Automated Triggering System Automatic triggering system controls rotary atomizer and spray gun trigger points. Features and Benefits Automatic control of spray device trigger points for paint savings and a cleaner operation Controls spray guns and rotary atomizers for enhanced production flexibility Standard system programming accommodates a wide range of production requirements Conveyor encoder resolution can be adjusted to meet varying system layouts Password access to selected programs prevents unauthorized changes to programming Built-in eeprom memory preserves set points in the event of a power failure High-voltage test switch permits voltage-level monitoring when the system is not in use Front-panel on/off switches for easy operator access Modular system configuration interfaces with other paint system components such as paint heater controllers, fire-detection systems, motor start/stop unit and color-change unit The Nordson Automated Triggering System (ATS) provides effective control of rotary atomizer and spray gun trigger points in automated finishing systems. Precise control of spray device triggering can substantially reduce paint waste and clean-up costs by spraying only when parts are within range of the spray devices. The system can control triggering of up to four spray devices in up to two spray stations. The Automated Triggering System includes an operator interface, PLC controller, one or two photocells (depending on spray line configuration), and a conveyor encoder. Two photocells cover two different vertical zones, allowing for a wide variety of part and conveyor arrangements. The operator enters trigger points and delay on/delay off times in the operator interface terminal. As parts pass through the photocells, a signal is sent to the PLC, which triggers the spray devices on as the leading edge of the part approaches the spray devices. The spray devices trigger off as the trailing edge of the part passes the spray devices. When used with rotary atomizers, the system controls paint triggering, solvent cleaning burst, pre-burst of paint after solvent flush and high-voltage triggering. All are easily adjusted through the operator-interface keypad. Adjustability of triggering points is critical when coating non-standard parts and multiple-part configurations.

Automated Triggering System For paint systems with more than four spray devices, additional control stations can be added. The control stations are connected in series, and do not require additional encoders or photo cells. System timing is maintained with a conveyor encoder. A typical encoder setting which sends a pulse to the PLC for every inch of conveyor travel will accommodate line speeds of up to 50 feet per minute. This feature maintains proper trigger points regardless of changes in line speeds. The resolution of the encoder can be adjusted to provide more or less distance between pulses...