Parameter Descriptions
3.10 Parameters: 8-** Communications and
Options
3.10.1 8-0* General Settings
3
3
8-01 Control Site
Option:
[0] Digital and
ctrl.word
[1] Digital only
[2] Controlword only
8-02 Control Word Source
Option:
[0]
None
[1]
FC RS485
[2]
FC USB
[3]
Option A
[4]
Option B
[5]
Option C0
[6]
Option C1
[30] External
Can
112
VLT
Function:
The setting in this parameter overrides
the settings in 8-50 Coasting Select to
8-56 Preset Reference Select.
Control by using both digital input and
control word.
Control by using digital inputs only.
Control by using control word only.
Function:
NOTE
This parameter cannot be adjusted while
the motor is running.
Select the source of the control word: one of
two serial interfaces or four installed options.
During initial power-up, the frequency
converter automatically sets this parameter to
[3] Option A if it detects a valid fieldbus option
installed in slot A. If the option is removed,
the frequency converter detects a change in
the configuration, sets 8-02 Control Word
Source back to default setting RS-485, and the
frequency converter trips. If an option is
installed after initial power-up, the setting of
8-02 Control Word Source does not change, but
the frequency converter trips and displays:
Alarm 67 Option Changed.
When retrofitting a bus option into a
frequency converter, that did not have a bus
option installed to begin with, take an ACTIVE
decision to move the control to Bus based.
This is done for safety reasons to avoid an
accidental change.
MG33MG02 - VLT
®
AutomationDrive Programming Guide
8-03 Control Word Timeout Time
Range:
[1.0 s] 0.1-18000.0 s
20 s
[ 0.1 -
*
18000.0 s]
8-04 Control Word Timeout Function
Select the time-out function. The time-out function activates
when the control word fails to be updated within the time
period specified in 8-03 Control Word Timeout Time.
Option:
[0]
Off
[1]
Freeze output Freezes output frequency until communi-
[2]
Stop
[3]
Jogging
[4]
Max. speed
[5]
Stop and trip
[7]
Select setup 1 Changes the set-up upon reestablishment of
[8]
Select setup 2 See [7] Select setup 1
[9]
Select setup 3 See [7] Select setup 1
[10] Select setup 4 See [7] Select setup 1
[26] Trip
®
is a registered Danfoss trademark
Function:
Enter the maximum time expected to
pass between the reception of two
consecutive telegrams. If this time is
exceeded, it indicates that the serial
communication has stopped. The
function selected in 8-04 Control Word
Timeout Function is then carried out. A
valid control word triggers the time-out
counter.
Enter the maximum time expected to
pass between the reception of two
consecutive telegrams. If this time is
exceeded, it indicates that the serial
communication has stopped. The
function selected in 8-04 Control Word
Timeout Functionis then carried out. A
valid control word triggers the time-out
counter.
Function:
Resumes control via serial bus (fieldbus or
standard) using the most recent control
word.
cation resumes.
Stops with auto restart when communi-
cation resumes.
Runs the motor at JOG frequency until
communication resumes.
Runs the motor at maximum frequency until
communication resumes.
Stops the motor, then resets the frequency
converter to restart: via the fieldbus, via
[Reset], or via a digital input.
communication following a control word
time-out. If communication resumes after a
time-out, 8-05 End-of-Timeout Function
defines whether to resume the set-up used
before the time-out, or to retain the set-up
endorsed by the time-out function.
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