Chapter 7: Troubleshooting

7-1

General Troubleshooting

 

Problem

 

Possible Cause

Solution

The control panel doesn’t light up at

The control panel is not turned on.

Turn on the control panel.

all

 

 

 

 

 

 

 

 

 

The external disconnect

Close the switch (on).

 

 

(recommended) in the dedicated

 

 

 

circuit is open (off).

 

 

 

Fuse/circuit breaker in the power

Replace/reset.

 

 

drop is blown/tripped.

 

 

 

Control power switch is broken.

Replace.

The touch screen display doesn’t

Fuse in display is blown.

Replace.

come on when the control panel is

Loose wiring to display.

Repair.

powered up.

 

 

 

 

Display is faulty.

Replace.

 

 

A pump package doesn’t run, even

The motor overload has tripped.

Reset the overload and check the

though it is on-line and its indicator

 

motor for the proper amp draw on

is lit.

 

 

tag.

 

 

Main fuse in power drop or optional

Replace the fuse.

 

 

fused disconnect has blown.

 

 

 

Motor contact is faulty.

Repair or replace as required.

A vacuum receiver is being by-

The hopper is off-line.

Use the controller to put the vacuum

passed in the loading cycle.

 

receiver on-line.

 

 

The convey time for the hopper is

Use the controller to enter a longer

 

 

set to zero.

convey time.

 

 

The field-installed station bypass

Normal operation. Set the switch so

 

 

switch is simulating a Bin Full

the vacuum receiver is back in the

 

 

condition.

loading sequence.

 

 

The field-installed station bypass

Repair, replace, or re-wire.

 

 

switch is bad or mis-wired.

 

 

 

The vacuum receiver was assigned

Repeat the setup procedure.

 

 

to the wrong pump during setup.

 

Vacuum hoppers are overfilling.

Conveying times are too long (Time

Time the vacuum receiver (s) during

 

 

Fill Mode only).

loading, and set the conveying times

 

 

 

to a few seconds less.

 

 

Maximum conveying times are too

Check proximity sensors for proper

 

 

long, and the PLC does not

operation and proper wiring to the

 

 

recognize the Vacuum Receiver Full

PLC. Repair as needed. Reset the

 

 

Proximity Switch(es).

conveying times to a reasonable

 

 

 

value, and adjust as needed.

3–Pump 33-Station Controllers

Chapter 7: Troubleshooting

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Sterling Plumbing 882.00252.00, CV3-635 specifications General Troubleshooting
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882.00252.00, CV3-635 specifications

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