VLT
®
Series 3500
88
The function of bit 04 can be redefined to DC braking in pa-
rameter 514; otherwise the function is as described. Note:
In parameter 504 and 505 a choice is made as to how bit
04 is combined with the corresponding function on the digi-
tal inputs.
Bit 05,
HOLD/RAMP ENABLED:
Ordinary ramp stop using the ramp time in parameter 216.
Bit 05 = “0” leads to a stop; bit 05 = “1” means that the drive
is able to start if the other conditions for doing so have been
fulfilled.
Bit 06,
RAMP STOP/START:
Ordinary ramp stop using the ramp time in parameter 216.
Bit 06 = “0” causes a stop; bit 06 = “1” means that the drive
is able to start if the other conditions for doing so have been
fulfilled. Note: In parameter 506 a choice is made as to how
bit 06 is combined with the corresponding function on the
digital inputs.
Bit 07,
NO FUNCTION/RESET:
Reset of trip. Bit 07 = “0” causes no reset; bit 07 = “1”
means that a trip is reset. Note: In parameter 508 a choice
is made as to how bit 07 is combined with the correspond-
ing function on the digital inputs.
Bit 08,
JOG 1 OFF/ON:
Activation of the pre-programmed 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 the pre-programmed 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 (bits
08 and 09 = “1”), JOG 1 has the higher priority, i.e. the
speed programmed in parameter 511 is used.
Bit 10,
DATA NOT VALID/VALID:
Used for telling the drive whether the control word is to 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 relevant because the control word is always
contained in the message, no matter what type of message
is being used (see byte 4), i.e. it is possible to disregard the
control word if it is not to be used in connection with updat-
ing or reading of parameters.
Bit 11,
NO FUNCTION/SLOW DOWN:
Used for reducing the speed reference by the value of pa-
rameter 513.
Bit 11 = “0” means that the reference is not changed.
Bit 11 = “1” means that the reference is reduced. The func-
tion of bits 11 and 12 can be redefined to be the choice of
digital reference in parameter 515, in accordance with the
following table:
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 a choice is made of how bit 1/12
is combined with the corresponding function on the
digital inputs.
Bit 12,
NO FUNCTION/CATCH-UP:
Used to increase the speed reference by the value of pa-
rameter 513. Bit 12 = “0” means that the reference is not
changed; bit 12 = “1” means that the reference is increased.
If both slow-down and catch-up are activated (bits 11 and
12 = “1”), slow-down has the higher priority, i.e. that the
speed reference is reduced. The function of bits 11 and 12
can be redefined to become the choice of digital reference;
see the description of bit 11 in the above.
Bit 13/14,
CHOICE OF SETUP:
Bits 13 and 14 are used for choosing between the four
menu setups, in accordance with the following table:
Setup Bit 14 Bit 13
100
201
310
411
This function is only enabled if
Multi setups
have been se-
lected in parameter 001.
NOTE:
In parameter 509 a choice is made of how bit 13/14
is combined with the corresponding function on the
digital inputs.
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