8
SM-Ethernet User Guide
Issue: 7
All machinery to be supplied within the European Union in which this product is used
must comply with the following directives:
2006/42/EC Safety of machinery.
2014/30/EU: Electromagnetic Compatibility.
1.5
Electrical hazards
The voltages used in the drive can cause severe electrical shock and/or burns, and
could be lethal. Extreme care is necessary at all times when working with or adjacent to
the drive. Hazardous voltage may be present in any of the following locations:
•
AC and DC supply cables and connections
•
Output cables and connections
•
Many internal parts of the drive, and external option units
Unless otherwise indicated, control terminals are single insulated and must not be
touched.
The supply must be disconnected by an approved electrical isolation device before
gaining access to the electrical connections.
The STOP and Safe Torque Off functions of the drive do not isolate dangerous voltages
from the output of the drive or from any external option unit.
The drive must be installed in accordance with the instructions given in this guide.
Failure to observe the instructions could result in a fire hazard.
1.6
Stored electrical charge
The drive contains capacitors that remain charged to a potentially lethal voltage after the
AC supply has been disconnected. If the drive has been energized, the AC supply must
be isolated at least ten minutes before work may continue.
1.7
Mechanical hazards
Careful consideration must be given to the functions of the drive or controller which
might result in a hazard, either through their intended behaviour or through incorrect
operation due to a fault. In any application where a malfunction of the drive or its control
system could lead to or allow damage, loss or injury, a risk analysis must be carried out,
and where necessary, further measures taken to reduce the risk - for example, an over-
speed protection device in case of failure of the speed control, or a fail-safe mechanical
brake in case of loss of motor braking.
With the sole exception of the Safe Torque Off function, none of the drive
functions must be used to ensure safety of personnel, i.e. they must not be used
for safety-related functions.
The Safe Torque Off function may be used in a safety-related application. The system
designer is responsible for ensuring that the complete system is safe and designed
correctly according to the relevant safety standards.
The design of safety-related control systems must only be done by personnel with the
required training and experience. The Safe Torque Off function will only ensure the
safety of a machine if it is correctly incorporated into a complete safety system. The
system must be subject to a risk assessment to confirm that the residual risk of an
unsafe event is at an acceptable level for the application.
1.8
Access to equipment
Access must be restricted to authorized personnel only. Safety regulations which apply
at the place of use must be complied with.
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