Modular inverters

An inverter is a power module (DC-AC inverter) that provides the energy for the connected motor or motors. For UM 3xx modular inverters, the UVR 3xx power supply unit generates the rectified DC-link supply voltage. The DC-link voltage is transmitted to the inverters via conductor bars, and the +24 V supply voltage is transmitted to the inverters via jumper plugs. The CC 3xx controller unit controls the connected modular inverters by means of PWM signals over HFL cables. The UM 3xx inverters differ in the number of axes they support and the maximum currents they permit. The UM 31x inverter can be used to operate no more than one motor, and the UM 32x inverter can be used to operate up to two motors. The components required for operating the modular HEIDENHAIN inverters include the following:

• MC main computer

• PLB 62xx FS or PLB 62xx system PL and PAE-H 08-00-01 or UEC 3xx with integrated system PL

• CC 3xx controller unit • UVR 3xx or UEC 3xx power supply unit

• KDR 3xx commutating reactor

• Line filter for the UVR 3xx • UP 3xx braking resistor module (if necessary)

• Surge protector (if necessary) • SM 3xx voltage protection module (if necessary)

• Further HEIDENHAIN UM 3xx modular inverters (if necessary)

• CMH 3xx capacitor module (if necessary)

The UM 3xx inverters can be combined as desired, but the total required power of all connected UM 3xx inverters or motors must not exceed the power rating of the UVR 3xx power supply unit.