Danfoss VLT Programming Guide

3.9 Main Menu - Communications and Options - Group 8
3.9.1 8-** Comm. and Options
Parameter group for configuring communications and options.
3.9.2 8-0* General Settings
General settings for communications and options.
8-01 Control Site
Option: Function:
The setting in this parameter overrides the settings in par. 8-50 Coasting Select to par. 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 Source
Option: Function:
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 par. 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 par. 8-02
Control Source will not change but the frequency converter will trip and display:
Alarm 67
Option Changed .
[0] None
[1] FC Port
[2] USB Port
[3] * Option A
[4] Option B
[5] Option C0
[6] Option C1
[30] External Can
NB!
This parameter cannot be adjusted while the motor is running.
8-03 Control Timeout Time
Range: Function:
Application
dependent*
[1.0 - 18000.0 s] 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 par. 8-04
Control Timeout Function Control Time-out Function will then be carried out.
In BACnet the control timeout is only triggered if some specific objects are written. The object list
hold information on the objects that triggers the control timeout:
Analog Outputs
3 Parameter Description VLT
®
HVAC Drive Programming Guide
102 MG.11.C9.02 - VLT
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is a registered Danfoss trademark
3

Danfoss VLT Specifications

General

Frequency	50/60 Hz
Enclosure	IP20, IP21, IP55, IP66
Series	VLT
Control Technique	Flux Vector Control
Output Voltage	0-Vinput
Control Method	Fieldbus
Communication Interface	PROFIBUS, CANopen
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Cooling Method	Liquid Cooled
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% non-condensing
Altitude	Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating
Operating Temperature	-10°C to +50°C (14°F to 122°F)