•
•
•
Selec-
tion
number
Selection
name
Description
0
Automatic
Decision to use start angle identification is made automatically based on the encoder type connec-
ted to the drive. It serves common cases. Supports: OPTA4, OPTA5, OPTA7, and OPTAE boards.
1
Forced
Bypasses the drive automatic logic and forces the start angle identification to be active. Can be used,
for example, with absolute encoders to bypass absolute channel information and to use start angle
identification instead.
2
On Power-up
As a default, start angle identification is repeated in every start if the identification is active. This set-
ting will enable identification only in a first start after drive is powered up. In consecutive starts, an-
gle is updated based on the encoder pulse count.
10
Disabled
Used when Z-pulse from encoder is used for start angle identification.
10.518 (ID 1693) I/F Current
Location in the menu:
P2.6.16.6
(Multi-purpose Control Application, VACON
®
NXP)
Use this parameter to define the current level that is used when I/f control for PMS motors is enabled.
I/f Current parameter is used for several different purposes:
I/F Control
This parameter defines the current level during I/f control, in percent of the motor nominal current.
Zero Position with Incremental Encoder and Z-pulse
In closed loop control utilizing the encoder z-pulse, this parameter also defines the current level used in starting before the z-
pulse is received to synchronize with.
DC Start Angle Identification
This parameter defines the DC Current level when Start Angle Identification Time is set greater than zero.
10.519 (ID 1720) Torque Stabilator Limit Ratio
Location in the menu:
P2.6.18.4
(Multi-purpose Control Application, VACON
®
NXP)
Use this parameter to set a limit to the torque stabilator output.
ID 111
*
ID 1720
= Torque Stabilator Limit
10.520 (ID 1738) Voltage Stabilator Gain
Location in the menu:
P2.6.18.9
(Multi-purpose Control Application, VACON
®
NXP)
Use this parameter to set the gain of the voltage stabilizer.
10.521 (ID 1756) Start Angle ID Current
Location in the menu:
P2.6.16.4
(Multi-purpose Control Application, VACON
®
NXP)
Use this parameter to set the current level that is used in the start angle identification.
The correct level depends on the motor type used. In general, 50% of motor nominal current seems to be sufficient, but depending,
for example, on the motor saturation level, higher current is possibly needed.
10.522 (ID 1790) I/f Control Limit
Location in the menu:
P2.6.16.7
(Multi-purpose Control Application, VACON
®
NXP)
Use this parameter to set the frequency limit for the I/f control.
This parameter sets the frequency limit for I/f-control in per cent of the motor nominal frequency. I/f-control is used if the frequency
is below this limit. The operation changes back to normal when the frequency is above this limit with 1 Hz hysteresis.
10.523 (ID 1796) Flux Stabilator Coefficient
Location in the menu:
P2.6.18.8
(Multi-purpose Control Application, VACON
®
NXP)
Use this parameter to set the coefficient of the flux stabilizer for induction motors.
AB296635287482en-000301 / DPD00903 | 291
Danfoss A/S © 2023.02
Parameter Descriptions
VACON® NX All-in-One
Application Guide
Содержание VACON NX
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