DOLD SAFEMASTER M Safety Technique - Page 4

Browse online or download pdf Safety Technique for I/O Systems DOLD SAFEMASTER M. DOLD SAFEMASTER M 12 pages. Multi-function safety system

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Function Diagrams
Note:
The times specified in a pulse diagram also apply to the same function in other applications.
gate, changeover
contact 1 NC contact
gate, changeover
contact 1 NO contact
gate, changeover
contact 2 NO contact
gate, changeover
contact 2 NC contact
gate recognized
as closed
status:
1
gate is
fully open
Safety gate control
two-hand 1,
NC contact
two-hand 1,
NO contact
two-hand 2,
NO contact
two-hand 2,
NC contact
two-hand
recognized as
operated
status:
1
two-hand
operation of the
not pressed
two buttons correct
Two-hand control type IIIC

emergency stop,

LC, signal 1
emergency stop,
LC, signal 2
emergency stop
recognized as closed
status:
1
emergency
stop pressed
close correctly
Emergency stop or light curtains
2
3
gate closes
gate is
regularly
correctly
recognized at the
t<3s
closed
first edge at one of
(now, status 1 is expected)
2
3
4
two-hand
release of the,
is pressed
button is recognized
t<0,5s
at the first edge at
one of the 4 contacts
(now, status 1 is expected)
2
3
4
contacts
emergency
operation of the
stop
emergency stop is
t<0,250s
deactivated
recognized at the
first edge at one of
the 2 contacts
(now, status 1 is expected)
4
1
gate opens, is
gate closes,
one contact signal missing
the 4 contacts
1
2
button 2 has been
confirmed too late
t=0,5s
1
2
emergency stop is
deactivated, a line
is interrupted
t=0,250s
4
2
error,
1
status 1
error has been
is expected
corrected
t=3s
again
M8987_b
error,
1
2
status 1 is
error has been
expected again
corrected
M8989_b
error,
1
2
status 1 is
error has been
expected again
corrected
M8991
2
3
3
3
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