Feature select, Dwell frequency, Dwell time – Rockwell Automation 1336Z SPIDER - FRN 2.xxx-5.xxx User Manual

Page 91: Speed control, Slip @ f.l.a

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Programming

7–19

Feature

Select

This group contains the necessary parameters to activate and program advanced features
of the drive.

[Dwell Frequency]

This value sets the frequency that the drive will
immediately output (no Accel Ramp) upon a start
command. This parameter requires a programmed [Dwell
Time].

Parameter Number

43

Parameter Type

Read and Write

Display Units / Drive Units

0.1 Hertz / Hertz x 10

Factory Default

0.0 Hz

Minimum Value

0.0 Hz

Maximum Value

7.0 Hz

[Dwell Time]

This value sets the time the drive will continue to output
[Dwell Frequency] before ramping to [Freq Command].

Parameter Number

44

Parameter Type

Read and Write

Display Units / Units

1 Second / Seconds

Factory Default

0 Sec

Minimum Value

0 Sec

Maximum Value

10 Sec

[Speed Control]

This parameter selects the type of speed modulation active
in the drive.

This parameter cannot be changed while the drive is
running.

Important: “No Control” and “Phase Lock” are the only
available options for synchronous motors.

If encoder feedback closed loop speed regulation is
required, “Encoder Fdbk” must be selected.

Parameter Number

77

Parameter Type

Read and Write

Factory Default

“No Control”

Units

Display Drive

“No Control” 0

Frequency regulation

“Slip Comp” 1

Slip compensation

“Speed Droop” 2

Negative slip compensation

“Phase Lock” 3

Enable phase lock to pulse input

“Encoder Fdbk” 4

Encoder feedback-closed loop

“Droop + Reg” 5

Enc. fdbk.-closed loop w/ active
droop

“P Jump” 6

Traverse function

“Process PI” 7

Closed loop PI control

[Slip @ F.L.A.]

This value sets the amount of automatic increase or
decrease to the drive output to compensate for motor slip.
When [Speed Control] is set to “Slip Comp”, a percentage
of this value proportional to output current is added to the
drive output frequency. When [Speed Control] is set to
“Droop”, a percentage of this value proportional to output
current is subtracted from the drive output frequency.

Parameter Number

42

Parameter Type

Read and Write

Display Units / Drive Units

0.1 Hertz / Hertz x 10

Factory Default

1.0 Hz

Minimum Value

0.0 Hz

Maximum Value

10.0 Hz

Dwell Time

Frequency of

Applied Voltage

0

0

Time

Maximum

Dwell Frequency

Start
Command

Dwell

Time

Sync RPM – Rated RPM

Sync RPM

x Rated Hz.

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