Section 4 Operation
18
4
All the light curtains and the muting sensors must be arranged in such
a way that the previous material has already passed the last muting
sensor before the new material has reached the first muting sensors.
Moreover, all the light curtains and the muting sensors must be
arranged in such a way that a person cannot enter the dangerous
zone inadvertently during the muting condition.
4-2-2 Muting operations
1 The muting function will be activated by the following sequence;
(1) Muting sensor A or C becomes ON
(2) Within 30ms to 3seconds after (1), muting sensor B or D becomes ON.
2 The muting function will be deactivated by the either methods below;
(1) One or both muting sensors becomes OFF
(2) 60 seconds (this restriction can be deactivated by DIP switch
configuration. Please refer to section 4-1).
3 Muting function will not become activated if the light curtain is interrupted and
the output contacts are in the opened state.
4 A wrong sequence on muting sensors activation will cause lockout condition of
the F3SP.
Muting sensor A/C
Muting sensor B/D
Muting state
Light curtain state
F3SP state
inactive
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
active
OFF
OFF
ON
30ms to 3 seconds
60 seconds min
.
inactive