Nord Drivesystems NORDAC FLEX SK 215E Series User Manual

NORDAC FLEX (SK 200E ... SK 235E) – Users Manual for Frequency Inverters
150 BU 0200 en-3118
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P212
Slip compensation
(Slip compensation)
S P
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 excludes any negative influences. With PMSM motors, the parameter must
be left at the factory setting.
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Information
V/f characteristic curve
With certain applications, particularly those with high centrifugal mass (e.g. fan drives), it may be
necessary to control the motor with the aid of a U/f characteristic. In order to do this, parameters
P211 and P212 must each be set to 0%.
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P213
ISD ctrl. loop gain
(Amplification of ISD control)
S P
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.
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P214
Torque precontrol
(Torque precontrol)
S P
-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.
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P215
Boost precontrol
(Boost precontrol)
S P
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 P215 ≠ 0 results in incorrect
control.
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Nord Drivesystems NORDAC FLEX SK 215E Series Specifications

General

Brand	Nord Drivesystems
Model	NORDAC FLEX SK 215E Series
Category	Inverter
Language	English