Mitsubishi Electric MELSEC iQ-R Series - Page 129

5 SAFETY APPLICATION CONFIGURATION EXAMPLES
5.1 System Configured by a Safety CPU
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For details on the safety FBs, refer to the following.
 MELSEC iQ-R Safety Function Block Reference
In this example, an enabling switch with no monitor signal for position 3 is used. Therefore, SA\SM400 (Always on) is
connected to the input signal, i_bS_EnableSwCh2, of M+SF_ENBLSW_R.
When using an enabling switch with monitor signal for position 3, connect the signal to i_bS_EnableSwCh2 to monitor the
status of position 3.
■Timing chart
M+SF_MODESEL_R S_Mode1Sel
output (SA\M11)
Start switch (start_in)
Interlock status (SA\SD1232.0)
Interlock release request
(SA\SD1240.0)
M+SF_ENBLSW_R safety output
(SA\M5)
M+SF_MODESEL_R S_Mode0Sel
output (SA\M10)
Reset switch (reset_in)
M+SF_EDM_R reset input (SA\M3)
M+SF_EDM_R Error output
(SA\M2)
Safety refresh communication
status (SA\SD1008.0)
Enabling switch (SA\X8)
Safety switch (SA\X0)
Contactor output (SA\Y0)
Contactor output check (SA\X2)
Guard opened
Mode: Automatic (mode_auto)
Mode: Manual (mode_manu)
Mode switched
Contact welding
detected in the
contactor 1
Contact welding
detected in the
contactor 1
Error occurred in
a safety remote
I/O module
Error occurred in
a safety remote
I/O module
When an error occurs in a safety remote I/O module, inputs
and outputs of the safety remote I/O module are turned off.
Also, the M_SF_MODESEL_R, M_SF_ENBLSW_R,
M+SF_GMON_R, and M+SF_EDM_R are disabled.
A safety remote I/O module detects
a double input discrepancy.
In manual mode, the reset switch and start
switch cannot be used.
In manual mode, the M+SF_GMON_R is disabled
and the operation using the enabling switch is
possible even though the guard is open.
Enabling
switch
turned off
Enabling
switch
turned off
Enabling
switch
turned on
Enabling
switch
turned on