User Manual Instruction Manual

Parameter Descriptions

11-37

The Accel Time parameters set the rate at which the drive ramps to its output

frequency after a start command or during an increase in command frequency (speed

change). The rate established is the result of the following equation:

(Maximum Speed / Accel Time) = Accel Rate

Two accel times exist to enable acceleration rate changes “on the fly” using a building

automation system command or digital input, if configured.

Sets the rate of deceleration for all speed decreases.

(Max Speed / Decel Time) = Decel Rate

Two decel times exist to enable deceleration rate changes “on the fly” using a building

automation system command or digital input, if configured.

Enables/disables dynamic brake operation when drive is stopped. DB may operate

when drive is stopped. DB may operate if input voltage becomes too high.

Disabled = DB will only operate when drive is running.

Enabled = DB will only operate when the drive is energized.

140

141

Accel Time 1

Accel Time 2

Range: 0.0 to 3600.0 [0.1 sec]

Default: 10.0 secs

Access: 140=0

141=2

Path: Dynamic Control>Ramp Rates