Sterling 882.00255.00 CV3-655 specifications General Troubleshooting

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