Parameter Description - Danfoss Native BACnet VLT HVAC Drive Operating Instructions Manual

Parameters

6.2 Parameter Description

6.2.1 8-** Comm. and Options
8-01 Control Site
Option:
[0] Digital and
*
ctrl.word
[1] Digital only
[2] Controlword only
6 6
8-02 Control Source
Option:
[0] None
[1] FC Port
[2] USB Port
*
[3] Option A
[4] Option B
This parameter cannot be adjusted while the motor is
running.
8-03 Control Timeout Time
Range:
0 s [0.1 -
*
18000 s]
24
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:
Select the source of the control word: one of two
serial interfaces or four installed options. During
initial power-up, the frequency converter automat-
ically 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 Source back to default setting FC Port,
and the frequency converter then trips. If an
option is installed after initial power-up, the
setting of 8-02 Control Source will not change but
the frequency converter will trip and display:
Alarm 67 Option Changed.
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 Timeout Function
will then be carried out.
In BACnet the following variables will trigger the
Control Word Time parameter:
Analog Outputs
Binary Outputs
AV0
AV1
AV2
MG.14.C1.02 - VLT
®
HVAC Drive Native BACnet Operating Instructions
8-03 Control Timeout Time
Range:
8-04 Control Timeout Function
Option:
[0] Off
*
[1] Freeze output
[2] Stop
[3] Jogging
[4] Max. speed
[5] Stop and trip
[7] Select setup 1
[8] Select setup 2
[9] Select setup 3
[10] Select setup 4
[20] N2 Override Release
8-05 End-of-Timeout Function
Option:
[0] Hold set-up Retains the set-up selected in 8-04 Control
[1] Resume set-
*
up
8-06 Reset Control Timeout
Option:
[0] Do not
*
reset
®
is a registered Danfoss trademark
Function:
AV4
BV1
BV2
BV3
BV4
BV5
Multistate Outputs
Function:
Select the time-out function. The time-
out function is activated when the
control word fails to be updated within
the time period specified in
8-03 Control Timeout Time. Choice [20]
only appears after setting the Metasys
N2 protocol.
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].
Timeout Function and displays a warning, until
8-06 Reset Control Timeout toggles. Then the
frequency converter resumes its original set-up.
Resumes the set-up active prior to the time-
out.
Function:
This parameter is active only when the choice Hold
set-up [0] has been selected in 8-05 End-of-Timeout
Function .
Retains the set-up specified in 8-04 Control Timeout
Function, [Select setup 1-4] following a control
time-out.