Mitsubishi Electric MELSEC-QS Series Safety Application Manual page 134

5
SAFETY APPLICATION CONFIGURATION EXAMPLE (USING A
SINGLE SAFETY PROGRAMMABLE CONTROLLER)
(6) Timing chart
Reset switch (X140)
Interlocked status (SD1072.0)
Interlock released status (SD1076.0)
CC-Link status (SD1004.0)
Two-hand operation switch 1 (X148)
Two-hand operation switch 1 (X14A)
F+ANTI safety output (M10)
Two-hand operation switch 2 (X14C)
Two-hand operation switch 2 (X14E)
F+ANTI safety output (M11)
F+2HAND3 safety output (M1)
Contactor output (Y101)
Contactor output check (X10A)
5
5.6 Case Examples
- 85
5.6.8 Two-hand operation switch
For details on the safety FBs, F+ANTI, F+2HAND3, and F+EDM, refer to the
following.
QSCPU Programming Manual (Safety FB)
In this example, the time difference (within 500ms) for two buttons to be turned on is
checked. If the time difference does not need to be checked, use the F+2HAND2,
instead of the F+2HAND3.
Two-hand Two-hand Two-hand
operation operation operation
switch 1 switch 2 switch 1
activated activated released
When either of the two-hand
operation switches turns off, the
contactor output (Y101) turns off.
Only when both two-hand
operation switches are on, the
contactor output (Y101) turns on.
Figure 5.68 Timing chart
CC
remote (1)
error
Reset
switch
activated
When an error occurs on the safety remote
I/O station on CC-Link Safety, inputs and
outputs of the corresponding station are
turned off. Also, the F+EDM is disabled.
Contact welding
detected
in the contactor 1
The safety remote I/O station
on CC-Link Safety detects
doubling input discrepancy.