Auto Switch
Various auto switch applications are possible through different combinations of auto switch quantities and detecting positions.
2) Detection when Gripping Interior of Workpiece
Detection example | 1. Confirmation of fingers in reset | 2. Confirmation of workpiece held | 3. Confirmation of workpiece released | ||
position |
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Position to be | Position of | Position | Position of | ||
fingers | when | fingers fully | |||
detected | fully | gripping | opened | ||
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Operation of | Switch turned ON when fingers return. | Switch turned ON when gripping a | When a workpiece is held (Normal operation): | ||
(Light ON) | workpiece. | Switch to turn OFF (Light not illuminating) | |||
auto switch |
| (Light ON) | When a workpiece is not held (Abnormal operation): | ||
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| Switch to turn ON (Light illuminating) | |
| One auto |
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Detection combinations |
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switches |
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| switch |
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| Two auto |
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How to determine | Step 1) | Step 1) | Step 1) | ||
Fully close the | Position | Fully open the | |||
auto switch | |||||
fingers. | fingers for | fingers. | |||
installation position | |||||
| gripping a |
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| workpiece. |
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At no pressure or low | Step 2) Insert the auto switch into the switch installation groove in the direction shown in the following drawing. | ||||
pressure, connect the |
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switch | to a power |
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supply, and follow the |
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directions. |
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| Step 3) Move the auto switch in the | Step 3) Slide the auto switch in the direction of the arrow until the indicator light | ||
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| direction of the arrow and fasten it at a | illuminates. |
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| position 0.3 to 0.5 mm beyond the |
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| position where the indicator light |
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| illuminates. |
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Position where
light turns ON
Step 4) Slide the auto switch further in the direction of the arrow until the indicator light goes out.
0.3 to 0.5 mm
Position to be secured
Step 5) Move the auto switch in the opposite direction 0.3 to 0.5 mm in the direction indicated by the arrow from its location when the indicator light comes on again.
Position where light turns ON
0.3 to 0.5 mm
Position to be secured
MHZ
MHF
MHL
MHR
MHK
MHS
MHC
MHT
MHY
MHW
MRHQ
Misc.
D-
20-
Note 1) It is recommended that gripping of a workpiece be performed close to the center of the finger stroke.
Note 2) When holding a workpiece close at the end of open/close stroke of fingers, detecting performance of the combinations listed in the above table may be limited, depending on the hysteresis of an auto switch, etc.
