About the UR-6NH
The UR-6NH Digital I/O Module offers the Universal Relays series the ability to communicate with equipment such as fans, valves, and alarms within the given power system. This particular unit endows the relay with 4 Form-A (current with optional voltage) outputs and 8 contact inputs. Other modules in the series contain the Form-C and Fast Form-C outputs, so users should review all options on the AX Control Inc. website or through the order codes found in the Universal Relays user manuals in order to assess which module is best for their needs. The Universal Relays are designed with modularity in mind, so the installation of modules is fairly streamlined once a prospective buyer makes a decision.
Users should only perform installations, upgrades, or maintenance when control power has been removed from the relay. Additionally, modules can only be replaced with modules of the same kind, so users should take special care to ensure the correct module type is being installed into a given slot. If either of these requirements are not followed, Multilin warns that potential equipment damage, user injury, or faulty operation can occur. It is also worth noting that users should employ satisfactory electrostatic discharge protection if coming into contact while energized.