2-3 Standard Features

Mechanical Features

Time-fill Capability. The length of time allowed for material to drain from the station to its receiver. During this time, the controller does not attempt to deliver any more material to the station.

Volume-fill Capability. The length of time a station’s vacuum valve remains open to allow material to be drawn in. The vacuum valve will close when material covers the station’s volume-fill proximity sensor or this time elapses, whichever comes first.

Vent Valve Output. The vent valve protects the pump motor from damage during high vacuum conditions if an undetected failure of the vacuum switch should occur. The vent valve limits system vacuum by allowing a plunger in the valve to shift and vent the pump.

Closed-Loop Conveying. This feature allows material to be conveyed and processed without being contaminated by outside influences (such as dust, other materials, etc.).

Common Purge Valve Output Control for Each Pump. This feature allows any remaining material to be cleaned out of the vacuum pump or station.

Local Blowback Filter Cleaning Outputs. When this feature is enabled, the controller periodically sends compressed air backward through the pump’s air filter to dislodge accumulated dust and debris.

Electrical Features

115/1/60 supply voltage

24 VDC control voltage

Single-point power and ground connection

Non-fused disconnect switch, lockable

Branch circuit fusing

Fully accessible NEMA 12-style electrical control enclosure

Controller Features

Mitsubishi brick PLC icon based, 6” color touch screen controller

Monitors Station status and Pump status

Allows operator to transfer stations to a standby pump when a pump fails

Electronic time delay between pump startups to prevent an excessive power demand at your facility

4 –Pump 38-Station Controllers

Chapter 2: Functional Description

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Sterling Plumbing 882.00253.00 Standard Features, Mechanical Features, Electrical Features, Controller Features

882.00253.00 specifications

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