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Danfoss MCA 121 User Manual

Danfoss MCA 121
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6 Parameters
6.1 Parameter Group 8-**
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 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 8-02 Control Word Source back to default
setting RS-485, and the frequency converterr then trips. If an
option is installed after initial power-up, the setting of
8-02 Control Word Source will not change but the frequency
converter will trip and display: Alarm 67 Option Changed.
When you retrofit a bus option into a frequency converter, that
did not have a bus option installed to begin with, you must take
an ACTIVE decision to move the control to Bus based. This is
done for safety reasons in order to avoid an accidental change.
This parameter cannot be adjusted while the motor is running.
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
8-03 Control Word Timeout Time
Range: Function:
1.0 s* [Application
dependant]
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 will then be carried
out. The time-out counter is triggered by
a valid control word.
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 in order to restart: via the
fieldbus, via the reset button on the LCP 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 causing
the time-out situation to disappear,
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
The following configuration is required in order to change
the set-up after a time-out:
Set 0-10 Active Set-up to [9] Multi set-up and select the
relevant link in 0-12 This Set-up Linked to.
8-05 End-of-Timeout Function
Option: Function:
Select the action after receiving a valid
control word following a time-out. This
parameter is active only when 8-04 Control
Timeout Function is set to [Set-up 1-4].
[0] Hold set-up
Retains the set-up selected in 8-04 Control
Timeout Function and displays a warning,
Parameters MCA 121 EtherNet/IP
28 MG.90.J3.02 - VLT
®
is a registered Danfoss trademark
6
6

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Danfoss MCA 121 Specifications

General IconGeneral
BrandDanfoss
ModelMCA 121
CategoryMedia Converter
LanguageEnglish

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