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3. Fundamental safety notes
3.5. Notes on protection
of equipment
Risk of damage
through wrong connection
INDRAMAT electronic drive components are provided with comprehen-
sive protective circuitry and protected against overloading.
Nevertheless, the following precautions must still be taken:
– Voltage levels applied to inputs must always be in accordance with
prescribed data.
– Do not connect outputs to external power sources.
– Do not connect mains power, DC link circuit and motor conductors to the
low-voltage
±
15 V and +24 V supplies. These conductors must also be
provided with adequate insulation against each other.
INDRAMAT drive components are 100% h.v. tested according to VDE
standard 0160.
If an h.v. or separate-source voltage-withstand test is to be carried out on
a machine’s electrical equipment, all component connections must be
disconnected in order not to damage the components’ electronic mod-
ules (permissible acc. to VDE 0113).
Our Sales Department will provide additional information on request.
Electrostatic charges represent a danger to electronic equipment. Bodies
liable to come into contact with components and circuit cards must be
discharged by earthing:
– discharge your own body by touching a conductive, earthed object.
– when carrying out soldering work, first discharge the soldering iron.
– discharge parts and tools by laying them on a conductive substrate.
Parts at risk, such as software modules, must always be stored or
shipped in conductive packaging.
If the position control loop of the NC control is opened during
commissioning and the drives are operated in a velocity loop, the
machine will be at risk due to the limited stroke lengths of linear axes.
To avoid damage to the machine, please ensure the following:
– Enabling of the drives and injection of a velocity command must always
be carried out by properly qualified personnel.
– Make sure the emergency stop function will be triggered by limit switch
or E-STOP button.
Risk of damage
through external or
high-voltage power sources
Risk of damage
through electrostatic
charges
3.6. Notes on protection
of machinery
