Omron VARISPEED G7 Instruction Manual page 395

V/f Control with PG (A1-02 = 1)
V/f control with a PG enables precise control of machine line speed. Speed control using the speed feedback
of the machine shaft is possible in this mode.
Flux Vector Control (A1-02 = 2 or 4)
Flux vector control enables the use of high-performance drives without a speed detector. PG (pulse generator)
wiring is not required.
Vector Control with PG (A1-02 = 3)
Vector control with a PG is suitable for applications using high-precision drives with PG feedback. High-pre-
cision positioning, zero-speed control, and torque control are possible with this mode.
-6
10
Inverter
Fig 10.1
Inverter
PG Speed Control Card
(PG-A2 or PG-D2)
Fig 10.2
Inverter
Fig 10.3
Inverter
PG Speed Control Card
(PG-B2 or PG-X2)
Fig 10.4
(Thermal relay)
M1
M2
M3
Conveyor
M
PG
M
M
PG