Toshiba W7 manual Acceleration Time #1, Accel #2 Time

Time #2

Time #1

Acceleration Time #1 Accel #2 Time

Acceleration Time #1

Program Fundamental Parameters Fundamental #1 Accel

This parameter⇒specifies the programmed ⇒⇒time in seconds for the output of the ASD to go from 0.0 Hz to the Maximum Frequency for the #1 Acceleration profile. The accel/decel pattern may be set using Accel/Decel #1 Pattern. The minimum and maximum accel/decel time may be set using S-Pattern Lower Limit Adjustment and the S-Pattern Upper Limit Adjustment.

Note: An acceleration time shorter than the load will allow may cause nuisance tripping and mechanical stress to loads.

Automatic Accel/Decel and Stall settings may lengthen the acceleration time.

Acceleration

The acceleration rate of a motor is determined by several factors: applied power, applied load, and the physical properties of the motor (winding parameters, motor size, etc.). The ASD will control the first of these factors: input power. The settings of the ASD control the frequency and amplitude of the applied voltage to the motor.

Under most operating conditions, as the output frequency of the ASD goes up so does the output voltage (linear acceleration). The ASD has the ability to modify the relationship between frequency and voltage automatically to produce smoother operation or increased (starting) torque.

Parameter Type — Numerical

Factory Default — (ASD-dependent)

Changeable During Run — Yes

Minimum — 0.1

Maximum — 6000

Units — Seconds

Accel #2 Time

Program Fundamental Parameters Fundamental #2 Accel

This parameter⇒specifies the programmed ⇒⇒time in seconds for the output of the ASD to go from 0.0 Hz to the Maximum Frequency for the #2 Acceleration profile. The accel/decel pattern may be set using Accel/Decel #2 Pattern. The minimum and maximum accel/decel time may be set using S-Pattern Lower Limit Adjustment and the S-Pattern Upper Limit Adjustment.

This setting is also used to determine the acceleration rate of the Motorized Pot function.

Note: An acceleration time shorter than the load will allow may cause nuisance tripping and mechanical stress to loads. Automatic Accel/Decel and Stall settings may lengthen the acceleration time.

Parameter Type — Numerical

Factory Default — (ASD-dependent)

Changeable During Run — Yes

Minimum — 0.1

Maximum — 6000

Units — Seconds

52 W7 ASD Installation and Operation Manual