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Drying System, IR and Temp Control

Drying System, IR and Temp Control. XL1500 Drying System. Components. The drying system system includes the following parts: IR lamps (400w) Fans 230v contactor Temperature controller Temperature sensor Thermo sensors. Process.

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Drying System, IR and Temp Control

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  1. Drying System, IR and Temp Control

  2. XL1500 Drying System Confidential

  3. Components • The drying system system includes the following parts: • IR lamps (400w) • Fans • 230v contactor • Temperature controller • Temperature sensor • Thermo sensors Confidential

  4. Process • The printed substrate moves under the drying system (IR). • When the printed substrate is exposed to the IR lamps, the drying process begins. • The fans work all the time (turned on/off by CB F8). The fans operate so that the warm air does not reach the print heads in order to avoid the heads from clogging. • The fans help to avoid damage to the substrateby cooling it down. • To provide the better drying, the exhaust pipes evacuate the warm air from the drying area (the exhaust system requirements are described in the XL1500 Site Preparation Guide). Confidential

  5. System Requirements • The IR assy requires a 3-phase 230 VAC. • The IR is controlled by the temperature controller located in the PDU. • Fans are turned on/off via CB F8 located in the PDU. • The IR temperature controller receives 24 VDC from P5 in the PDU. • When the current temp. is higher then the temp. set point., 24 VDC is supplied to SSR 1,2,3 via fuse F16 that protects SSRs from overheating. • The signal to activate the IR comes via P4(short between pin 1 and 5). Confidential

  6. System Requirements (Cont.) • IR lamps work only if : • Fans are working • 230 V hood contactor is activated. • All the thermo sensors are shorted and not indicating when the temperature exceeds 120°C. • 3 SSR’s (90A) are located inside the PDU and responsible for the IR’s working. Confidential

  7. Examples Thermo sensor inside the IR assy 4 SSR’s inside the PDU Confidential

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