Hitachi SJ Series, User Manual

Page: 617 / 786

18-24
Chapter 18
Tips/FAQ/Troubleshooting
E044 EzSQ nest count error
This error is output when the nesting frequency of a
subroutine, "for" statement, "next" statement, etc. on
a program exceeds 8 times while the programing
function EzSQ is used.
E045 EzSQ executive
instruction error
During operation of a program which is downloaded
to the inverter while the programing function EzSQ is
used, if execution of the program is turned OFF due
to an error, the inverter generates E045 error.
Occurrence

Estimated cause(s)

Exemplar measures to be taken
Error occurred
when the program
was put into action.
• Program structure is too
complicated.
• The program has deep nesting of a subroutine, "for" statement,
"next" statement, etc., with its nesting frequency exceeding 8 times.
Improvement of the program structure is required.
E045
E044
Occurrence

Estimated cause(s)

Exemplar measures to be taken
Error occurred
when the program
was put into
action.
• There is a problem in
the data.
• There may be an overflow, underflow, or division by zero in four
arithmetic operations. Check the result of operations and amend
the operations as needed.
• Program flow is
inadequate.
• This error is output if there is no nest starting statement such as
"for" at the point when
“goto” statement refers to, or if a nest ending
statement such as "next” precedes the nest starting statement.
Check the structure of "for" statement and "next" statement and
make amendments as needed.
• This error is output if a non-existing parameter is referred to or a
setting is made beyond the setting range in “chg param” or “mon
param” instruction. Check the content of instruction and make
amendments as needed.