Mitsubishi Electric MELSEC iQ-R Series Safety Manual page 121

In this example, the door open/close signal of the safety switch is used as an input signal. Therefore, this signal (SA\X0) is
connected to the input signal, i_bS_GuardLock (Status of the mechanical guard locking), of M+SF_GLOCK_R as well. When
using a safety switch whose locking status can be monitored, connect the locking status signal to i_bS_GuardLock. If a safety
switch that cannot monitor the door open/close signal is used, connect the locking status signal to the two input signals of
M+SF_GLOCK_R, i_bS_GuardMon (Monitor of the guard interlocking) and i_bS_GuardLock. In this case, the timer, SAT1
(timer for waiting for M+SF_GLOCK to be enabled) in the program in the previous page, must be programmed.
■Timing chart
When the reset switch is pressed,
the M+SF_GLOCK_R safety output
(SA\M1) is turned on, enabling the
M+SF_EDM_R.
Reset switch (reset_in)
M+SF_GLOCK_R safety output
(SA\M1)
Start switch (start_in)
M+SF_EDM_R reset input (SA\M3)
Interlock status (SA\SD1232.0)
Interlock release request
(SA\SD1240.0)
Safety refresh communication status
(SA\SD1008.0)
Stop switch (stop_in)
M+SF_GLOCK_R UnlockRequest
input (SA\T0)
Guard lock release output (SA\Y3)
Safety switch (SA\X0)
Contactor output (SA\Y0)
Contactor output check (SA\X2)
M+SF_EDM_R Error output (SA\M2)
When the start switch is pressed,
the M+SF_EDM_R safety output
is turned on and the contactor
output (SA\Y0) turn on.
Stop
Guard
switch
opened
pressed
Reset Start Start
switch switch switch
pressed pressed pressed
When the stop switch is
pressed, the contactor output
is turned off. The guard
interlock will be released in
five seconds (SA\T0 setting
value). (SA\Y3=on)
When the guard is closed
and then the reset switch
is pressed, the guard is
locked. (SA\Y3=off)
The guard can be opened only
while the interlock is released.
(SA\Y3=on)
CCIEF
Guard
remote (1)
closed
error
Reset Start Start Reset Reset
switch switch switch switch switch
pressed pressed pressed pressed pressed
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_GLOCK_R and
M+SF_EDM_R are disabled.
5 SAFETY APPLICATION CONFIGURATION EXAMPLES
5.1 System Configured by a Safety CPU
Stop
Welding
switch
detected in
pressed
the contactor 1
Start Start
switch switch
pressed pressed
A safety remote I/O
module detects a
double input
discrepancy.
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