Danfoss VACON NX All-in-One Application Manual page 240

VACON® NX All-in-One
Application Guide
Table 118: Selections for Motor Control Mode in Different Applications
Selec- Standard Appli-
tion cation
0 VACON NXS/P
®
1 VACON NXS/P
®
2 Not used
3 VACON NXP
®
4 NA
Selec- Selection name
tion
number
0 Frequency con-
trol
1 Speed control
2 Torque control
3 Speed crtl
(closed loop)
4 Torque crtl
(closed loop)
10.278 (ID 601) Switching Frequency
Location in the menu: P2.6.9 (Standard Application, Local/Remote Control Application, Multi-step Speed Control Application, PID
Control Application, Multi-purpose Control Application, Pump and Fan Control Application)
Use this parameter to set the switching frequency of the AC drive.
When increasing the switching frequency, the capacity of the AC drive reduces. To reduce capacitive currents in the motor cable,
when the cable is long, we recommend using a low switching frequency. To reduce the motor noise, use a high switching frequen-
cy.
The range of this parameter depends on the size of the AC drive:
Table 119: Size-dependent Switching Frequencies
Type
0003-0061 NX_2
0075-0300 NX_2
0003-0061 NX_5
0072-0520 NX_5
0004-0590 NX_6
240 | Danfoss A/S © 2023.02
Local/Remote Multi-step Speed
Control Applica- Control Applica-
tion tion
VACON NXS/P VACON
® ®
VACON NXS/P VACON
® ®
Not used Not used
VACON NXP VACON
® ®
NA NA
Description
Drive frequency reference is set to output frequency without slip compensation. Finally, motor
load defines the motor actual speed.
Drive frequency reference is set to motor speed reference. The motor speed remains the same
regardless of motor load. Slip is compensated.
Speed reference is used as maximum speed limit and the motor produces torque within speed
limit to achieve torque reference.
Drive frequency reference is set to motor speed reference. The motor speed remains the same
regardless of motor load. In Closed Loop control mode, speed feedback signal is used to achieve
optimum speed accuracy.
Speed reference is used as the maximum speed limit that depends on the torque speed limit CL
(ID1278) and motor produces torque within speed limit to achieve torque reference. In Closed
Loop control mode, speed feedback signal is used to achieve optimum torque accuracy.
Min. [kHz]
1.0
1.0
1.0
1.0
1.0
PID Control Ap-
plication
NXS/P VACON NXS/P
®
NXS/P VACON NXS/P
®
Not used
NXP VACON NXP
®
NA
Max. [kHz]
16.0
10.0
16.0
6.0
6.0
Parameter Descriptions
Multi-purpose Con- Pump and Fan
trol Application Control Appli-
cation
VACON NXS/P VACON
®
VACON NXS/P VACON
®
VACON NXS/P NA
®
VACON NXP NA
®
VACON NXP NA
®
Default [kHz]
10.0
3.6
10.0
3.6
1.5
AB296635287482en-000301 / DPD00903
NXS
®
NXS
®