AC Power Connections

AC input power to the iXR3/XR3 is applied to the AC power receptacle that is located on the rear panel. The power cord connected to this receptacle also provides the protective earth ground connection and can serve as a Mains disconnect. The main power switch located on the front panel of the drive chassis also functions as a 10 A breaker (supplementary protection only) for the incoming AC power.

Most drive racks can be configured for operation at any of four different AC input voltages. To configure the iXR3/XR3, refer to Voltage Selection Operation. Before you attempt to reconfigure the AC input voltage, verify that drive rack does not contain an offline bus supply (for example, 160LT Bus) or other option that would limit or restrict the AC input voltage. These standard AC input voltages along with the current requirements are listed in Main AC Power Input Voltages and Current Requirements.

Table: Main AC Power Input Voltages and Current Requirements

AC Input Voltage	Input Amps (maximum continuous)
100 VAC 50/60 Hz	10 A
120 VAC 50/60 Hz	10 A
200/208 VAC 50/60 Hz	5 A
240 VAC 50/60 Hz	5 A

The AC power cord wiring must be rated for at least 300 V and have a minimum current capacity of 10 A. The insulation rating for the AC power wiring must be appropriately rated for the environment. The temperature rating of the insulation must be at least 80 ºC. Environmental conditions may necessitate the need to meet additional AC wiring requirements or specifications. AC wiring should not be bundled with signal wiring to minimize EMI coupling and interference.

A Metal Oxide Varistor (MOV) is installed from each AC input to frame ground. The MOV part number is V275LA40C and has a nominal 275 VAC maximum operating voltage. This component could cause hi-pot tests to fail. Contact Aerotech technical support for further information.