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T4821114 Datasheet(PDF) 7 Page - Red Lion Controls. Inc |
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T4821114 Datasheet(HTML) 7 Page - Red Lion Controls. Inc |
7 / 8 page MULTIPLE UNIT/REMOTE SETPOINT APPLICATION Eight T48 controllers are used in a drying oven. Each T48 controls a zone within the oven. Depending upon the material to be dried, and its initial moisture content, the drying setpoint temperature varies. A master T48 controller transmits setpoint via linear DC output. This signal is received as a remote setpoint signal by the other slave controllers. Whenever the master controller’s setpoint is changed, the slave controller’s setpoint changes automatically. The remote setpoint input at each slave controller can be scaled independently. 7 OEM PAINT SPRAYER APPLICATION An OEM manufacturing spray painting equipment utilizes the T48 to maintain optimum paint temperature. In addition to the low cost, the 1/16 DIN package size permits the OEM to design temperature control into various sized painting equipment, from small hand sprayers to large paint booths. The heating element used to heat the paint, is connected to the Main Control Output (OP1) programmed for On/Off control. Alarm 1 is programmed as Band Inside Acting, so that as long as the paint temperature is within manufacturer’s specifications for temperature, the “GO” light is on. Alarm 2 is programmed as Band Outside acting so that the “NO GO” light is lit when the paint temperature is more than 12° outside the manufacturer’s specifications of 140 to 150°F. 11 12 14 13 10 9 8 7 6 5 4 3 2 1 USER INPUT COMM. TC + RTD AL2/O2 COMM. AL1 O1 N.O. (+) COMM. (-) AC POWER 85-250 VAC AC POWER POWER AC NO GO GO 13 14 12 11 10 9 8 7 6 5 4 3 2 1 OUT (-) OUT (+) 02/A2 (+) COMM (-) 01/A1 (+) USER INPUT COMM TC (+) RTD IN (+)IN (-) SLAVE CONTROLLER #1 TC (+) COMM (-) 49 01/A1 (+) 5 MASTER CONTROLLER 11 12 10 RTD IN (+) 02/A2 (+) OUT (+) OUT (-) 3 2 1 USER INPUT 13 14 IN (-) 8 7 COMM 6 TO HEATER ZONE #2 ZONE #1 HEATER TO 2ND INPUT ANALOG OUTPUT AC POWER 85 - 250 VAC AC POWER 85 - 250 VAC REMOTE SETPOINT SIGNAL TO OTHER HEATER ZONES PLASTICS EXTRUDER APPLICATION Several T48 controllers are employed to control the temperature of a plastics extruder. Each T48 controls a heating element and a cooling water solenoid to maintain each extruder zone at the desired temperature. The Heater Current Monitor option is used to provide a readout of the heater current. The multi-function User Input can be programmed to allow selection of manual operation when connected to common. This allows the user to hold the control output of the controller during abnormal process conditions. 11 12 14 13 10 9 8 7 6 5 4 3 2 1 AC POWER 85-250 VAC USER INPUT COMM. TC + A2/O2 N.O. COMM. A1 N.O. O1 N.O. (+) COMM. (-) SSR POWER UNIT 240V HEATER SUPPLY COOLING SUPPLY EXTRUDER COOLING WATER RTD OUTPUT HOLD 2ND INPUT OPTION IN (+) IN (-) 120V CT HEATER ALARM APPLICATION (Terminal assignments are model number dependent.) (Terminal assignments are model number dependent.) (Terminal assignments are model number dependent.) |
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