Chapter 6: Troubleshooting

6-1 Introduction

The utmost in safety precautions should be observed at all times when working on or around the machine and the electrical components. All normal trouble-shooting must be accomplished with the power off, line fuses removed, and with the machine tagged as out of service.

The use of good quality test equipment cannot be over-emphasized when troubleshooting is indicated. Use a good ammeter that can measure at least twice the AC and DC current that can be encountered for the machine. Be sure that the voltmeter has at least minimum impedance of 5,000 OHMS-per-volt on AC and 20,000 OHMS-per-volt on DC scales. Popular combination meters, VOM and VTVM can be selected to provide the necessary functions.

Before making haphazard substitutions and repairs when defective electrical components are malfunctioning, we recommend that you check the associated circuitry and assemblies for other defective devices. It is common to replace the obviously damaged component without actually locating the real cause of the trouble. Such hasty substitutions will only destroy the new component. Refer to wiring diagrams and schematics.

Locating mechanical problems, should they occur, is relatively straightforward. When necessary, refer to the parts catalog section.

Figure 51: Typical Troubleshooting Problems and Suggested Corrective Actions

 

Problem

 

Corrective action

 

 

 

Check to make sure that air is hooked up and the regulator gauge

 

 

 

reads at precisely 60 PSI.

 

Nothing happens when I push

 

Check that the access door to the mixer is shut properly.

 

“Start Blender”

 

 

 

 

Look on the Recipe Screen. If you see “Mixer Full”, then check

 

 

 

 

 

 

the mixer. If the mixer is not full, then check that the mixer prox

 

 

 

is adjusted properly (small screw on back).

 

 

 

 

 

“E-STOP has been Activated”

 

Check the E-Stop located on the front of the blender panel.

 

is shown

 

 

 

 

 

 

 

 

 

“Interface has been Locked” is

 

Click “Unlock” and enter in your User Password.

 

shown

 

 

 

 

 

I’ve forgotten my User

 

Contact the Service Department.

 

Password

 

 

 

 

 

 

 

 

 

POWER INTERRUPTION

 

Power was lost during a batch. Check your power source unless

 

ALARM

 

you intentionally killed the power during the batch.

 

 

 

 

 

PLC Battery Low

 

Change out the PLC with your spare and reprogram new unit.

 

 

Send old PLC back to manufacturer for repair.

 

 

 

 

 

 

 

Bulletin Number

Chapter 6: Troubleshooting

67 of 102

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Mitsubishi Electronics 882.00207.00 specifications Troubleshooting, Introduction
Page 67 Page 69

882.00207.00 specifications

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