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SAV 244 .70 / .71 / .72 / .73 /
.74 / .76 / .99
8 TROUBLESHOOTING
8 TROUBLESHOOTING
The safety information from section 2 “Sicherheit” must be observed.
DANGER!
Hazard from malfunction!
Incorrect assembly of the magnetic circular chuck can cause a malfunction
of the machine.
This can cause crushing and jamming points, posing a risk of crushing for
limbs.
Objects can be ejected, causing serious injuries and even death.
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Have troubleshooting carried out only be qualified personnel.
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The magnetic circular chuck must always be securely attached to the
work surface of the machine tool. Check after assembly!
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Re-attach safety devices correctly.
DANGER!
Risk of crushing!
There is a risk of limbs being crushed by the magnetic circular chucks
tipping over or falling due to incorrect installation and removal.
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Secure the magnetic circular chucks against falling or tipping over.
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When lifting the magnetic circular chucks, only use suitable and
approved lifting gear and slings which are designed for the weight
of the magnetic circular chucks.
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Have troubleshooting carried out only be qualified personnel.
DANGER!
Risk of electric shock!
The magnetic holding force is switched on and off with current pulses.
Electro permanent magnetic circular chucks use high magnetising and
demagnetising voltages. An electric shock can result in death or serious
injuries.
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Before troubleshooting, always disconnect the electro permanent magnet-
ic circular chucks from the power supply.
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Always protect the junction box and rubberised cable against damage.
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To exclude malfunctions and hazards for the operator, it must be ensured
that the junction box is sealed, in particular during wet work and after
any repair work. The same applies to connectors, current transmitters, slip
ring assemblies and carbon brush holders.
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If the magnet has a connector, only unplug this once the demagnetising
cycles has been completed and the red signal light is permanently on.
Risk from electric arc.
Magnetic circular chuck does not switch
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Magnetic circular chuck not connected to the control unit. Check the connection.
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Magnetic circular chuck defective. Send the magnetic circular chuck to SAV GmbH for repair.
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Control unit not connected to the power supply or defective. Check the control unit.
Workpiece not adhering to the magnetic circular chuck
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Holding force of the workpiece too low, e.g. due to high-alloy workpieces. Note the information in section 3.1
“Holding forces”.
Please note the detailed checklists for troubleshooting in the operating instructions for the SAV polarity reversal
control units.
Contact SAV Service if necessary.
Summary of Contents for 244.70
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