Input/Output Transducers

TRIATEK's AD-1300 Series Ana.og inout to Tri-State Output accepts a mADC or VDC signal from an autornation or control sys-tem.compares that reading to the feedback potentiometer reading and sets the Tri-State output. The three output states can be eitherincrease (to open valve), decrease no dose valve) or no action (to keep valve at current position).

The feedback potentiometer input serves as a reference for the controller to insure that actuator position matches the control signal. When the module receives an ana-log input which is different from the setpoint reflected by the feedback

potentiometer, the module auto-matically increments or decrements until the reference potentiometer reflects a position caned for by the control system. This action is sometimes called Forward Reverse switching with center-off action, Field adjustable potentiometers areprovided to tune the position con-troller for various actuator travel requirements or position- settings on other types of actuators The feed-back potentiometer leeas can be reversed for reverse action.

LEDs on the unit indicate that power is present as well as visual increment and decrement output status.

A No-Feedback version is available for use with systems that can output a control signal as low value (e.g., decrement) or high value (e.g., increment' for a con-trolled period and controlled inter-val. Output must rest at a dead-band value for a programmed time interval while waiting for feedback from the process being controlled.

This unit has Triac outputs ratedat120VAC,4ampandcapa-ble of driving valves, actuators, contactors. or motor starters for a variety of control applications. The control input signal is ground loop isolated from the power supply input and triac output.

AD-1300

Analog Input to Tristate Output Transducer

Features & Benefits

• Current or Voltage Input
• 24-120 VAC, 4 AMP Isolated Triac Outputs Feedback Potentiometer
• Increment and Decrement Outputs
• Supply Power Isolation
• Zero, and Deadband Adjustment
• OneYear Warranty

Applications

• VAV Control
• Hot water Reset
• Temperature Reset
• Chiled Water Reset
• Mixed Air Reset
• Vane Control

2976 Pacific Drive, Norcross GA 30071 • Phone 770-242- 1944• fax 770-242-1944 • http /www ttk.com

Due to continuous product improvement, TRIATEK reserves the right to change product specifications without notice