Siemens milling machine spindle motor and driver

Siemens milling machine spindle motor and driver are commonly used on machines. Let's get to know it today.

1. Siemens AC spindle motor

As shown in the figure for the Siemens 1PH7 AC spindle motor appearance and composition.

1PH7 AC milling machine spindle motor is a forced air-cooled asynchronous motor that is dissipated through a separately installed fan. The stator winding is embedded with a thermistor for detecting the temperature of the motor. The rotor shaft ends are connected to an encoder for detecting rotor speed and angular displacement. The encoder is connected to an external device via a cable plug or DRIVE- CLiQ interface, and the encoder can select an incremental encoder or an absolute encoder.

2. Siemens 611Ue driver

Siemens 611Ue driver is a DC common bus inverter, composed of power modules and power modules. 611Ue driver and Siemens SI-NUMERIK 802D CNC system supporting the use of milling machine spindle and servo drive. The appearance and composition of the 611Ue drive are shown in the figure.

The power module consists of rectifier module, filter capacitor and control circuit, etc., through the input of the three-phase AC rectifier, filtering, power module to provide DC bus voltage, while the power supply module also provides +5 V, +15 V and +24 V control power, through the equipment bus for the power supply module and power module internal control circuit. The control circuit, in addition to monitoring the DC bus, also performs temperature and operation monitoring, as well as enable control. There are two forms of power supply module, one is the uncontrolled power supply module (also known as feeding power module); Second, regenerative feedback power supply module (also known as feed / regenerative feedback power supply module).

The above is the basic introduction about Siemens milling machine spindle motor and driver.