Voltage Protection Module VPM Siemens

Обзор

The Voltage Protection function is used with motors 1FE1...-....1-.... and with 2SP1 motor spindles with EMF of Û > 820 V to 2000 V (V_eff 570 V to 1400 V) to limit the DC link voltage at the drive system in the event of a fault.

If the line voltage fails at maximum motor speed or if the drive system pulses are canceled as a result of the power failure, the synchronous motor regenerates at high voltage back into the DC link.

The VPM detects a DC link voltage that is too high (> 820 V DC) and short-circuits the three motor supply cables, decelerating the motor. The power remaining in the motor is converted to heat via the short circuit in the VPM and motor.

Интеграция

The VPM can be used in conjunction with SINAMICS S120 and 1FE1 motors as well as 2SP1 motor spindles.

The VPM must be installed between the motor and drive system (at a maximum distance from the drive system of 1.5 m (4.92 ft). Shielded 6FX8 motor supply cables must be used with the VPM.

Preconditions for operating 1FE1/2SP1 motors:

• SINAMICS S120
• SINUMERIK 840D sl software version 1.3 and higher

Технические данные