ABB Jokab Safety Safeball JSTD1 Manuale di istruzioni originale - Pagina 9
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Minimum mounting distances and requirements for two hand device
Warning! Follow the below instructions to avoid severe personal injury.
A Safeball must be mounted at a minimum distance to the edge of the mounting surface in order to prevent the
system being defeated and the device being activated either intentionally or unintentionally with a part of the body
other than the hands.
If the Safeball is mounted on e.g. a ball joint or any other solution where the Safeball can be moved, the distance to
the closest wall must also be considered. This distance is determined by the mount, but the Safeball must never be
able to reach the wall in any position.
To accomplish a two hand device type IIIC according to EN 574, the following additional requirements must be met:
Two one-hand devices must be used and connected to the same safety monitor.
The two devices must be mounted at a minimum distance between each other in order to prevent both of
them being operated with one hand (see measurements in the figure below).
180
Warning! The minimum safety distance varies greatly as there are many ways to mount JSTD1 units. It is essential
that mounting prevents the system being defeated either intentionally or unintentionally.
Two hand device function description
The safety monitor must be programmed / parameterized to monitor the simultaneous action of both the two
channels in the devices and also the simultaneous action of the two devices. The maximum time between
activation of the two channels in each device must be 0.5 seconds and the maximum time between activation of
the two devices must also be 0.5 seconds.
Safeball #1
Safeball #2
2TLC172180M0201, rev. A
2011-10-20
(mm)
120
Minimum mounting distances
1oo2 monitor with time limit 0.5 s
1oo2 monitor with time limit 0.5 s
Two hand device function description
1oo2 monitor with time limit 0.5 s
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