Over to zero as it passes the camtable length – Rockwell Automation 2098-IPD-020-DN Ultra5000 Series Intelligent Positioning Drives with DeviceNet Reference Manual User Manual

Page 53

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Publication 2098-RM002A-EN-P – October 2001

Programming Reference

4-29

77

Get

Camtable Order

DINT

4

Each of the segments of an Ultra5000 cam table

is defined by a polynomial equation, such as:

Output position = A + B*(Input Position) + C*(Input

Position)^2 +…

The Camtable Order is the highest order term in

the right side of this equation. All of the

segments in a cam table must have the same

order. When Ultraware generates a cam file it

generates first order equations when the cam

table is a linear type, and 5th order equations

when the cam table is a polynomial type. A 5th

order polynomial provides sufficient

degrees-of-freedom to allow Ultraware to

constrain the positions, velocities, and

accelerations at the ends of each segment.

78

Get

Camtable Length DINT

4

cnts

The maximum value of Cam Input Position in the

cam table.

79

Get

Camtable Offset

DINT

4

cnts

The ending output position defined in the cam

table.

80

Set

Gear Enable

Command

USINT

1

Causes the gear to begin generating output - and

motion - in response to input received from the

Master Encoder (or ratchet).

0 = No Action (default)

1 = Execute Command

81

Set

Gear Disable

Command

USINT

1

Causes the gear to stop generating output.

0 = No Action (default)

1 = Execute Command

82

Set

Gear Ratio

REAL

4

The number of counts the motor should move for

each master encoder count received (in Motor

Counts per Master Count). Not saved in

non-volatile memory.

Range: -2147483520 to 2147483520

Default: 0

83

Set

Gear Slew

USINT

1

If “Enabled”, the gear ratio will ramp up or down

using the acceleration and deceleration specified

below. If “Disabled” the acceleration and

deceleration are effectively infinite.

0 = Disable (default)

1 = Enable

84

Set

Gear Slew Accel REAL

4

ratio/ sec

If the gear is enabled while the gear input is in

motion, or the gear ratio is changed to a greater

value. The gear ratio will ramp up to the specified

value at this rate.

Range: 0 to 3.4e10

Default: 0

Parameter Object,

Instances ID 1- 340
Parameter

Instance

Access

Rule

Parameter

Name

Data

Type

Data

Size

(Bytes)

Units /

Scale

Description

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