Mitsubishi Electric Melsec-QS Series Safety Application Manual page 57

5
SAFETY APPLICATION CONFIGURATION EXAMPLE
Internal
Designates a timer device.
T0
Times out after a lapse of the time specified at K
Designates a word device.
In the program, this is used as restart status.
(1) D0 = 0 designates that the system is in initial status or start processing is completed.
D0
(2) D0 = 1 (D0.0: ON) designates that the reset switch is pressed.
(3) D0 = 2 (D0.1: ON) designates that the reset switch is released in (2) status and
restart processing is completed.
Designates a word device.
In the program, this is used as start status.
(1) D1 = 0 designates that the system is in initial status or safety is not confirmed.
D1
(2) D1 = 1 (D1.0: ON) designates that the start switch is pressed.
(3) D1 = 2 (D1.1: ON) designates that the start switch is released in (2) status and
start processing is completed.
(6) Timing chart
Pressing
the reset
SW
Reset SW (X140)
Restart status (D0.0)
Restart status (D0.1)
Start SW (X142)
Start status (D1.0)
Start status (D1.1)
Interlock status
(SD1272.0)
Interlock clear
(SD1276.0)
CC-Link status
(SD1204.0)
Stop SW (X144)
Safety door SW (X100)
Safety information (M5)
Safety relay output
(Y202)
Safety relay output check
(X202)
(b) Way of using the internal devices
Table5.13 Way of using the internal devices
(c) Way of using word device bit specification
D . : designates the
Example) D0.0 indicates 0 bits in D0.
F
0 0 0 0 0 0 0
Figure5.16 Word device bit specification
Pressing
Opening
the stop
the door
SW
Pressing Pressing Pressing
the start the reset the start
SW SW SW
Turing OFF the stop SW
Figure5.17 Timing chart
Details
.
th bit data of word device D
0
0 0 0 0 0 0 0 0 1
CC-Link
Closing
remote (4)
the door
error
Pressing Pressing Pressing
the reset the start the reset
SW SW SW
CC-Link
error
5.6 Case Examples
5.6.2 Door lock circuit
.
Pressing Detecting
the stop relay
SW welding
Pressing Pressing Pressing
the reset the start the reset
SW SW SW
Detecting welding
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