An overload was detected in the regenerative resistance. (Power Supply (PS) alarm indication: H) Thermostat operation or short-time overload was detected. The regenerative resistor was disconnected, or an abnormal resistance was detected.
1 Decrease the acceleration/deceleration duty.
2 Check the cooling condition (peripheral temperature).
3 If the cooling fan stops, replace the resistor.
4 If the resistance is abnormal, replace the resistor.
Spindle Amplifier indication 57