MG.10.O1.02 VLT is a registered Danfoss trademark
26
VLT
®
5000 INTERBUS
Parameters
■
INTERBUS specific VLT parameters
Only the INTERBUS specific parameters (800 - 807
and 915, 916, 9 . . ) are described in this manual.
Most VLT 5000 Series parameters and their
functions are unaffected by the INTERBUS option.
Refer to the parameter description in the VLT 5000
Series product manual.
Special attention must be given to the following
parameters that are not described in this manual:
- 002: If operation site = Local, then control via
INTERBUS is not possible
- 100: If parameter 512 is set to DRIVECOM, it is
only possible to select speed open
loop or speed closed loop.
- 502 - 508: Selection of how to gate INTERBUS
control commands with control card
digital inputs.
- 512: Control word profile, selects a control word
according to DRIVECOM or a
Danfoss specified control word.
- 515 - 540: Data readout parameters that can be
used to read various actual data from
the VLT, for example actual status of
the analog and digital inputs of the
control card thus using these as
inputs to the master.
801 Baud rate select
(BAUD RATE SELECT)
Selection:
✭
500 kBaud (500 KBAUD)
[30]
Function:
Selection of the INTERBUS transmission speed.
Description of selections:
- 500 kBaud:
The INTERBUS transmission speed
is fixed to 500 kBaud at this time.
803 Bus time out
(BUS TIME OUT)
Selection:
1 - 99 sec
✭
1 sec
804 Bus time out function
(TIME OUT FUNCT.)
Selection:
✭
Off (OFF)
[0]
Freeze output frequency (FREEZE OUTPUT)
[1]
Stop with auto restart (STOP)
[2]
Output frequency = JOG freq. (JOGGING)
[3]
Output freq. = Max. freq. (MAX SPEED)
[4]
Stop with trip (STOP AND TRIP)
[5]
Control without INTERBUS
[6]
(NO COM OPT CONTROL)
Select setup 4 (SELECT SETUP 4)
[7]
Function:
The time out counter is triggered at the first reception
of a valid control word. When process data is used.
Acyclical PCP will not trigger the time out counter.
The
time out
function will be activated if CTW is not
updated within the specified time, set in parameter
803.
The VLT remains in the time out state until one of the
following four conditions is true:
1. Valid control word is received and reset (Bus,
terminals or local control panel) is activated (reset
is only necessary when the time out function
Stop w. trip
is selected)
⇒
control via INTERBUS
is resumed with the actual control word.
2. Parameter 002 =
Local
⇒
Local control via local
control panel is enabled.
3. Parameter 928 =
Disabled
⇒
Normal control via
terminals and RS485 is enabled.
The time out counter is reset and must be
trigged by a valid control word before a new time
out can be activated.
4. Parameter 804 =
Off
⇒
control via INTERBUS is
resumed and the most recent control word is
used.
Description of selections:
- Freeze output frequency
: Freeze output
frequency until communication is resumed.
- Stop with auto restart
: Stop with auto restart
when communication is resumed.
- Output frequency = JOG freq.
: Motor will run at
JOG frequency until communication is resumed.
- Output frequency = Max. freq.
: Motor will run at
max. frequency until communication is resumed.
- Stop with trip
: Motor is stopped, reset needed for
restart, see explanation above.
- Control without INTERBUS
: Control via
INTERBUS is disabled and control is only possible
via standard RS485 interface, until communication
is resumed.
-
Select setup 4:
Setup 4 is selected if timeout
occurs. If communication is resumed the VLT will
not cange back to the setup it used before the
timeout occured.
