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10.301 (ID 628) Magnetizing Time at Start
Location in the menu:
P2.6.14.8
(Standard Application, Local/Remote Control Application, Multi-step Speed Control Application, PID Control Applica-
tion)
P2.6.17.8
(Multi-purpose Control Application, VACON
®
NXS)
P2.6.15.8
(Multi-purpose Control Application, VACON
®
NXP)
Use this parameter to set the time during which the DC current is fed to the motor before the acceleration starts.
Defines the time for how long the magnetization current (
ID 627
) is applied to the motor at start. The magnetizing current at start is
used to premagnetize the motor before running. It improves the torque performance at start. The time needed depends on the size
of the motor. The parameter value varies from 100 ms to 3 s. The bigger the motor the more time is needed.
10.302 (ID 631) Identification
Location in the menu:
P2.6.12
(Pump and Fan Control Application)
P2.6.13
(Standard Application, Local/Remote Control Application, Multi-step Speed Control Application, PID Control Applica-
tion)
P2.6.16
(Multi-purpose Control Application, VACON
®
NXS)
P2.6.7
(Multi-purpose Control Application, VACON
®
NXP)
Use this parameter to find the parameter values that are optimal for the operation of the drive.
The identification run calculates or measures the motor parameters that are necessary for a good control of the motor and speed.
The identification run helps in adjusting the motor-specific and the drive-specific parameters. It is a tool for the commissioning and
the servicing of the drive. The goal is to find the parameter values that are optimal for the operation of the drive.
Before the identification run, set the following motor nameplate parameters:
ID 110 Nominal voltage of the motor (P2.1.6)
ID 111 Nominal frequency of the motor (P2.1.7)
ID 112 Nominal speed of the motor (P2.1.8)
ID 113 Nominal current of the motor (P2.1.9)
ID 120 Motor cos phi (P2.1.10)
Selection
number
Selection name
Description
0
No action
No identification requested.
1
Identification without motor
run
The drive is run without speed to identify the motor parameters. The motor is sup-
plied with current and voltage but with zero frequency. U/f ratio is identified.
2
Identification with motor run
(VACON
®
NXP only)
The drive is run with speed to identify the motor parameters. U/f ratio and magneti-
zation current are identified.
This identification run must be performed with no load on the motor shaft for accu-
rate results.
3
Encoder identification run
Identifies the shaft zero position when using PMS motor with absolute encoder.
4
Identification all
Shaft is rotated during identification. Selections 1–3 are made in sequence.
5
DTC identification
Dead time compensation. Shaft is not rotated during this identification
6
Identification failed
This value is stored if identification fails.
To activate the Identification function, set this parameter and give a start command. Give the start command in 20 s. If there is no
start command in that time, the identification run does not start. The parameter is reset to the default value and an identification
alarm shows.
To stop the identification run before it is completed, give a stop command. It resets the parameter to the default value. If the identi-
fication run is not completed, an identification alarm shows.
AB296635287482en-000301 / DPD00903
246 | Danfoss A/S © 2023.02
Parameter Descriptions
VACON® NX All-in-One
Application Guide
Summary of Contents for VACON NX
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