Danfoss VLT HVAC Series Programming Manual page 116

3 Parameter Description
8-03 Control Timeout Time
Range:
60.0 s* [1.0 - 18000.0 s]
3
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
In LonWorks, the timeout function is also activated when the following SNVTs fail to be updated within the time period specified in par.8-03
Timeout Time :
nviStartStop
nviReset Fault
nviControlWord
8-05 End-of-Timeout Function
Option:
[0] Hold set-up
[1] * Resume set-up
3-92
Function:
Enter the maximum time expected to pass between the reception of two consecutive messages. If
this time is exceeded, it indicates that the serial communication has stopped. The function selected
Control Timeout Function Control Timeout Function
in par.8-04
In LonWorks, the following variables will trigger the Control Word Time parameter:
nviStartStop
nviReset Fault
nviControlWord
nviDrvSpeedStpt
nviRefPcnt
nviRefHz
Function:
Select the timeout function. The timeout function is activated when the control word fails to be
updated within the time period specified in par.8-03
after setting the N2 protocol.
nviDrvSpeedStpt
nviRefPcnt
nviRefHz
Function:
Select the action after receiving a valid control word following a timeout. This parameter is active
Control Timeout Function
only when par.8-04
Retains the set-up selected in par.8-04
8-06 Reset Control Timeout toggles. Then the adjustable frequency drive resumes its original set-
up.
Resumes the set-up active prior to the timeout.
MG.11.C6.22 - VLT ® is a registered Danfoss trademark
VLT ® HVAC Drive Programming Guide
will then be carried out.
Control Timeout Time
. Choice [20] only appears
is set to [Set-up 1-4].
Control Timeout Function and displays a warning, until par.
Control