Parameters: Communications And Options - Danfoss FC 300 Design Manual

FC 300 Design Guide
Parameters: Communica-
tions and Options
8-** Comm. and Options
Parameter group for configuring communications
and options.
8-0* General Settings
General settings for communications and options.
8-01 Control Site
Value:
Digital and ctrl. word
Digital only
Control word only
Function:
Select Digital and ctrl. word [0] for control using
both digital input and control word.
Select Digital only [1] for control using digital in-
puts only.
Select Control word only [2] for control using con-
trol word only.
The setting in this parameter overrules the set-
tings in par. 8-50 to 8-56.
8-02 Control Word Source
Value:
None
FC RS485
FC USB
Option A
Option B
Option C0
Option C1
Function:
Select the source of the control word: one of two
serial interfaces or four installed options. During
initial power-up, the frequency converter auto-
matically sets this parameter to Option A [3] 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 par.
8-02 back to default setting FC RS485, and the
frequency converter then trips. If an option is in-
stalled after initial power-up, the setting of par.
factory setting
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How to Programme
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() display text [] value for use in communication via serial communication port
MG.33.B7.02 - VLT is a registered Danfoss trademark
8-02 will not change but the frequency converter
will trip and display: Alarm 67 Option Changed.
This parameter cannot be adjusted while the mo-
tor is running.
8-03 Control Word Timeout Time
Value:
0.1 - 18000.0 s
Function:
Enter the maximum time expected to pass be-
tween the reception of two consecutive telegrams.
If this time is exceeded, it indicates that the serial
communication has stopped. The function selec-
ted in par. 8-04 Control Word Time-out Function
will then be carried out. The time-out counter is
triggered by a valid control word.
8-04 Control Word Timeout Function
Value:
Off
Freeze Output
Stop
Jogging
Max. Speed
Stop and trip
Select set-up 1
Select set-up 2
Select set-up 3
Select set-up 4
Function:
Select the time-out function. The time-out func-
tion activates when the control word fails to be
updated within the time period specified in par.
8-03 Control Word Time-out Time.
- Off [0]: Resume control via serial bus
(Fieldbus or standard) using the most re-
cent control word.
- Freeze output [1]: Freeze output frequen-
cy until communication resumes.
- Stop [2]: Stop with auto restart when
communication resumes.
- Jogging [3]: Run the motor at JOG fre-
quency until communication resumes.
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