Encoder feedback, Speed control, Encoder type – Rockwell Automation 1336Z SPIDER - FRN 2.xxx-5.xxx User Manual

Page 121: Encoder ppr, Maximum speed, Motor poles

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Programming

7–49

Encoder

Feedback

Encoder feedback is not available with the 1336 spider drive. The parameters are
listed for reference only.

[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: 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

[Encoder Type]

This parameter selects the feedback encoder signal type.
The drive can accept single channel (Pulse) or dual
channel (Quadrature) signals.

This selection must match the type of encoder being used.
If “Pulse” is selected and a dual channel encoder is wired,
the feedback indication will be incorrect by a factor of 2
and no direction indication will be offered. If “Quadrature”
is selected and a single channel encoder is wired, the
feedback value will always be zero.

This cannot be changed while drive is running.

Parameter Number

152

Parameter Type

Read and Write

Factory Default

“Quadrature”

Units

Display Drive

“Pulse” 0

Single channel encoder

“Quadrature” 1

Dual channel encoder

[Encoder PPR]

This parameter contains the scaling factor for encoder
feedback speed regulation. Enter the actual encoder
pulses per revolution

Parameter Number

46

Parameter Type

Read and Write

Display Units / Drive Units

Factor / Pulses per Rev

Factory Default

1024 PPR

Minimum Value

1

Maximum Value

4096

[Maximum Speed]

This Parameter sets the output frequency at full frequency
reference for:

1.Encoder feedback speed regulation.

2.All analog inputs to TB2 (remote pot, 0-10V & 0-20 mA).

NOTE: [Maximum Freq.] must be raised to allow operation
or modulation above [Maximum Speed].

Parameter Number

151

Parameter Type

Read and Write

Display Units / Drive Units

1 Hertz / Hertz x 10

Factory Default

400 Hz

Minimum Value

0 Hz

Maximum Value

400 Hz

[Motor Poles]

This parameter contains the number of motor magnetic
poles. This value translates output frequency into actual
motor RPM during closed loop operation. It is calculated
from [Motor NP Hertz] and [Motor NP RPM].

Parameter Number

153

Parameter Type

Read Only

Display Units / Drive Units

1 Poles / Poles

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