Top FD300 Series AC Frequency Converter Manufacturers in China

A PG (Pulse Generator) card is an expansion module that reads encoder feedback. You need it to enable closed-loop vector control, which is essential for achieving the highest speed accuracy (±0.02%) and for positioning tasks.

The 300 Series uses a flexible expansion slot. You can simply purchase the specific communication card for your chosen protocol (e.g., EtherCAT or Profinet), install it into the drive, and configure the network parameters.

This feature is perfect for applications with large fans or high-inertia loads. It allows the drive to smoothly “catch” a coasting motor by matching its speed before applying torque, which prevents damaging mechanical shock and high electrical currents.

While it would perform exceptionally well, its advanced capabilities like position control and synchronous motor support may be more than needed. Our general-purpose drives are often more cost-effective for simpler applications.

Yes. When equipped with a PG card, its position control mode is excellent for simple point-to-point indexing and positioning tasks, which can sometimes eliminate the need for a more complex servo drive system.

Yes, for the smaller frame sizes within the 300 Series, an optional DIN rail mounting adapter is available, providing a quick, convenient, and space-saving installation method inside control cabinets.

A sub-10ms torque response (in closed-loop mode) means the drive reacts almost instantly to load changes. This is critical for applications like CNC machining and textiles to maintain constant speed and tension, ensuring the highest product quality.