76
MG.30.A7.02 - VLT
®
is a registered Danfoss trademark
Groups
The function of bit 04 can be redefined to
D.C. brake in parameter 514. Otherwise
the function is as described above. Note: In
parameter 504/505 it is selected how bit 04
is connected (gates) with the equivalent
function on the digital inputs.
Bit 05, Hold/ramp possible:
Ordinary ramp stop which uses the ramp
time in parameter 215/216. Bit 05 = “0”
means stop, bit 05 = ”1” means that the
frequency converter can start if the other
start conditions are fulfilled.
Bit 06, Ramp stop/start:
Ordinary ramp stop which uses the ramp
time in parameter 215/216. Bit 06 = “0”
means stop, bit 06 = “1” means that the
frequency converter can start if the other
start conditions are fulfilled. Note: In para-
meter 506 it is selected how bit 06 is con-
nected (gates) with the equivalent function
on the digital inputs.
Bit 07, No function/reset:
Reset of trip. Bit 07 = “0” means no reset,
bit 07 = “1” means reset of a trip. Note: In
parameter 508 it is selected how bit 07 is
connected (gates) with the equivalent
function on the digital inputs.
Bit 08, JOG 1 OFF/ON:
Activation of preprogrammed speed in
parameter 511 (Bus JOG 1). JOG 1 is only
possible when bit 04 = “0” and bit 00-03
= “1”.
Bit 09, JOG 2 OFF/ON:
Activation of preprogrammed speed in
parameter 512 (Bus JOG 2). JOG 2 is only
possible when bit 04 = “0” and bit 00-03 =
“1”. If both JOG 1 and JOG 2 are activated
(bit 08 and 09 = “1”), JOG has highest prio-
rity, i.e. the speed programmed in parame-
ter 511 is used.
Bit 10, Data not valid/valid:
Used to tell the VLT
®
frequency converter
whether the control word must be used or
ignored. Bit 10 = “0” means that the control
word is ignored. Bit 10 = “1” means that the
control word is used. This function is rel-
evant because the control word is always
contained in the telegram, no matter which
telegram type is used (see byte 4 in ”tel-
egram format”), i.e. it is possible to discon-
nect the control word if it is not to be used
in connection with updating or reading of
parameters.
Bit 11, No function/slow down:
Used to reduce the speed reference with
the value in parameter 513. Bit 11 = “0”
means no change of reference, bit 11 = “1”
means that the reference is reduced. The
function of bit 11 and 12 can be rede-fined
to selection of digital reference in param-
eter 515, according to the following table:
Serial data interface,
group 5..
(continued)
Digital reference/
parameter
Bit 14
Bit 13
1/205
0
0
2/206
0
1
3/207
1
0
4/208
1
1
Note: In parameter 510 it is selected how
bit 11/12 is connected (gates) with the
equivalent function on the digital inputs.
Bit 12, no function/catch up:
Used to increase a speed reference with
the value in parameter 513. Bit 12 = ”0”
gives no chance of reference, bit 12 = ”1”
increases the reference. If both slow-down
and catch-up are activated (bit 11 and 12 =
”1”), slow-down has highest priority,
i.e. the speed reference is reduced. The
function of bit 11 and 12 can be redifined to
selection of digital reference, see
description of bit 11 above.
Bit 13/14, selection of setup:
Bit 13 and 14 are used to select between
four menu setups according to the follow-
ing table:
Setup
Bit 14
Bit 13
1
0
0
2
0
1
3
1
0
4
1
1
The function is only possible when
multi
setup is selected in parameter 001.
Note: In parameter 509 it is selected how
bit 13/14 are connected (gates) with the
equivalent function on the digital
inputs.
