Signal Conditioners

    Signal Conditioners

    Praestar offers several general-purpose signal conditioning products designed to augment the PIC product line. These devices are designed to transform I/O already present on the PIC 220 controller to support alternate signal types and voltages. These devices are not limited to use with the PIC 220, but will most commonly be used with that controller series.

    These products allow normally incompatible signals and loads (AC inputs, AC outputs, etc.) to easily interface with PIC. Three categories of these products are available—those which adapt digital input signals, those which drive specialized digital output loads and those which allow analog outputs to be generated from digital, PWM outputs.

    The PIC 200 Series PIC directly supports DC digital inputs only. Two signal conditioning devices allow the connection of AC inputs as well. The HEXDIA converts 120/240 VAC digital inputs to 24 VDC (8 points). Similarly, the HE-XDIA-24 converts lower voltage 24 VAC input signals to 24 VDC (8 points).

    Three signal conditioning devices allow the standard 24 VDC, 0.5 A outputs of the PIC 200 Series PIC to drive specialized loads. The solid-state HEXDQA allows a 120/250 VAC load to be driven at up to 2 A (four points). The solid state HE-XDQD will drive a 24 VAC/24 VDC load at up to 3 A (four points). The mechanical HE-XDQR can drive up to a 10A load, supporting voltages of 120/250 VAC, and 24/30 VDC (four points).

    Two signal conditioning devices provide the PIC 200 Series PIC with additional analog outputs, by converting 24 VDC PWM outputs already present on the controllers. The HE-XPC converts 24 VDC PWM outputs to 4 to 20 mA (2 channels), while the HE-XPV converts 24 VDC PWM outputs to 0 to 10V (two channels).

    Part Number Description 
    HE-XDIA8 channel 120/240 Vac input to 8 channel, 24 Vdc inputs ( positive logic)
    HE-XDQ A4 channel 120/240 Vac 2 A ( positive logic) adapted from 4 channel,
    24 Vdc 0. 5 A ( positive logic)
    HE-XDQ R 4channel relay output ( 120/250 Vac 10 A, 24/30 Vdc 10 A)
    adapted from 4 channel, 24 Vdc 0. 5 A ( positive logic)
    HE-XDQ D 4channel solid state output ( 24 Vac/Vdc, 3 A) adapted from 4 channel,
    24 Vdc 0. 5 A ( positive logic)
    HE-XPCDual channel PW M to 20 m A analog converter
    HE-XPVDual channel PW M to 10V analog converter