IMPULSE
®
•G+ & VG+ Series 4 Technical Manual
November 2020
Page 56
4.3.2 Initialization Setup
4.3.2.1 Parameter Access Level (A01-01)
This parameter allows the “masking” of parameters according to user level. See the following table:
Table 4-1: Parameter Access Level Settings
4.3.2.2 Control Method (A01-02)
A VG+ VFD comes pre-configured to Flux Vector and locked into that setting. A G+ VFD comes pre-configured to
V/f and may be changed to Open Loop Vector, but not Flux Vector.
Table 4-2: Control Method Settings
NOTE: An auto-tune should be performed for all Flux Vector and Open Loop Vector applications. See Section 4.4
on page 64.
Setting Description
0 Operation Only Access to only parameters A01-01, A01-06, and all U monitors.
1 User Parameters Allows access to only the parameters programmed to A02-01 through A02-32.
2 Advanced Level All parameters can be viewed and edited.
Setting Description Model
0 Volts-per-Hertz (V/f)
Use this mode for simple speed control and for multiple motor applications with low demands to
dynamic response or speed accuracy. This control method is also used when the motor
parameters are unknown and Auto-Tuning cannot be performed. The speed control range is 40:1.
G+
2 Open Loop Vector (OLV)
Use this mode for applications that require precise speed control, quick torque response, and
high torque at low speed without using a speed feedback signal from the motor. The speed
control range is 200:1.
G+
3 Flux Vector (FLV)
Use this mode for applications that require precise speed control down to zero speed, quick
torque response or precise torque control, and a speed feedback signal from the motor. The
speed control range is up to 1500:1.
VG+
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