NORD Drivesystems BU0180 User Manual

Page 89

6 Parameterisation

BU 0180 GB-0914

Pre-series version

Parameter

{Factory setting}

Setting value / Description / Note

Device

Supervisor

Parameter
set

P212

Slip compensation

(Slip compensation)

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.

If several motors (different loads or outputs) are operated with one FI, the slip compensation
P212 must be set to 0%. This rules out a negative influence. This is equally valid for
synchronous motors that do not have slip due to their design.

P213

Amplification ISD control

(amplification of ISD control)

25 ... 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.

Dependent on application type, this parameter can be altered, e.g. to avoid unstable operation

P214

Torque precontrol

(Torque precontrol)

-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 counter clockwise rotation.

P215

Boost precontrol

(Boost precontrol)

0 ... 200 %

{ 0 }

Only advisable with linear characteristic curve (P211 = 0% and P212 = 0%).

For drives that require a high starting torque, this parameter provides an option for switching in
an additional current during the start phase. The application time is limited and can be selected
at parameter >Time boost precontrol< P216.

All current and torque current limits that may have been set (P112 and P536, P537) are
deactivated during the boost lead time.

Note:

With active ISD control (P211 and / or P212

≠ 0) parameterisation of P216 ≠ 0 results

in incorrect control.

P216

Time boost precontrol

(Time boost precontrol)

0.0 ... 10.0 sec

{ 0.0 }

This parameter is used for 3 functionalities

Time limit for the boost lead: Effective time for the increased starting current.
Only with linear characteristic curve (P211 = 0% and P212 = 0%).

Time limit for suppression of pulse switch-off (P537): enables start-up under heavy load.

Time limit for suppression of switch-off on error in parameter (P401), setting { 05

} „0 – 10 V

with switch-

off on error 2“