Fault code24
Main circuit error indicates a ground fault at the servo motor outputs due to wiring contact or deteriorated cable sheaths. The manual's first action is: “Change the cable.”
- Model
- MELSERVO MR-J2S- /L50132B
- Display shows
- Main circuit error (24)
- Type
- Fault code
- Source
- Manual p. 108
What 24 means
Main circuit error p. 110
Common causes
- Ground fault occurred at the servo motor outputs (U,V and W phases) of the servo amplifier. p. 110
- 1. Power input wires and servo motor output wires are in contact at main circuit terminal block (TE1). p. 110
- 2. Sheathes of servo motor power cables deteriorated, resulting in ground fault. p. 110
- 3. Main circuit of servo amplifier failed. p. 110
What to do
Before you service the product, read the safety instructions in the manual p. 2.
If 24 is still not resolved
- contact service / dealer p. 2 “Do not attempt to install, operate, maintain or inspect the servo amplifier and servo motor until you have read through this Instruction Manual, Installation guide, Servo motor Instruction Manual and appended documents carefully and can use the equipment correctly.”
- contact service / dealer p. 3 “Any person who is involved in wiring and inspection should be fully competent to do the work.”
This page summarises what the manufacturer’s manual says about 24; 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 MELSERVO. Found a mistake? Report an error.