Errors Specific To The Easy Sequence Function - Hitachi NT2021XA Instruction Manual

4.1

Errors Specific to the Easy Sequence Function

The table below lists the errors that are specific to the easy sequence function. For other errors in the inverter, refer to
the SJ700 Series Inverter Instruction Manual.
Error (causing
No.
inverter trip)
1 Invalid instruction
2 Nesting count error
3 Instruction error 1
4 User trip 0 to 9
*1 The asterisk (*) in the factor code represents an inverter status code.
Factor code
(*1)
The inverter assumes an error if you try to download the program that
exceeds capacity, and all programs are not downloaded, or if the
E43.* downloaded program includes an invalid instruction code. This error is
detected if the PRG terminal is turned on when the downloaded program
has been destroyed or no program has been downloaded.
The inverter assumes an error if subroutines, for statements, and/or next
E44.*
statements are nested in more than eight layers.
- The inverter assumes an error if the jump destination of a goto
statement is not the beginning of a nested for statement but preceded
by the end of a nested next statement.
- The inverter assumes an error if the variable "U (xx)" referenced via
another variable is not found.
- The inverter assumes an error if an arithmetic instruction results in
E45.*
overflow or underflow (WJ200 Step2 is excluded.), or causes a
division by zero.
- The inverter assumes an error if a chg param instruction causes
reference to a nonexistent parameter, change of a parameter value
outside the setting limits, or updating of a parameter that cannot be
updated during inverter operation.
E50.* to
E59.*
Chapter 4 Errors and Troubleshooting
Description
4-1