LS ELECTRIC SV-iS7 Series, Руководство пользователя

Страница: 256 / 491

Learning Advanced Features
Adv
anc
ed
Feat
ur
es
239
Code Description
BAS-15 Rated Volt,
BAS-16 Efficiency then run auto tuning at BAS-20.
APO-01 Enc Opt Mode Sets the encoder option mode to “1 (feedback) ” .
APO-04 Enc Type Sel
Sets the encoder ’ s signal delivery options.
Refer to the instruction manual supplied with the encoder and select
one of the following options:
0: Line Driver / 1: Totem or Com / 2: Open Collect
APO-05 Enc Pulse Sel
Sets the encoder output pulse options.
Setting Description
0 (A+B) Fx operation
1 (A+B) Rx operation
2 A Frequency reference
APO-06 Enc Pulse Num Sets the number of pulses per rotation.
APO-08 Enc Monitor
Converts the encoder output into motor rotation and displays in Hz or
rpm units.
BAS-20 Auto Tuning
To test the encoder:
Sets the auto tuning type to “ 3 (Enc Test) ” to check the encoder
connection.
The inverter operates in the Fx direction and accelerates to 20 Hz until
it decelerates to 0 Hz and continues operating in the Rx direction,
accelerating to 20 Hz.
The BAS-20 parameter value is automatically changed to
“ None ” if a
connection error is not detected.
The “Enc reverse” message is displayed if the encoder connection is not
correct. If this happens, you can change the APO-05 (ENC Pulse Sel)
parameter setting to match the actual direction, or swap the two
encoder cables that are connected to the motor.
To perform rotating auto tuning , separate the load from the motor
axis, and set BAS-20 to “ 1 (ALL) ” . The motor stator resistance (Rs),
leakage inductance (Lsigma), stator inductance (Ls), no-load current
(Noload Curr) and rotor time constant (Tr) are saved in BAS-21, BAS-22,
BAS-23, BAS-14, and BAS-24 respectively.
CON-09 PreExTime
Sets the initial excitation time. Operation begins after the motor is
excited to the rated speed.
CON-10 Flux Force
Flux force may be used to reduce the initial excitation time. The motor
flux increases based on a time constant. To reduce the time to reach
the rated flux, you can supply a flux larger than the rating at first, and