Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set User Manual

Page 151

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Servo Parameters

Chapter 7

7-5

The servo parameters in the sections that follow are general servo
parameters. General servo parameters are those servo parameters that must

be set regardless of the type of servo hardware and type of servo loop you

have selected.

Function

This parameter tells the control the number of motors that will be

connected to the first servo module board on your 9/260 or 9/290 or the

total number of motors connected to your 9/230 or 9/440 CNC. Include

any motor that uses the DAC Output (typically the spindle).

Axis

Parameter

Number

All

[130]

Range

Selection

Result

Selection

Result

(a)

ONE

(d)

FOUR

(b)

TWO

(e)

FIVE

(c)

THREE

(f)

SIX

Notes

This is not a “per axis” parameter. The value entered here affects all axes.

If your 9/260 or 9/290 CNC requires only one servo module, then the total

number of motors for the system should be entered here. Figure 7.3 shows

a typical configuration for a 9/230. Figure 7.5 shows a typical

configuration for a 9/260 or 9/290.

Important: This parameter sets the total number of motors connected to a

servo board. If you intend to use other connectors on that servo board to

return multiple feedbacks for any motor, you do not count these feedback

connectors as motors. For example if you have two motors connected to a

four axis servo card and two feedbacks for each motor (one

motor--mounted encoder for velocity feedback and one linear slide for

position feedback) you would set this parameter at two even though you

will be using all four connectors on the servo card.

Each servo used for a split axis counts as one motor. Each servo of a dual

axis group also counts as one separate motor.

7.1

General Servo Parameters

7.1.1

Number of Motors on 1st

Board

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