Specifications

3-4 Maintenance
Conveyor Incremental Encoder Adjustment
The Conveyor Incremental Encoder returns an accurate measurement of conveyor speed to the PLC. In
the TC oven, the encoder uses a close loop control to ensure the accuracy of the conveyor speed.
Replace the encoder if it is damaged or the speed measurement is inaccurate.
Various conveyor speeds can be used depending on the encoder installed. Table 3-2 lists the available
encoder options.
Table 3-2 Optional Encoders
CONVEYOR SPEED ENCODER PART NUMBER DESIGNATION
80-400 050865 Encoder 360 pulses
160-800 (STANDARD) 050864 Encoder 200 pulses
300-1500 049615 Encoder 100 pulses
CAUTION!
To replace the Conveyor Incremental Encoder:
For ovens built before May 2006, the speed measurement is controlled by an
inductive sensor (VIT’s part number: 007546)
1. Remove the right hood in front of the machine, at the exit of the oven.
2. Fix the elastic couplings on the encoder and on the shaft.
3. Attach the encoder to the support bracket on the frame.
4. Plug the encoder jack into the female jack.
5. Turn the conveyor on and ensure that the encoder and shaft are properly aligned.
6. Verify the speed value on the control screen is correct.
Figure 3-2 Conveyor Counter Cell Location
7. Check again to make sure the cell detects each tooth of the gear.
8. Recalibrate the close loop of the conveyor and check that the real speed of the conveyor is
equal to the calculated speed by the PLC.
9. Replace the access cover.
Support Bracket
Shaft
Encoder
Elastic Coupling