Asr Gain Compensation In Constant Power Range; Acr Gain Compensation In Constant Power Range; Machine Time Constant 2; V/F Middle Point - GE VAT2000 Instruction Manual

B13-6

ASR gain compensation in constant power range

B13-7

ACR gain compensation in constant power range

Increase or decrease each ASR gain and ACR gain in power constant speed range.
B14-0
ASR dead band setting
Refer to Fig. 5-1 for details.
B15-0

Machine time constant 2

This is used to calculate the ASR gain. This is valid when the sequence input machine time
constant changeover is ON (MCH = ON).
TM [s] =
B17-0~3

V/f middle point

A V/f characteristic as shown on the right can
be obtained for motors having special V/f
characteristics.
(Note)
Set so that F1 ≤ F2 ≤ Base frequency (B00-
5) and V1 ≤ 2.
6. Control Functions and Parameter Settings
ACR gain
AS R gain
B 1 3 -6
B 1 3 -7
1 00 %
B a se sp e ed
(B 01 -5 )
2 2
GD [kgm ]∗1.027∗ (Nbase[min
375 ∗ Power [W]
M o tor spe e d
M a x sp e ed
(B 01 -4 )
TM
− 1
2
])
2
GD
Nbase : Base
Power : Motor rated output
Voltag e
1 00 %
B 17-1
B 17-3
6-44
: Machine time constant
: Total inertia of motor and load
speed
(F 2 , V 2 )
(F 1 , V 1 )
B 1 7-2 B 1 7-0 B 0 0-5
B a se
Fre qu e n c y
F req ue nc y