GE IS200VAICH1D Analog Input/Output Board

IS200VAICH1D Analog Input/Output Board

The Analog Input/Output (VAIC) board accepts 20 analog inputs and controls 4 analog outputs. Each terminal board accepts 10 inputs and 2 outputs. Cables connect the terminal board to the VME rack where the VAIC processor board is located. VAIC converts the inputs to digital values and transfers them over the VME backplane to the VCMI board, and then to the controller. For outputs, the VAIC converts digital values to analog currents and drives these through the terminal board into the customer circuit. 

VAIC supports both simplex and triple modular redundant (TMR) applications. When used in a TMR configuration, input signals on the terminal board are fanned out to three VME board racks R, S, and T, each containing a VAIC. Output signals are driven with a proprietary circuit that creates the desired current using all three VAICs. In the event of a hardware failure, the bad VAIC is removed from the output and the remaining two boards continue to produce the correct current. When used in a simplex configuration, the terminal board provides input signals to a single VAIC, which provides all of the current for outputs.

The newest VAICH1D and any subsequent releases are designed to support higher load resistance for 20 mA outputs drive voltage: up to 18 V is available at the terminal board screw terminals. This permits operation into loads of 800 Ω with 1000 ft of #18 wire with margin. This generation of the board requires TBAIH1C or later, or any revision of STAI.

Operation

The VAIC board accepts 20 analog inputs, controls 4 analog outputs, and contains signal conditioning, an analog MUX, A/D converter, and D/A converter. The type of analog input, either voltage, 4-20 mA, or ±1 mA, is selected by jumpers on the terminal board. Two of the four analog output circuits are 4-20 mA and the other two can be configured for 4-20 mA or 0-200 mA. Inputs and outputs have noise suppression circuitry to protect against surge and high frequency noise. 

The following table displays the analog I/O capacity of VAIC, using two TBAI terminal boards.

Technical Specifications

100% brand new and original,All the goods will be tested before shipment.

For the in stock items, we will send the order out within 5-7 days after receive the payment.

Global supplier of quality automation and control components.

Topteng offers a 12-month warranty from the date of delivery.

In the event of non-conforming product ( if damaged or incorrect product is received ),

Any nonconformity must be reported within 7 days of receipt of goods.

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