Assembly
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11.00 | PGN | Assembly and Operating Manual | en | 389286
4.2.6 Operation with a closing and opening proximity switch
In an old standard version of the PGN, the "open" position was
monitored with an opener and the "closed" position with a closer.
If a gripper of this version is replaced by a new version, however
the exisiting sensors (1x closer, 1x opener) should still be used,
please proceed as follows:
Closed-open monitoring
The position "open" is monitored by an opener, the position
"closed" by a closer. The long control cam at the side of the
opener has just to be turned by 180°. The nose is no longer turned
towards the wedge hook, but is located outside the base jaw (see
illustration).
The position of the opening sensor is adjusted now in a way, that it
has the largest possible distance to the control cam, is still
actuated and therefore doesn't furnish a signal while it traverses
area B of the control cam.
An output signal is not furnised until the gripper completely opend
and edge K of the control cam has been passed. Edge K therefore
determines the switching point of the opening sensor.
Monitoring the status "Gripped" is the same as monitoring
"closed" status of a closer.
After the initial adjustment of the control cam, the exact switching
points have to be re-adjusted.
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