P.112), P.002) – Rockwell Automation FlexPak 3000 Digital DC Drive Version 4.3 User Manual

Page 39

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Configuring the Speed Reference

4-19

AUTO

MODE

RAMP

BYPASS

(P.112)

Bypasses the speed
loop S-curve block
while in auto mode. If
the drive is in manual
mode, this parameter
has no effect and the
S-curve block cannot
be bypassed.

Parameter Range:

OFF

ON

Default Setting:

OFF

Parameter Type:

Tunable

OIM Menu Path(s):

Drive Reference - Drive Reference Ramp

When

AUTO

RAMP

BYPASS

is

ON

and the drive is in auto mode, the speed loop ramp

function is bypassed. The bypass is automatically disabled during a ramp stop
sequence and the drive will always ramp to a stop.

!

ATTENTION: When switching from auto to manual or from manual to
auto, the drive will ramp to the reference level provided by the new source
at the rate specified by

ACCELERATION

TIME

(P.001) or

DECELERATION

TIME

(P.002). Be aware that an abrupt speed change might occur, depending
on the new reference and the rate specified in these parameters. Failure
to observe this precaution could result in bodily injury.

DECELERATION

TIME

(P.002)

Sets the minimum
time in which the
selected speed
reference can change
from

TOP

SPEED

(P.011) to 0.

Parameter Range:

0.1 to 300.0 seconds

Default Setting:

5.0 seconds

Parameter Type:

Tunable

OIM Menu Path(s):

Drive Reference - Drive Reference Ramp
Quick Start

If

TRIM

MODE

SELECT

(P.110) is set to

PROPORTIONAL

, the actual time to decelerate

might be modified by

DRAW

PERCENTAGE

OUT

(P.196). See section 4.2, Configuring

Trim.

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