Delta VFD2A8MS21ANSAA

Chapter 12 Descriptions of Parameter SettingsMS300
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 3 (auto-acceleration and auto-deceleration–decelerating by the actual load): the drive auto-
detects the load torque and automatically accelerates from the fastest acceleration time and
smoothest start-up current to the setting frequency. During deceleration, the drive automatically
determines the loaded regenerative energy to steadily and smoothly stop the motor in the fastest
deceleration time.
 4 (stall prevention by auto-acceleration and deceleration–reference to the acceleration and
deceleration time settings): if the acceleration and deceleration time are within a reasonable
range, the actual acceleration and deceleration time refer to the Pr.01-12–01-19 settings. If the
acceleration and deceleration time are too short, the actual acceleration and deceleration time
are greater than the acceleration and deceleration time settings.
01-45
Time Unit for Acceleration and Deceleration and S-Curve
Default: 0
Settings
0: Unit 0.01 sec.
1: Unit 0.1 sec.

01-46
CANopen Quick Stop Time
Default: 1.00
Settings
Pr.01-45 = 0: 0.00–600.00 sec.
Pr.01-45 = 1: 0.0–6000.0 sec.
 Sets the time required to decelerate from the maximum operation frequency (Pr.01-00) to 0.00
Hz through the CANopen control.
01-49
Regenerative Energy Restriction Control Method
Default: 0
Settings
0: Normal deceleration
1: Over voltage energy restriction
2: Traction energy control (TEC)
 0: decelerate or stop in accordance with the original deceleration setting.