The DIGIFAS 7000 series are digital servo amplifiers intended for operating brushless synchronous servo motors in industrial machines, providing closed-loop torque and speed control in their standard configuration.
The power section rectifies three-phase 400 VAC mains directly (with inrush limiting) and drives the motor through an IGBT inverter, while regenerative braking energy is handled by a monitored ballast circuit with an internal braking resistor. Control electronics are supplied from an electrically isolated external DC auxiliary supply, and all setup/commissioning is performed by PC using the dedicated operator software. Standard units use an analog ±10 V differential setpoint input, include limit-switch and ramp functions, and can generate an incremental or SSI position output derived from resolver processing for use by the higher-level automation system. With optional interface modules, the platform can accept digital setpoints and integrate with common automation networks, while built-in monitoring and fault handling cover conditions such as DC-link under/overvoltage, output-stage faults, resolver problems, overtemperature (drive and motor), and brake or insulation faults, signaled through status indication and a ready/fault relay contact.
