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Transcript
Datasheet SC-PTA2 Digital Pulse Input to 0-10VDC Output Only Overview A timed contact or solid state closure from the controlling microprocessor controller is converted to a linear analog output with 255 steps of resolution. The SC-PTA2 has a jumper selectable manual override which will allow modulation of the output between 0-10VDC to verify proper operation of the controlled device. Product Specifications Supply Voltage—————————————————————————————————— 24 VAC or 24 VDC +/- 10%, 50/60 Hz Supply Current————————————————————————————————————————————————— 135 mA maximum Power Consumption————————————————————————————————————————————————————— 3.24W Input Signal Source———————————————————————————— Relay contact closure, transistor, or TRIAC 12-24VAC/VDC signal trigger level or dry contact to common, 1 millisecond minimum between “ON” pulses Select at J2 Input Trigger Level: ⎕⎕ Normal Mode—————————————————————————————————————————————— 5 to 26.4VDC / VAC ⎕⎕ TRIAC Mode——————————————————————————————————————————————————— 9 to 26.4 VAC ⎕⎕ Using Rectified DC Power Output————————————————————————————————————— 21 to 37VDC Input Impedance: ⎕⎕ VAC—————————————————————————————————————————————————————— 900 ohms nominal ⎕⎕ VDC————————————————————————————————————————————————————— 1500 ohms nominal Ranges: ⎕⎕ Version #1—————————————————————————————————————————————————— 0.02 to 5 seconds 0.1 to 10 seconds 0.59 to 2.93 seconds 0.1 to 25.5 seconds ⎕⎕ Version #2—————————————————————————————————————— 0 to 10 seconds Duty Cycle Pulse 0.023 to 6 seconds Output Voltage————————————————————————————————————————————————————— 0 to 10 VDC Output Impedance—————————————————————————————————————————————— 400 ohms minimum Accuracy—————————————————————————————————————————————————————————————— +/- 5% Rectified DC Power Output———————————————————————————— 21-37 VDC (for Input Trigger only), ——————————————————————————————————— Range dependant on if AC or DC power is supplied Operating Temperature————————————————————————— 0 to 48.9 degrees C (32 to 120 degrees F) Operating Humidity——————————————————————————————————————— 5% to 95% non-condensing Dimensions—————————————————————————————————————————————— 2.20” L × 2.25” W × 1.0” H Parts SC-PTA—————————— 0.2 to 5 seconds, 0 to 10 seconds, 0.59 to 2.93 seconds, 0.1 to 25.5 seconds SC-PTA Version 2———————————————————————— 0 to 10 seconds Duty Cycle in 10 second window 0 to 25.5 seconds Duty Cycle in 25.5 second window 0.023 to 6 seconds Specifications subject to change without notice. Distech Controls, and the Distech Controls logo are trademarks of Distech Controls Inc. All other trademarks are property of their respective owner. ©, Distech Controls Inc., 2015. All rights reserved. 2/2 05DI-DSSCPT2-10