Mitsubishi Electric MELSEC iQ-RX40NC6B, Руководство пользователя приложения

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118
APPX
Appendix 5 Disabling the Safety Module
Appendix 5
Disabling the Safety Module
For the I/O module with diagnostic functions whose function as the safety module for SIL2 mode was enabled in the other
system, to use this module in normal mode, disabling its safety module function is required. If the I/O module with diagnostic
functions is started up in normal mode with the safety module function enabled, an error (start-up in normal mode with safety
validated (error code: 3040H)) occurs. The module does not operate normally until its safety module function becomes
disabled.
Safety module validity status check
Whether the safety module function is enabled or not can be checked with Validation status area (Un\G5377).
• The I/O module with diagnostic functions does not operate normally in normal mode while Enable (1) is stored in Validation
status area (Un\G5377). In such a case, disabling the safety module function is required. Note that for the I/O module with
diagnostic functions operating in normal mode, its safety module function cannot be disabled through "Safety Module
Operation" of GX Works3.
• The I/O module with diagnostic functions operates normally in normal mode when Disable (0) is stored in Validation status
area (Un\G5377). In this case, disabling the safety module function is not required.
Procedure for disabling the safety module
1.
Set Command area for module invalidation (Un\G5376) to 1234H and turn on and off 'Operating condition setting
request' (Y12). This operation disables the safety module function of the I/O module with diagnostic functions.
2.
To check whether the safety module function becomes disabled or not, refer to the table below.
• If disabling the safety module fails, check that a set value in Command area for module invalidation (Un\G5376) is correct,
and once again, turn on and off 'Operating condition setting request' (Y12) and check whether the safety module function is
disabled.
• When 'Operating condition setting request' (Y12) is turned on, 'Operating condition setting completed flag' (X12) turns off
regardless of the result (succeed or fail) of disabling the safety module function.
3.
After checking that the disabling has succeeded, reset the CPU module, or turn off and on the programmable controller's
power to restart the I/O module with diagnostic functions.
4.
Check that the ALM LED is off. (The I/O module with diagnostic functions is operating normally in normal mode.) If the
ALM LED is on, it indicates that an alarm occurred, even though the I/O module with diagnostic functions is operating in
normal mode. Check 'Latest alarm code' (Un\G2564), and take actions described in the list of alarm codes. (

Page
70 List of Alarm Codes)
Disabling the safety module Description
Succeeded • Disable (0) is stored in Validation status area (Un\G5377).
• The ALM LED flashes (400ms cycle). (I/O module with diagnostic functions
waiting for restart)
Failed • Enable (1) remains in Validation status area (Un\G5377).
• The ALM LED does not flash (400ms cycle).
• A code (failure of disabling safety module (event code: 00A12H)) is
registered with the event history. (  Page 54 Event History Function)