AxN Configurable Motion Control Platform
8
High electric voltage by incorrect connection! Risk of death or bodily injury by
electric shock!
»
To all connections and terminals with voltages between 0 and 50 Volt, only devices, electrical
components, and conductors may be connected which are equipped with a PELV (Protective
Extra-Low Voltage) system.
»
Connect only voltages and circuits which are safely isolated from dangerous voltages. Safe
isolation is achieved for example by isolating transformers, safe optocouplers or battery
operation without mains connection.
Protection against Dangerous Movements
Dangerous movements can be caused by faulty control of connected motors. Some common
examples are:
»
improper or wrong wiring of cable connections
»
incorrect operation of the equipment components
»
wrong input of parameters before operation
»
malfunction of sensors, encoders and monitoring devices
»
defective components
»
software or firmware errors
Dangerous movements can occur immediately after equipment is switched on or even after an
unspecified time of trouble-free operation. The monitoring in the drive components will normally
be sufficient to avoid faulty operation in the connected drives. Regarding personal safety, especially
the danger of bodily harm and material damage, this alone cannot be relied upon to ensure
complete safety. Until the integrated monitoring functions become effective, it must be assumed
in any case that faulty drive movements will occur. The extent of faulty drive movements depends
upon the type of control and the state of operation.
Dangerous movements! Danger to life, risk of injury, severe bodily harm or
material damage!
»
For the above reasons, ensure personal safety by means of qualified and tested higher-level
monitoring devices or measures integrated in the installation. They have to be provided for
by the user according to the specific conditions within the installation and a hazard and fault
analysis. The safety regulations applicable for the installation have to be taken into
consideration. Unintended machine motion or other malfunction is possible if safety devices
are disabled, bypassed or not activated.
To avoid accidents, bodily harm and/or material damage:
»
Keep free and clear of the machine’s range of motion and moving parts. Possible measures to
prevent people from accidentally entering the machine’s range of motion are
using safety
fences
,
using safety guards
,
using protective coverings
and
installing light curtains or light
barriers
»
Fences and coverings must be strong enough to resist maximum possible momentum.
»
Mount the emergency stop switch in the immediate reach of the operator. Verify that the
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