GE / IP FANUC Series 90/30 In Stock
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The 1771-OR is a powerful module from Allen-Bradley that can be used with both the 1771 Series A and Series B I/O chassis. The module, which belongs to the 1771 series, receives power via the 1771 I/O chassis backplane –which must come from a chassis power supply. The 1771-OR can be operated by 255 m-Amperes of current, which must come from the unit’s output supply. To prevent overloading, the module has been equipped with powerful load protection features. Plus, its surge suppression capabilities are high and are provided by its output. What is more, the 1771-OR comes with a MOV (an abbreviation for metal oxide varistor) that is located between the module terminals. This MOV is used to suppress high voltage transients that come from an AC line. Plus, the module is equipped with a dependable RC network that limits voltage transients effect that comes from devices consisting of hard contacts and inductive loads. The communication between the 1771-OR —which can be used with 1771 I/O chassis—and the processor is purely bi-directional.
The 1771-OR also comes with one serial communications port, auxiliary bi-directional XON or XOFF software handshaking, as well as DCD hardware handshaking (that can be used to interface to printers plus commercial asynchronous modems). Loads with massive inductive characteristics could generate immense voltage transients, which may exceed the module’s internal surge suppression protection. In this case, additional surge suppression gadgets might be required to provide optimal protection for the device’s output circuitry. Under certain conditions, electrostatic discharge may cause reduced performance or module damage. Before operating the module, operators should make sure to discharge static by wearing a wrist wrap grounding gadget or by touching a grounded object. They should not touch the connector pins and the backplane connector while handling this module. In a nutshell, the 1771-OR module from Allen-Bradley comes with unique safety features and is versatile. The surge protection unit, for instance, will offer maximum safety—making the 1771-OR ideal for different industrial applications.
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