Stepper Transformers

Stepper transformers are supply transformers made for stepper systems that step the mains voltage down to the AC supply voltage of a stepper motor drive. They are used in machine panels with stepper drives to supply one or more drives from a single transformer. This category includes GMT toroidal stepper system transformers with 70 V AC output voltage; 60 W single-output, 120 W two-output and 180 W three-output models are offered. Choose the transformer according to the number of outputs matching the number of drives you will supply, the total power of the drives, and whether the output voltage stays within the AC input voltage range the drive allows. Drives with DC input only cannot be supplied directly from these transformers. A stepper transformer provides AC output and does not regulate the voltage; it does not replace a switching power supply with regulated DC output.

Products

How to choose Stepper Transformers

Stepper transformers are supply transformers made for stepper systems that step the mains voltage down to the AC supply voltage of a stepper motor drive. They are used in machine panels with stepper drives to supply one or more drives from a single transformer.

  • Separate sensing, motion control, logic processing and operator interface requirements.
  • Select signal type, supply voltage, communication protocol and I/O count for the machine network.
  • Verify housing size, sensing distance and PNP/NPN output polarity against the PLC input card.

Frequently asked questions

What is Stepper Transformers and where is it used?

Stepper transformers are supply transformers made for stepper systems that step the mains voltage down to the AC supply voltage of a stepper motor drive. They are used in machine panels with stepper drives to supply one or more drives from a single transformer.

What should I compare when choosing Stepper Transformers?

Choose the transformer according to the number of outputs matching the number of drives you will supply, the total power of the drives, and whether the output voltage stays within the AC input voltage range the drive allows.

Where can I find technical details for Stepper Transformers products?

Drives with DC input only cannot be supplied directly from these transformers.

Stepper Motor Systems Selection Guide: Technical Criteria and Engineering Practice