Yaskawa FS100 Error 4972: CONVTR REGENERATE OVERLOAD(SV)

Yaskawa FS100 · taken from the manufacturer’s manual, pages cited

Alarm code4972

The converter is generating excessive regenerative power that exceeds its limits. The manual's first action is: “Correct the converter primary power supply.”

Model
Yaskawa FS100
Display shows
CONVTR REGENERATE OVERLOAD(SV) (4972)
Type
Alarm code
Source
Manual p. 302

What 4972 means

CONVTR REGENERATE OVERLOAD(SV) p. 302

Common causes

  • Primary power supply failure p. 302
  • Setting error p. 302
  • Connection failure p. 302
  • Module failure (Regenerative resistor) p. 302
  • Module failure (converter) p. 302
  • Servo control board failure p. 302

What to do

  1. Correct the converter primary power supply. p. 302
  2. - Check the following settings. - The tool information - JOB - Work - The speed of JOB - The acceleration/deceleration speed of ACC and DEC p. 302
  3. (1)Reset the alarm (2)If the alarm occurs again, replace controller. Save the CMOS BIN before replace controller to be safe. p. 302

Before you service the product, read the safety instructions in the manual p. 4.

If 4972 is still not resolved

  • (1)Reset the alarm (2)If the alarm occurs again, replace controller. Save the CMOS BIN before replace controller to be safe. p. 302
    “(1)Reset the alarm (2)If the alarm occurs again, replace controller. Save the CMOS BIN before replace controller to be safe.”
Open the manual at page 302 All FS100 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 4972; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Yaskawa. Found a mistake? Report an error.