Parameters; Parameter Group 8 - Danfoss MCA 122 Modbus TCP Operating Instructions Manual

Parameters

5 Parameters

5.1 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 Control by using both digital input and
ctrl.word 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
Option: Function:
NOTICE
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.
[0] None
[1] FC RS485
[2] FC USB
[3] Option A
[4] Option B
[5] Option C0
[6] Option C1
[30] External
Can
MCA 122 Modbus TCP
8-03 Control Word Timeout Time
Range:
1 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]
[1]
[2]
[3]
[4]
[5]
[7]
[8]
[9]
[10] Select setup 4 See [7] Select setup 1
[26] Trip
NOTICE
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.
®
MG90P202 - VLT is a protected Danfoss trademark
Function:
[ 0.1 - Enter the maximum time expected to pass
*
18000 s] 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:
Off Resumes control via serial bus (fieldbus or
standard) using the most recent control
word.
Freeze output Freezes output frequency until communi-
cation resumes.
Stop Stops with auto restart when communi-
cation resumes.
Jogging Runs the motor at JOG frequency until
communication resumes.
Max. speed Runs the motor at maximum frequency until
communication resumes.
Stop and trip Stops the motor, then resets the frequency
converter to restart: via the fieldbus, via
[Reset], or via a digital input.
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.
Select setup 2 See [7] Select setup 1
Select setup 3 See [7] Select setup 1
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