Справочник Пользователя для Mitsubishi Electronics 700 Series

Prior to Sequence Program Creation

1.5.4

Sequence program write

When rewriting the PLC function parameters and sequence program using GX
Developer, check the following:
1) Check that the sequence program execution key is in the STOP position (SQ signal

is off) (refer to page 7).

2) Check that the inverter is at a stop.
3) Check that the communication specification setting parameters (Pr.117 to Pr.124) are

set correctly. If any of these parameters is set incorrectly, communication with GX
Developer cannot be made.

4) Check the PLC series and sequence program capacity in the GX Developer

parameters (refer to page 4).

5) Refer to the GX Developer manual and write the sequence program.

POINT

Sequence program write can be performed in any operation mode.

REMARKS

Check and set the communication specification parameter (Pr. 117 to Pr. 124) using

the parameter unit (FR-PU04/FR-PU07). (Refer to the FR-PU04/FR-PU07

instruction manual for the handling of the FR-PU04/FR-PU07.) GX Developer and

the FR-PU04/FR-PU07 cannot be connected and used simultaneously.

CAUTION

•A sequence program cannot be written with its steps specified. If written,

the sequence program does not run. (The program outside the specified

range is initialized.)

•Do not read the built-in PLC function parameters and sequence program

without writing them to the inverter once using GX Developer. Since the

inverter does not have normal data, always write the built-in PLC function

parameters and sequence program once.

•Since the built-in PLC function parameters and sequence program are

written to the flash ROM, there are restrictions on the number of write times.

(Approximately 100,000 times)