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Sequencer mode - cut to length example, Sequencer mode - cut to length example -27 – Rockwell Automation 1746-HSCE,D17466.5 High-Speed Counter Module User Manual

Page 139

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Publication 1746-UM006B-EN-P - August 2005

Application Examples 6-27

Sequencer Mode - Cut to Length Example

In this example, flat steel is fed into a cutter. Using the Sequencer
Mode, it is cut to a specific length. The application consists of a motor,
motor interface, encoder, clutch/brake, and cutter.

A quadrature encoder is connected directly to the motor shaft. It sends
pulses to the module. The module controls the motor interface.

The motor interface controls the motor speed, the user program
enables the motor. When O:1/0 is energized, the motor is enabled.
The motor operates in two speeds, low and high. When the output
(O:1/1) is energized, the motor is running in high-speed mode.

The clutch/brake has two states. The clutch is engaged when O:1/2 is
energized. Engaging the clutch feeds the steel into the cutter. The
brake is engaged when O:1/2 is de-energized.

The cutter is controlled by the module and is self retracting when the
power is off. It also has its own end of travel mechanism.

SLC 5/02
Processor

High-Speed Counter
Module

Cutter

Motor Enable O:1/0

Motor Speed O:1/1

Cutter Interface O:1/3

Motor

Motor Interface

Encoder

A+A B+B

Clutch/Brake O:1/2

Clutch/Brake

Feed Direction