Frequency Reference Settings From Control Circuit Terminals - Omron SYSDRIVE 3G3FV User Manual

Basic Operation
Control Mode Characteristics
Characteristic
Basic control method
Speed detector
Optional Speed
Detectors
Speed control range
Starting torque
Speed control preci-
sion
Torque limit
Torque control
Example applications
Note Vector control has a greater starting torque and more precise speed control than V/f control, so
use of vector control is recommended whenever possible. Use V/f control in the following types of
applications:
S When several motors are being operated
S When special motors such as submersible motors or spindle motors are being used
(Situations in which auto-tuning cannot be used.)
S When operation is being coordinated with an older inverter control system
5-1-2 Frequency Reference Settings from Control Circuit
Terminals
These settings are required when inputting analog voltage or current signals from the control circuit
terminals.
H Frequency Reference Selection (b1-01)
Parameter b1-01 is used to select the reference source; it cannot be changed during operation.
Parameter Display name p y
number
b1-01 Reference Source 0 to 4
5-4
V/f Control
Voltage/frequency Voltage/frequency
control (open loop) control with speed
compensation
Not required Required
(pulse generator)
Not required 3G3FV-PPGA2 or
3G3FV-PPGD2
1:40 1:40
150%/3 Hz 150%/3 Hz
2 to 3% 0.03%
Not possible Not possible
Not possible Not possible
Multiple motors Simple speed
feedback control
Setting g Units
range
---
V/f w/PG Fdbk Open Loop Vector
Current vector con-
trol without PG
Not required
Not required
1:100
150%/1 Hz
0.2%
Possible
Not possible
Variable speed
drive applications
Default
setting
V/f
Control
1 Quick-start, Basic, or Advanced
Chapter 5
Flux Vector
Current vector con-
trol with PG
Required
(pulse generator)
3G3FV-PPGB2 or
3G3FV-PPGX2
1:1,000
150%/0 Hz
0.02%
Possible
Possible
Simple servo
drives
Precision speed
control
Torque control
Valid access levels
V/f with Open Loop
PG Vector
Flux
Vector