BENSHAW M2L 3000, User Manual

Page: 84 / 140

M2L 3000 Series VFD
84
AFN-12 (40197) Flying Start Initial Frequency Value: 1 – 300 Hz Default: 60
Flying Start Initial Frequency defines the inverter output frequency that the drive begins
its speed search. The drive starts at this frequency and searches down towards zero
speed.
AFN-13 (40166) Flying Start Frequency Ramp
Time Value: 0.01 – 60.00 Seconds Default: 30.00
Flying Start Frequency Ramp Time defines the length of time for the ramp in Step 2 of
the Flying Start sequence.
AFN-14 (40167) Flying Start Current Threshold Value: 1 – 50 % Default: 15
Flying Start Current Threshold defines the level which the current must drop below for
the drive to recognize that it has matched the motor speed. Once the current drops be-
low this level, the drive continues to Step 3 of the Flying Start sequence.
AFN-15 (40069) Controlled Fault Stop Enable Value: 0: Disable
1: Enabled
Default: 1
Most fault conditions typically result in the motor coasting to a stop. When Control Fault
Stop Enable is set to “Enabled”, the following specific faults will override this default,
and stop the motor using the programmed deceleration profile.

Motor Overload

Drive Overtemp

Overcurrent/Undercurrent

Converter Overtemp

Remote I/O Timeout

HMI Communication Loss

Fieldbus Communication Loss

External Fault from a digital input
AFN-16 (44450) Auto Start Configuration Value: 0-3 Default: Disabled
0: The Auto Start parameter determines if the drive can automatically initiate a start se-
quence under the given conditions:

Control Source (Local or Remote, I/O-136 or I/O-137) must be set to “Digital
Input”

One active Digital Input must be set to “Run Forward” or “Run Reverse”
1: Control Power: The drive will automatically initiate a start sequence when control
power is applied.
2:
Fault Reset: The drive will automatically initiate a start sequence when a fault condi-
tion is cleared.
3:
Control Power or Fault Reset: The drive will automatically initiate a start sequence
both when control power is applied and when a fault condition is cleared.
AFN-17 (40049) Motor No Load Current Value: 1 – 6000 Amps Default: 33.0
AFN-18 (40127) Motor Rotor Time Constant Value: 0.01 – 10.00 Seconds Default: 0.01
AFN-19 (40125) Motor Magnetizing Inductance Value: 0.000 – 20.000 Per Unit Default: 3.500
AFN-20 (40126) Motor Leakage Inductance Value: 0.000 – 0.500 Per Unit Default: 0.200
AFN-21 (40122) Motor Resistance Value: 0.000 – 30.000 Per Unit Default: 0.020
Advanced Functions AFN-17 through AFN-21 are motor model parameters used by the Sensorless Vector Control
method. These functions are set automatically by the Auto Tune function of the drive during commissioning. If
desired, and complete motor specifications are available from the manufacturer, these values can be entered
manually for even greater accuracy in sensorless control of the motor.