KEB COMBIVERT F5-A Applications Manual page 218

Motor data and controller adjustments of the synchronous motor
6 Current control with
7 EMC adaption
Current offset adap-
8
tion
9 Controlled operation
Band-stop filter
10
11 Deviation controller
Voltage output for HF
12
applications
13 HF detection
14 HF injection
* Default values
Standstill current and stabilisation current (nn.01, nn.10)
The currents nn.01 "stabilisation current" and nn.10 "standstill current" can be switched off with bit 0 of nn.00.
The starting phase with activated currents runs more steady. In such a way this adjustment should not be
changed!
The values are limited to ½ of the HSR current In.18 if the rated motor current is higher than the inverter rated
current.
Stator resistance adaption
The stator resistance changing by temperature influences can affect the behavior at low speed as well as the
start. The RS adaptation adjusts the stator resistance and stabilizes the motor model therefore.
The I-part of the adaptation can be adjusted with nn.06 "rs adaption factor". The rs adaptation becomes active
with ru.17 "active current" > nn.01.
EMC adaption
The EMC changing by load and temperature influences is adjusted at upper speed.
The adaption becomes active at actual speed ru.07 > ¼ of the rated speed dr.24 and improves the accuracy
of the actual torque display ru.12.
Observer
The observer amplifies the influence of the measured currents in the model. The most effects become notice-
able in the upper speed range.
The value must be increased if current oscillations occur at e.g. applications with high frequency.
The observer factor can be adjusted with nn.07 "observer factor".
Page 7.6 - 18 COMBIVERT F5-A, -E, -H
0: measured cur-
rent *
Current control to model currents
64: estimated
currents
0: off
Adapts the EMC at upper speed
128: On *
0: Off *
Adapts the current offset during operation
256: An
0: Off *
Switching off the model during start ramp
512: An
0: Off *
Activates the harmonic absorber for operation with sine-
wave filter
1024: An
0: Off *
Deviation of model currents to measured currents
2048: An
0: Off *
Activates double voltage output
4096: An
0: Off *
Determines rotor and system position when switching on.
8192: An
0: Off *
Determines the rotor position continuously at low speed.
16348: An
© KEB, 2012-10