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NORD Drivesystems BU0300 User Manual

Page 84

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NORDAC trio SK 300E Manual

84

Subject to technical alterations

BU 0300 EN

Parameter

Setting value / Description / Note

Supervisor

Parameter

set

Available with option

P210 Static

boost

S P

Always available

0 ... 400 %
[ 100 ]

The static boost affects the current that generates the magnetic field. This is equivalent to the no load
current of the respective motor and is therefore load-independent. The no load current is calculated
using the motor data. The factory setting of 100% is sufficient for normal applications.

P211 Dynamic

boost

S P

Always available

0 ... 150 %
[100]

The dynamic boost affects the torque generating current and is therefore a load-dependent
parameter. The factory 100% setting is also sufficient for typical applications.
Too high a value can lead to overcurrent in the FI. Under load therefore, the output voltage will be
raised too sharply. Too small a value leads to low torque.

P212 Slip

compensation

S P

Always available

0 ... 150 %
[ 100 ]

The slip compensation increases the output frequency, dependent on load, to keep the asynchronous
motor speed approximately constant.
The factory setting of 100% is optimal when using DC asynchronous motors and correct motor data
has been set.

P213

ISD control loop gain

S P

Always available

5 ... 400 %
[ 100 ]

This parameter influences the control dynamics of the FI current vector control (ISD control). Higher
settings make the controller faster, lower settings slower.
This parameter can be adjusted to suit the type of application, e.g. to avoid unstable operation.

P214 Torque

precontrol

S P

Always available

-200 ... 200 %
[ 0 ]

This function allows a value for the expected torque requirement to be set in the controller. This
function can be used in lifting applications for a better load transfer during start-up.

NOTE:

Motor torques (with rotation field right) are entered with a positive sign, generator torques
are entered with a negative sign. The reverse applies for the rotation field left.

P215 Boost

precontrol

S P

Always available

0 ... 200 %
[ 0 ]

Only with linear characteristic curve (P211 = 0% and P212 = 0%).
For drives, which require a high starting torque, this parameter provides the option of switching on an
additional current in the start phase. The application time is limited and can be selected at parameter
>Lead boost time< P216.
All current and torque current limits that may have been set (P112 and P537) are deactivated during
the time boost precontrol.

P216

Time Boost precontrol

S P

Always available

0.0 ... 10.0 s
[ 0.0 ]

Only with linear characteristic curve (P211 = 0% and P212 = 0%).
Application time for increased starting current.