Sav 876.17 - Page 77

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SAV 876.17
EN
2 SAFETY
DANGER!
Risk of injury and risk of damage to the machine!
Failure to observe these instructions may cause unintentional clamping or
release cycles to be triggered unintentionally. There is a risk of workpieces
falling out or being thrown away.
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The system creator has to integrate the control unit into the safety con-
cept of the higher level machine or system. For this, the functions and
interactions between the higher level machine/system and the control unit
have to be described in the instructions for the overall system/machine! It
has to be clarified from a system point of view whether the combination
of the control unit and the magnets used with the selected parameters
are suitable for the application in question. This applies in particular to
hazards from the processes which are influenced with the control unit,
Hazards can generally not be described sufficiently in these “component
instructions” as the processes of the overall machine cannot be known at
this point.
The workpieces are attached with the magnets actuated by the device. After machining is completed, the magnetic
attachment is released again. To ensure process reliability, signals from the control unit are forwarded to the higher
level machine as feedback so the corresponding measures can be initiated.
WARNING!
Risk of fire and risk of damage to the conrtol unit and
magnetic chuck!
Short switching cycles can warm up controller or magnet. This can create a
destruction of chuck caused by fire.
■
When using electric permanent magnets, for thermal reasons it has to
be ensured that the duration between two on/off cycles is no less than
2minutes. In addition, the thermal design characteristics of the magnet
have to be taken into account.
Setting changes on the control unit may only be made by authorised, instructed personnel.
DANGER!
Risk of crushing or injuries from falling parts!
Unintentional tightening or loosening can lead to personal injury or death.
■
No persons may be present in the hazard areas during operation of the
control unit if operating errors can result in hazards, e.g, falling loads!
Depending on the version, magnet systems can be operated with 180VDC, 210VDC or 360VDC (max. 30A
impulse). The operating voltage and the max. current consumption of the magnet have to be checked for this.