
J
O
G
2
O
F
F
/
O
N
J
O
G
1
O
F
F
/
O
N
N
O
F
U
C
T
T
I
O
N
/
R
E
S
E
T
R
A
M
P
S
T
O
P
/
S
T
A
R
T
H
O
L
D
R
A
M
P
P
O
S
S
I
B
L
E
Q
U
I
C
K
S
T
O
P
R
A
M
P
F
R
E
E
W
H
E
E
L
P
O
S
S.
O
F
F
3
/
O
N
3
O
F
F
2
/
O
N
2
O
F
F
1
/
O
N
1
Control word
S
E
L
E
C
T
S
E
T
-
U
P
2
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Danfoss VLT 3002 Specifications

General

Brand	Danfoss
Model	VLT 3002
Category	Media Converter
Language	English