Chapter 1: FT-70/75 System Overview
1-5
Rejection Control Basics
The FT-70/75 identifies and then tracks any container that fails
inspection. Tracking begins the moment the container crosses the
Inspection Trigger Beam in the and ends when the container
reaches the rejector centerline.
Figure 1-3.
Tracking containers that fail inspection.
To maintain container tracking and to synchronize the rejector to
the conveyor, the FT-70/75 uses a high-resolution encoder coupled
directly to the conveyor drive sprocket. The encoder sends timing
pulses to the FT-70/75 which uses the pulses to determine the
container’s position as it moves along the conveyor between the
FT-70/75 and the rejector. When the container reaches the rejector
centerline the FT-70/75 emits a reject signal which activates the
rejector and removes the container from the production line.
1
2
3
5
4
X
No.
Description
1
FT-70/75
2
Inspection Trigger Location
3
Extent of Tracking Area (gray)
4
Rejector Centerline
5
Rejector
Industrial Dynamics Company, Ltd. Document 40274-0600
