
10.CONSTRUCTION PARTS OF HANDY MACHINE OPERATOR’S PANEL SPECIFICATION B-63753EN/01
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10.2 ENABLING SWITCH
This switch is used for keeping operator’s safety when there is a
possibility that the operator using the handy machine operator’s panel
exposes him to danger, example the observation working in the
protection cover of cutting part, and the working in the fence for
danger area. It is a 3-position switch. When operating machine tool,
the switch is hold in the middle of 3 positions. The emergency stop
line opens by releasing hand from this switch and gripping it tightly
when operator exposes himself to danger. This switch is not used,
when the operator is in a safety situation.
The information that can judge the state of this button is read by PMC
ladder program.
This switch has a possibility of fusing and attaching, because the
switch doesn’t have the direct opening action. Operator must check
the occurrence of fusing and attaching of this switch before using
handy machine operator’s panel with this switch. When the enabling
switch is available and the operator is in non-dangerous place,
emergency stop is occurred by operator with releasing the switch or
griping it tightly. When fusing and attaching of the switch is occurred,
the red LED ALM on the handy machine operator’s panel is turned on.
(Emergency stop is not occurred due to additional circuit.) When
fusing and attaching of the switch is occurred, the red LED is turned
on within 3 seconds after releasing the switch or griping it tightly.
CAUTION
1 The enabling switch has a possibility of fusing and
attaching. Operator must check the occurrence of
fusing and attaching of this switch before operating
with handy machine operator’s panel with this
switch. Please check that the red LED ALM is not
turned on while enabling switch is released. And
check that the red LED ALM is not turned on while
enabling switch is gripped tightly.
2 When fusing and attaching is occurred in the
enabling switch, do not use the handy machine
operator’s panel with the enabling switch.
3 Do not cancel the state of emergency stop with the
method except for keeping the enabling switch in
the middle of three positions, when the enabling
switch is available.