47 motor ol hertz, 48 motor ol factor, 49 motor poles – Rockwell Automation Liqui-Flo DBT Reach Drive User Manual

Page 35: 53 motor cntl sel

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Parameter Descriptions

3-9

Selects the output frequency below which the motor operating current is derated. The
motor thermal overload will then generate a fault at lower levels of current.

Sets the amps threshold for motor overload fault.

Motor FLA x OL Factor = Operating Level

Defines the number of poles in the motor.

Sets the method of motor control used in the drive.

Important: “FVC Vector” mode with encoder feedback requires autotuning of the

motor, both coupled and uncoupled to the load. Being coupled to the load
will determine inertia (preferably lightly loaded). Total Inertia (450) will
have to be estimated if uncoupled for tuning of the speed loop or
separately adjust Ki (445) and Kp (446).

Sensrls Vect = Maintains consistent magnetizing current up to base speed. Voltage
increases as a function of load.

47

Motor OL Hertz

Range:

0.0 to Motor NP Hz [0.1 Hz]

Default:

Motor NP Hz/3

Access:

2

Path: Motor Control>Motor Data

See also:

42, 220

48

Motor OL Factor

Range:

0.20 to 2.00 [0.1]

Default:

1.00

Access:

2

Path: Motor Control>Motor Data

See also:

42, 220

49

Motor Poles

Range:

2 to 40 [1 Pole]

Default:

4

Access:

0

Path: Motor Control>Motor Data

See also:

53

Motor Cntl Sel

Range:

0 = Sensrls Vect
1 = SV Economize
2 = Custom V/Hz
3 = Fan/Pmp-V/Hz
4 = FVC Vector

Default:

0 = Sensrls Vect

Access:

2

Path: Motor Control>Torq Attributes

See also:

80

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