27 soft start (s-curve) characteristics, 28 speed search – Yaskawa GPD503 Drive User Manual

Page 77

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2.27 SOFT START (S-CURVE) CHARACTERISTICS

Sn-06: Operation Mode

Digits 1 & 2 [ X X X X ] : Soft Start

Select 3

Characteristics

Setting of these two digits
determines the S-curve
(starting) characteristics
of the acceleration ramp.

X X

0 0

= S-curve time

of 0.2 seconds

X X

0 1

= S-curve

disabled

X X

1 0

= S-curve time

of 0.5 seconds

X X

1 1

= S-curve time

of 1.0 seconds

2.28 SPEED SEARCH

A.

Sn-15 thru Sn-18: Multi-

Data

61

: Speed Search From Max Frequency

function Input Terminals

Data

62

: Speed Search From Set Frequency

A multi-function input terminal is utilized to activate speed search. When the external
speed search command is closed, the base is blocked for 0.5 second, then the speed
search is made. The operation depends on the set value.

IMPORTANT

Set values

61

and

62

CANNOT be selected in combination.

• When

61

is set, the speed search begins with the maximum

frequency.

• When

62

is set, the speed search begins with the frequency

command that has been set after the search command was
received.

RUN

FREQ

COMMAND

0

TIME

S-Curve Characteristics

Time (T

SC

)

OUTPUT

FREQUENCY

Accel ramp per
selected Accel Time
(bn-01 or bn-03)

2-42

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