Danfoss D9h Programming Guide

Option
Name
Description
[1]
Std. asynchron
Default motor model when [0] Asynchron is selected in parameter 1-10 Motor Construction.
[2]
Std. PM, non sali-
ent
Selectable when [1] PM, non-salient SPM is selected in parameter 1-10 Motor Construction.
[3]
Std. PM salient
[10]
Danfoss OGD
LA10
Selectable when [1] PM, non-salient SPM is selected in parameter 1-10 Motor Construction. Only
available for T5 in 1.5–3 kW. Settings are loaded automatically for this specific motor.
[11]
Danfoss OGD
V210
Selectable when [1] PM, non-salient SPM is selected in parameter 1-10 Motor Construction. Only
available for T5 in 0.75–3 kW. Settings are loaded automatically for this specific motor.
Parameter 1-14 Damping Gain
Table 71: Parameter 1-14 Damping Gain
1-14 Damping Gain
Default value: 140%
Parameter type: Range, 0 - 250%
Setup: All setups
Conversion index: 0
Data type: Int16
Change during operation: True
The damping gain stabilizes the PM machine to run smoothly and with stability. The value of damping gain controls the dynamic
performance of the PM machine. High damping gain gives high dynamic performance and low damping gain gives low dynamic
performance. The dynamic performance is related to the machine data and load type. If the damping gain is too high or low, the
control becomes unstable.
Parameter 1-15 Low Speed Filter Time Const.
Table 72: Parameter 1-15 Low Speed Filter Time Const.
1-15 Low Speed Filter Time Const.
Default value: Size related
Parameter type: Range, 0.01 - 20 s
Setup: All setups
Conversion index: -2
Data type: Uint16
Change during operation: True
The time constant is used below 10% rated speed. Obtain quick control through a short dampening time constant. However, if this
value is too short, the control becomes unstable.
Parameter 1-16 High Speed Filter Time Const.
Table 73: Parameter 1-16 High Speed Filter Time Const.
1-16 High Speed Filter Time Const.
Default value: Size related
Parameter type: Range, 0.01 - 20 s
Setup: All setups
Conversion index: -2
Data type: Uint16
Change during operation: True
The time constant is used above 10% rated speed. Obtain quick control through a short dampening time constant. However, if this
value is too short, the control becomes unstable.
Parameter 1-17 Voltage Filter Time Const.
Table 74: Parameter 1-17 Voltage Filter Time Const.
1-17 Voltage Filter Time Const.
Default value: Size related
Parameter type: Range, 0.001 - 2 s
Setup: All setups
Conversion index: -3
Data type: Uint16
Change during operation: True
Reduces the influence of high frequency ripple and system resonance in the calculation of supply voltage. Without this filter, the
ripples in the currents can distort the calculated voltage and affect the stability of the system.
AU275636650261en-000101 / 130R033474 | Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide

Danfoss D9h Specifications

General

Brand	Danfoss
Model	D9h
Category	DC Drives
Language	English