Alarm codeAL OC
The output current from the amplifier to the motor exceeded a specified value, triggering an overcurrent alarm. The manual's first action is: “The output current from the amplifier to the motor exceeded a specified value.”
- Model
- RYS MHT260a
- Display shows
- Overcurrent, output overcurrent (AL OC)
- Type
- Alarm code
- Source
- Manual p. 247
What AL OC means
Overcurrent, output overcurrent p. 253
Common causes
What to do
- The output current from the amplifier to the motor exceeded a specified value. p. 253
- The power wiring to the motor may be short-circuited or grounded. As a general rule, minimum insulation resistance between motor terminals and grounding (earth) terminal (symbol "E" or "") is about 1 [MΩ]. The motor winding resistance value between each phase is as same. p. 253
Before you service the product, read the safety instructions in the manual p. 3.
If AL OC is still not resolved
- Contact Fuji for special systems or applications such as atomic-energy control, aerospace use, medical use, and traffic control. p. 4 “Customers, who want to use the products introduced in this manual for special systems or devices such as for atomic-energy control, aerospace use, medical use, and traffic control, are requested to consult the Fuji.”
This page summarises what the manufacturer’s manual says about AL OC; 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 RYS. Found a mistake? Report an error.