Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
Auto transfer of frequent occurrence based on overload causes a Load abnormal. The manual's first action is: “CHECK LOAD”
52S not turned off or turned off without any command causes a 52S abnormal. The manual's first action is: “CALL SERVICE ENGINEER”
Driven IC of pulse transformer on Gate drive PCB abnormality causes a Control circuit error. The manual's first action is: “CALL SERVICE ENGINEER”
Control power supply abnormality causes a Control power abn. The manual's first action is: “CALL SERVICE ENGINEER”
Backup power supply (+5V) abnormality causes a Control power abn. The manual's first action is: “CALL SERVICE ENGINEER”
Isolated 24V power supply for external input relay abnormality causes a Control power abn. The manual's first action is: “CALL SERVICE ENGINEER”
D/A converted voltage abnormality causes a Control circuit error. The manual's first action is: “CALL SERVICE ENGINEER”
A/D converted voltage abnormality causes a Control circuit error. The manual's first action is: “CALL SERVICE ENGINEER”
Control circuit abnormality causes a Control circuit error. The manual's first action is: “CALL SERVICE ENGINEER”
Control clock lost causes a Control circuit error. The manual's first action is: “CALL SERVICE ENGINEER”
Control microprocessor abnormality causes a Control circuit error. The manual's first action is: “CALL SERVICE ENGINEER”
Control microprocessor abnormality causes a Control circuit error. The manual's first action is: “CALL SERVICE ENGINEER”
Fin temp. abnormal because IGBT unit fin temperature is abnormally high. The manual's first action is: “CALL SERVICE ENGINEER”
Inverter overcurrent due to excessive current drawn by the inverter. The manual's first action is: “CALL SERVICE ENGINEER”
Inv. control abnormal from inverter current control error. The manual's first action is: “CALL SERVICE ENGINEER”