SV-iS7 User Manual - Inverter Drive Supermarket

Chapter 8 Applied Functions
BAS-20 Auto Tuning: forward operation is run upto 20Hz if setting Enc Test of NO.3 after setting related parts of encoder
explained above. After forward operation and deceleration, acceleration is run upto 20Hz. If encoder does not have any
problems, auto tuning part changes to None. In case of misconnection, indicates the sign, ‘Enc reversed’. In this case,
change APO-05 Enc Pulse Sel or change and connect 2 lines out of inverted output lines connected to motor.
3) Auto Tuning
Select No. 1 All in auto tuning item(BAS-20).
4) Initial Excitation
CON-09 PreExTime : Sets the initial excitation time. Operation can be started after excitation to the rated speed of the
motor.
CON-10 Flux Force : The initial excitation time can be reduced. The motor flux increases to the rated flux with the time
constant in the following figure. Therefore, to reduce the time it takes to reach the rated flux, by supplying the flux-oriented
value higher than the rated flux so that the actual flux approximates the rated value, an motion is taken to reduce the
supplied flux-oriented value.
5) Gain Setting
CON-12 ASR P Gain 1, CON-13 ASR I Gain 1 : Sets the proportional gain and integral gain of the speed controller(ASR).
The higher the proportional gain is, the faster the response is, which applied to high load. But if the gain is too high, the
speed of the motor might oscillate.
CON-15 ASR P Gain 2, CON-16 ASR I Gain 2 : A separate controller gain can be used according to the rotation speed of
the motor and the load system. The gain of the speed controller varies according to the set values of the gain change
frequency(CON-18) and change time(CON-19).
CON-51 ASR Ref LPF : Used in vector speed mode. The filter time constant of the speed controller reference input can
be adjusted.
CON-52 Torque Out LPF : Used in the vector speed or vector torque mode. In the vector speed, the filter time constant of
the speed controller output can be adjusted. In the vector torque, the filter time constant of the torque command can be
adjusted.
Motor flux
Excitation
current
FX-CM
8-29