AEC 1-Pump 1-Station Controller - Manual (Page 18)

1 –Pump 1-Station Controller Chapter 4: Operation 17 of 30
Chapter 4: Operation
4-1 Overview
Your 1-pump, 1-station controller sends a control shift signal to a compressed air-operated
valve. The valve directs airflow for material conveying, material dumping, and idle position.
A vacuum switch and a mechanical vacuum relief valve can be used to protect the vacuum
pump and motor from high amp draw damage.
The conveying cycle is determined by signals from a sensor mounted in the vacuum receivers
and interpreted by the controller. The controller monitors current system status and sends the
convey signal to the system until material levels send a signal to the controller to stop
conveying.
This section provides the procedures necessary for using your controller.
Note: Before you carry out any of the procedures in this chapter, the system must
be set up as described in Chapter 3.
4-2 Startup
Pre-Startup Checks
Before operating the single-station controller or any other part of your conveying system,
check these items:
1. Verify that all components in the system are installed securely and ready to operate.
Refer to the instructions supplied with auxiliary equipment for specific checks.
2. Make sure that couplers, fittings, attachments, and flexible lines are securely attached
and are vacuum-tight.
3. Verify that all electrical and compressed air connections to the vacuum pump/blower
package are complete, tight, and safe.
4. Fill the vacuum pump blower gearbox with oil, based on the manufacturer’s
instructions included in your Customer Information Packet.
Caution! Do not overfill the geabox. Too much oil can damage the blower.
5. If you haven’t already done so, remove the plastic plug from the air inlet.
WARNING! KEEP HANDS AWAY FROM THE OPEN AIR INLET TO AVOID INJURY!
6. Verify that no loose parts, tools, or foreign materials are in or near the unit or other
system components.
7. Turn off the compressed air supply, switch on the power at the external fuse box or
disconnect, and move the main power on the control enclosure to the ON position.
8. Using the ON/OFF switch, turn on the pump just long enough to verify that the motor
is rotating in the proper direction.