Danfoss 5000 Flux Manual page 29

VLT parameters
Only the parameters (800-806 and 900, 901, 9..)
specific to the PROFIBUS are described in this
manual. For any other parameters of the VLT5000
series/VLT 5000 Flux, VLT 6000 HVAC/VLT 8000
AQUA and their functions, please refer to the VLT
5000/5000 Flux/6000 HVAC/8000 AQUA
operations manual.
Please pay special attention to the following
parameters which are not described in this
manual:
002: In the case of local operation, a control
via PROFIBUS is not possible.
502-508: Selection of how the PROFIBUS control
commands are to be linked with the
control commands of the digital inputs
of the control card.
512: Control word profile, selection of a con-
trol word according to PROFIDRIVE or
according to a control word specified by
Danfoss.
515-538: Data output parameters which can be
used for the display of a variety of cur-
rent data of the VLT, e.g. current status
of the analog and digital inputs of the
control card and, therefore, their usage
as inputs for the master.
Parameters specific to PROFIBUS
8 0 0 Protocol selection (PROTOCOL SELECT)
Value
PROFIBUS FMS
PROFIBUS DP
Function
Selection of the PROFIBUS protocol supported by
the master.
Description of the selection
FMS: Communication according to DIN 19245,
part 2
DP:Communication according to EN 50170,
part 3
Factory settings
MG.90.D1.02 – VLT is a registered Danfoss trademark
VLT ® 5000/5000 Flux/6000 HVAC/8000 AQUA PROFIBUS
In the event of an update of parameter 800, even
with an unchanged data value, the PROFIBUS op-
tion is initialized, which means that all communica-
tion parameters 801, 802, ..., e.g. slave address,
baud rate, PPO type etc., are being updated.
801 Baud rate selection (BAUD RATE SELECT)
series
Value
Auto (AUTO DETECTION)
12000 kBaud*
*only DP
Function
Selection of the PROFIBUS transmission speed. It
must correspond to the transmission speed of the
master and the other PROFIBUS nodes.
Description of the selection
Auto:
9.6-12000 kBaud: When a fixed baud rate is se-
[0]
[1]
8 0 2 Minimum station delay
Value
25 - 2000 bit times
Function
The minimum response time of the VLT, i.e. the
minimum time from the receipt of a telegram to the
dispatch of the reply, can be adjusted between 25
and 1000 bit times.
9.6 kBaud
19.2 kBaud (19.2 kBAUD)
93.75 kBaud (93.75 kBAUD)
187.5 kBaud (187.5 kBAUD)
500 kBaud (500 kBAUD)
1500 kBaud (1500 kBAUD)
3000 kBaud* (3000 kBAUD)
6000 kBaud* (6000 kBAUD)
(12000 kBAUD)
The current PROFIBUS transmission speed
is determined automatically when the con-
nected bus is active.
lected, the duration of the turn-on phase is
reduced, since it can take a few seconds to
determine the current baud rate.
During an update of parameter 800 or during
the next turn-on procedure, the parameter
801 changes too.
(MIN. STAT. DELAY)
Parameter 802 is only active when FMS has
been selected in parameter 800. The station
delay time is fixed at 11 bit times when DP
has been selected.
[0]
(9.6 kBAUD) [1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
1500
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