Product Info
Description
VME ANALOG OUTPUT CA
Repair
ICC’s large inventory investment includes IS200VAOCH1B. ICC’s highly skilled technicians have the training and expertise to repair IS200VAOCH1B. In addition, our IS200VAOCH1B repairs come with a warranty. Please fill out our Request a Quote form with IS200VAOCH1B in the Subject Line, and/or include IS200VAOCH1B in the Message, for additional information about ICC’s IS200VAOCH1B. A ICC Business Development Leader will assist you with your IS200VAOCH1B needs shortly!
Reman
Purchasing a remanufactured GE IS200VAOCH1B offers substantial savings over new/unused with the functionality and reliability to match. Our assurance in remanufactured products allows ICC to offer 24 Months Warranty.
Exchange
Exchange is the combination of quick supply with applied discount against your old faulty card. Send us your old GE IS200VAOCH1B and we will replace (exchange) with a remanufactured spare, supplied with 24 Months Warranty
IS200VAOCH1B is an Analog Output Board developed by GE. The Analog Output Board is in handle of 16 analog 20 mA outputs. These outputs are connected to the Analog Output Terminal Board via two terminal blocks (TBAO). Cables with molded plugs link the terminal board to the VME rack, which contains the processor board. It receives digital data from the controller through the VME backplane and converts them to analog output currents before sending them to the TBAO.
Features
On the terminal board, the actual output current is measured and passed back to VAOC, where it is managed.
Control signals are fanned into the same terminal board from three VME board racks R, S, and T in TMR applications.
TMR requires six cables to support all 16 outputs. Each final current output is the median select of the three currents in the three VAOCs, and each has this median select circuit.
Cable connections to the TBAO terminal boards are established at the lower J3 and J4 connectors on the VME rack. To secure the cables, they are latching connections.
Installation
Turn off the VME I/O processor rack.
Insert the VAOC board and use your hands to press the top and bottom levers in to seat the edge connectors.
Tighten the captive screws on the front panel's top and bottom.
Start the VME rack and look at the diagnostic lights on the front panel.
Operation
The VAOC has 16 analog 0-20 mA outputs. The D/A converter and driver that generates the regulated currents are housed in the VAOC.
The voltage drop across a resistor on the terminal board is used to calculate the output current.
Compatibility
The VAOC board and accompanying terminal boards come in two generations. All VAOC iterations up to and including VAOCH1B are considered to be the original VAOC. These boards can sustain up to 500 W of load resistance at the end of 1000 feet of #18 wire while driving 20 mA outputs. For optimal operation, this generation of board needs a terminal board TBAOH1B or earlier. Additionally, they are compatible with all DTAI terminal board revisions.
Each analog current output in a TMR system is fed by the combined currents from the three VAOCs. With the help of a series resistor that feeds a voltage back to each VAOC, the total output current is measured. The three currents' median value, as determined by voting, is the output. The other two pick up the current to the right value if one output fails.
In the event of a circuit malfunction that cannot be resolved by a CPU order, the circuit is shut down by opening the contacts on the shutdown relay. Only when setup for TMR operation is this isolation feature usable.
