Chapter 7: Troubleshooting

7-1 General Troubleshooting

Problem

Possible cause

Solution

 

The controller panel is not

Plug in the controller panel.

The controller panel doesn’t light

connected to a power source.

 

Fuse/circuit breaker in the power

 

up at all.

Replace/reset.

drop is blown/tripped.

 

 

 

Broken controller power switch.

Replace.

 

The motor circuit breaker/

Reset the circuit breaker and

A pump package doesn’t run,

check the motor for the proper

overload has tripped.

amp draw on tag.

even though it is on line and its

 

Main fuse in power drop circuit

Replace the fuse/reset circuit

indicator is lit.

breaker has blown.

breaker.

 

 

Motor contact is faulty.

Repair or replace as required.

 

The bin below it is full if its

Normal operation. When the

 

level drops, material conveys to

 

amber indicator light is off.

 

the hopper.

 

 

A vacuum hopper is being

The hopper is off line.

Using the controller, place the

hopper on line.

 

bypassed in the loading cycle.

The field-installed station bypass

Normal operation. Set the switch

 

switch is simulating a Bin Full

so the hopper is back in the

 

condition.

loading sequence.

 

The field-installed station bypass

Repair, replace, or rewire.

 

switch is bad or mis-wired.

 

 

 

Conveying times are too long

Time the hopper(s) during

 

loading, and set conveying times

 

(Time Fill mode only).

 

to a few seconds less.

 

 

Vacuum hoppers are over-filling.

Maximum conveying times are

Check proximity sensors for

proper operation. Repair as

 

too long and/or the controller

 

needed. Reset the conveying

 

does not recognize the Hopper

 

times to a reasonable value, and

 

Full proximity switch(es).

 

adjust as needed.

 

 

Controller blows fuses.

Power supply shorting out.

Repair shorting circuit.

Improper fuse installed.

Replace fuse with one that has a

 

proper rating.

 

 

24-Pump, 128-Station Controller

Chapter 7: Troubleshooting

71

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Sterling 882.00255.00 CV3-655 specifications General Troubleshooting