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Installation and maintenance
The Safeball is mounted using four M5 screws or ST4.8 self-tapping screws. If necessary, the connection cables
can be taken out at the sides at the lower part of the Safeball. The two prepared outlets are provided for this
purpose.
The distance between two Safeballs (for a two-hand device) or to the edge of a table or a wall depends on how the
units are mounted. The minimum distances are given in the below sections.
NB: The Safeball can be mounted in many different ways; on a table or a machine, on a stand or wherever
ergonomically suitable. It is also possible to mount the Safeball either in a fixed position or on a flexible mount such
as a ball joint, allowing tilt and rotation for increased ergonomic support. Refer to the section Accessories below or
the product list at www.jokabsafety.com for details.
Installation precautions
Warning! Safeball must be installed with a minimum distance S to the dangerous machine movement. This
distance is calculated using the following formula for Safeball according to approving agencies and EN 13855:
S = K x T + C
Where:
S = safe distance in mm
K = hand speed, 1600 mm/s
T = total stopping time for the dangerous movement, including the relay response time in seconds
C = constant (the constant is 0 for Safeball when used as a two-hand device, and 2000 when used as a one-
hand device)
Warning! The minimum mounting distance must never be less than 100 mm. When mounting the Safeballs on
aluminium profiles or similar, the fixing screws must be locked in order to prevent the safety distance between two
Safeballs being easily changed.
Warning! All the safety functions must be tested before starting up the system.
2TLC172180M0201, rev. A
2011-10-20
S
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www.jokabsafety.com