Danfoss VLT HVAC Drive FC 102 Programming Guide

Parameter 30-10 Wobble Ratio
Table 1073: Parameter 30-10 Wobble Ratio
30-10 Wobble Ratio
Default value: 1
Parameter type: Range, 0.1 - 10
Setup: All setups
Conversion index: -1
Data type: Uint8
Change during operation: True
If the ratio 0.1 is selected: t
down
is 10 times greater than t
up
. If the ratio 10 is selected: t
up
is 10 times greater than t
down
.
Center frequency
Use parameter group 3-1* References to set the center frequency.
Parameter 30-11 Wobble Random Ratio Max.
Table 1074: Parameter 30-11 Wobble Random Ratio Max.
30-11 Wobble Random Ratio Max.
Default value: 10
Parameter type: Range, par. 17-53 - 10
Setup: All setups
Conversion index: -1
Data type: Uint8
Change during operation: True
Enter the maximum allowed wobble ratio.
Parameter 30-12 Wobble Random Ratio Min.
Table 1075: Parameter 30-12 Wobble Random Ratio Min.
30-12 Wobble Random Ratio Min.
Default value: 0.1
Parameter type: Range, 0.1 - par. 30-11
Setup: All setups
Conversion index: -1
Data type: Uint8
Change during operation: True
Enter the minimum allowed wobble ratio.
Parameter 30-19 Wobble Delta Freq. Scaled
Table 1076: Parameter 30-19 Wobble Delta Freq. Scaled
30-19 Wobble Delta Freq. Scaled
Default value: 0 Hz
Parameter type: Range, 0 - 1000 Hz
Setup: All setups
Conversion index: -1
Data type: Uint16
Change during operation: False
Readout parameter. View the actual wobble delta frequency after scaling has been applied.
5.23.2 30-2* Adv. Start Adjust
N O T I C E
This parameter group is only available in FC 302.
Parameter 30-20 High Starting Torque Time [s]
Table 1077: Parameter 30-20 High Starting Torque Time [s]
30-20 High Starting Torque Time [s]
Default value: Size related
Parameter type: Range, 0 - 60 s
Setup: All setups
Conversion index: -2
Data type: Uint16
Change during operation: True
Define for how long the increased high starting torque current defined in parameter 30-21 High Starting Torque Current should be
applied.
AU275636650261en-000101 / 130R0334 | 579Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide

Danfoss VLT HVAC Drive FC 102 Specifications

General

Enclosure	IP20, IP21, IP55
Ambient Temperature Range	-10°C to +40°C
Storage Temperature Range	-25°C to +70°C
Relative Humidity	5-95% (non-condensing)
Communication Protocols	Modbus RTU, BACnet, Profibus
Certifications	CE, UL, cUL
Control Principle	PWM
Cooling Method	Forced air cooling
Input Voltage	200-240V, 380-480V, 525-600V
Control Modes	sensorless vector control, closed loop vector control