Danfoss VLT CDS302 User Manual

6.9 Parameters: 8-** Communications and
Options
6.9.1 8-0* General Settings
8-01 Control Site
Option: Function:
The setting in this parameter overrides
the settings in 8-50 Coasting Select to
8-56 Preset Reference Select.
[0] * Digital and
ctrl.word
Control by using both digital input and
control word.
[1] Digital only Control by using digital inputs only.
[2] Controlword only Control by using control word only.
8-02 Control Word Source
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.
Option: Function:
[0] None
[1] * FC RS485
[2] FC USB
[3] * Option A
[4] Option B
[5] Option C0
[6] Option C1
[30] External Can
NOTE
This parameter cannot be adjusted while the motor is
running.
8-03 Control Word Timeout Time
Range: Function:
[1.0 s] 0.1-18000.0 s 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
8-03 Control Word Timeout Time
Range: Function:
valid control word triggers the time-out
counter.
20 s* [ 0.1 -
18000.0 s]
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.
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: Function:
[0] * Off Resumes control via serial bus (fieldbus or
standard) using the most recent control
word.
[1] Freeze output Freezes output frequency until communi-
cation resumes.
[2] Stop Stops with auto restart when communi-
cation resumes.
[3] Jogging Runs the motor at JOG frequency until
communication resumes.
[4] Max. speed Runs the motor at maximum frequency
until communication resumes.
[5] Stop and trip Stops the motor, then resets the frequency
converter to restart: via the fieldbus, via
[Reset], or via a digital input.
[7] Select setup 1 Changes the set-up upon reestablishment of
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.
[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
NOTE
To change the set-up after a time-out, the following
configuration is required:
Set 0-10 Active Set-up to [9] Multi set-up and select the
relevant link in 0-12 This Set-up Linked to.
Parameter Descriptions
Operating Instructions VLT
®
CDS302 and CDS303
78 MG34M302 - VLT
®
is a registered Danfoss trademark/Commercial Compressor
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Danfoss VLT CDS302 Specifications

General

Brand	Danfoss
Model	VLT CDS302
Category	DC Drives
Language	English