Delta VFD4A8MS21ANSAA User Manual

Chapter 12 Descriptions of Parameter SettingsMS300
434

11-14
ASR Output Low Pass Filter Time
Default: 0.008
Settings
0.000–0.350 sec.
 Sets the ASR command filter time.

11-15
Notch Filter Depth
Default: 0
Settings
0–20 dB

11-16
Notch Filter Frequency
Default: 0.00
Settings
0.00–200.00 Hz
 Sets the resonance frequency of the mechanical system. Adjust it to a smaller value to suppress
the mechanical system resonance.
 A larger value improves resonance suppression function.
 The notch filter frequency is the mechanical frequency resonance.

11-17
Forward Motor Torque Limit

11-18
Forward Regenerative Torque Limit

11-19
Reverse Motor Torque Limit

11-20
Reverse Regenerative Torque Limit
Default: 500
Settings
0–500%
 FOCPG and FOC Sensorless mode:
 The motor rated current = 100%. The settings for Pr.11-17–Pr.11-20 compare with the Pr.03-00 =
7, 8, 9, 10. The minimum value of the comparison result is the torque limit. The diagram below
illustrates the torque limit.
 TQCPG and TQC sensorless mode:
 The function of Pr.11-17–11-20 is the same as FOC; however, in this case, the torque limit and
the torque command executes the output torque limit at the same time. Therefore, the minimum
value between Pr.11-17–11-20 and Pr.06-12 becomes the current output torque limit.
 Refer to Pr.11-34 for calculation equation for the motor rated torque.

Delta VFD4A8MS21ANSAA Specifications

General

Brand	Delta
Model	VFD4A8MS21ANSAA
Category	DC Drives
Language	English