Hitachi SJ Series, User Manual

Page: 616 / 786

18-23
Chapter 18
Tips/FAQ/Troubleshooting
E042 RTC error
The error is generated if the data of RTC incorporated
in the operator keypad is returned to the initial data.
E043 EzSQ illegal
instruction error
This error is output when an invalid instruction is
detected in operation of a program which is
downloaded to the inverter while the programing
function EzSQ is used.
The error is also output if the program is put into
action in the condition that the prog
ram hasn’t been
written.
Occurrence

Estimated cause(s)

Exemplar measures to be taken
Error occurred at
power-on.
• A battery in the operator
runs out.
• Replacement of the battery and setting of the date solve the issue.
The error occurs when the power supply is turned ON with a dead
battery.
E043
Occurrence

Estimated cause(s)

Exemplar measures to be taken
Error occurred
when the program
was about to put
into action.
• Program hasn’t been
entered.
• EzSQ program needs to be written in the factory default setting
condition and after initialization. Write in the program.
• Writing error due to
noise
• There is a possibility of EzSQ program writing error and if there is a
noise source nearby, the situation may be improved by taking a
noise countermeasure such as keeping the noise source away and
writing the program.
E042