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2 parameter settings for applications, 2 parameter settings for applications -12 – Delta Electronics AC Motor Drive VFD007S23A User Manual

Page 67

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Chapter 5 Parameters|VFD-S Series

5-12

Revision August 2006, SE08, SW V2.61

5.2 Parameter Settings for Applications

Speed Search

Applications Purpose

Functions

Related

Parameters

Windmill, winding
machine, fan and all
inertia loads

Restart free-
running motor

Before the free-running motor is
completely stopped, it can be restarted
without detection of motor speed. The
AC motor drive will auto search motor
speed and will accelerate when its
speed is the same as the motor speed.

8-06

8-07

DC Braking before Running

Applications Purpose

Functions

Related

Parameters

When e.g. windmills,
fans and pumps rotate
freely by wind or flow
without applying power

Keep the free-
running motor at
standstill.

If the running direction of the free-
running motor is not steady, please
execute DC braking before start-up.

8-00

8-01

8-17

Multi-step Operation

Applications Purpose

Functions

Related

Parameters

Conveying machinery

Cyclic operation by
multi-step speeds.

To control 7-step speeds and duration
by simple contact signals.

4-04~4-08

5-00~5-06

Switching acceleration and deceleration times

Applications Purpose

Functions

Related

Parameters

Auto turntable for
conveying machinery

Switching
acceleration and
deceleration times
by external signal

When an AC motor drive drives two or
more motors, it can reach high-speed
but still start and stop smoothly.

1-09~1-12

4-04~4-08

Operation Command

Applications Purpose

Functions

Related

Parameters

General application

Selecting the
source of control
signal

Selection of AC motor drive control by
external terminals, digital keypad or
RS485.

2-01

4-04~4-08