User guide

14-2 Conveyors

Item Description

1 Part sensor

2Stop pin

Figure 14-2 Typical Single-Lane Conveyor Configuration (impingement heaters)

Theory of Operation

This theory of operation is designed to include all of the basic features and functions of the conveyor on a

typical Century Series C-721 dispensing system. All configurations have been taken into consideration.

However, depending upon application requirements and system configuration, your specific operation

may vary.

Operation

When your system was installed by an Asymtek service engineer, part of the installation procedure

included the downloading of a conveyor atom. The conveyor atom is an Automove Control Language

(ACL) file that contains the software commands that control your conveyor. This file is downloaded to

the 201 (W) Conveyor Controller Module, located in the rear of your system, from the Fluidmove for

Windows NT (FmNT) dispensing software. During system operation, FmNT uses the conveyor atom

information to communicate with the Conveyor Controller Module to coordinate part handling.

The part is loaded into the pre-dispense zone.

A sensor detects its presence, indexes the part, and sends a message to the FmNT software. A stop pin

blocks the conveyor path to keep the part in the pre-dispense zone.

The part is heated.

For systems with contact or impingement heaters in the pre-dispense zone, a lift table underneath the

heating plate rises up to the part. Contact heaters have vacuum holes on the plate surface to hold the part

in place. Impingement heaters require an adjustable board support to hold the part in place.

The timers are enabled.

Timers can be used to keep the part in the pre-dispense zone for a specified amount of time. When the

timer expires, the conveyor sends an “Are you ready?” message to the FmNT software. If the dispense

zone is not ready, the part remains in the pre-dispense zone. If the dispense zone is ready to accept the

part, FmNT issues a “Ready” message back to the conveyor. The stop pins withdraw from the conveyor

path, the lift table lowers and the part is conveyed into the dispense zone.