HENNESSY INDUSTRIES COATS 1050

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Summary

Safety Notes

Voltage & Phase Checking Procedure

Functional Checks

Operational Check

Verifies basic balancer operation, display, spin cycle, and weight reading accuracy.

Accuracy Check (Plane Separation)

Tests the balancer's ability to accurately measure weights on both wheel planes.

Calibration Procedures

Weight Sensor Calibration

Calibrates weight sensors using a specified wheel and weight for accurate readings.

A & D Arm Calibration (Code 10)

Procedure to calibrate the A & D arm assembly using specific codes and measurements.

Stop-On-Top Calibration (Code 20;21)

Error Codes

General Operation Errors

Encoder and Communication Errors

Calibration and Dimension Errors

Speed and Motor Errors

*Function Codes

Calibration and Adjustment Codes

Codes for calibrating A&D arm, toggling stop-on-top, and fine-tuning adjustments.

Diagnostic and Test Codes

Codes for testing keyboard, display, encoder, and piezo output functions.

Troubleshooting Section for Models 950,1025,1050 & 1055 Balancers

Introduction to Troubleshooting Flow Charts

Fan Motor Does Not Run (Contactor Model)

Accuracy Problems (Plane Separation)

Rotational Problems (Contactor & Motor Controller Model)

Repeatability Problems (Contactor & Motor Controller Model)

Display Does Not Light (Contactor Model)

Balancer Does Not Cycle (Contactor Model)

Balancer Does Not Brake (Contactor Model)

A & D Arm Problems

Checking Procedures

*Bridge Rectifiers

*Optical Encoder (Code 44)

*Motor Circuit Testing

*Piezo Output

Piezo Output Codes (52 & 27)

Replacement Procedures Section for Models 950,1025, 1050, & 1055 Balancers

Front Panel;Printed Circuit Board Assembly Replacement

Instructions for replacing the front panel and PCB assembly.

Touch Panel;Aluminum Back Panel And PCB Assembly

Instructions for replacing the touch panel, back panel, or PCB assembly separately.

Contactor Coil Resistance Measurement

Procedure to measure contactor coil resistance before replacing the PCB.

A & D Arm Assembly

Drive Motor Assembly

Piezo Assembly

Repair Procedures for the A & D Arm Assembly

A Pulley Removal

A Pulley Installation;Adjustment (Code 10)

Steps to install and adjust the A pulley, including using calibration codes.

A Potentiometer Replacement

Procedure to replace the potentiometer for the A arm.

D Pulley Removal

D Pulley Installation;Adjustment (Code 10)

D Potentiometer Replacement

*950 Pro Racer

*950 Pro Racer Wiring Diagram

*950 Wiring Diagram (Contactor Style)

*1050 Wiring Diagram (Contactor Style)

*Solid State Wiring Diagrams & Troubleshooting Guides

*1050 Wiring Diagram (Motor Controller Style;Magnetic Switches)

*1050 Wiring Diagram (Motor Controller Style;Mechanical Switches)

*Display Does Not Light (Solid State Motor Controller Model)

*Balancer Does Not Cycle (Solid State Motor Controller Model)

*Balancer Does Not Brake (Solid State Motor Controller Model)

PCB Checklist Addendum

Diode Test

IC Test