Eaton ESR5-NO-41-24VDC Manual page 3

Danger!
Dangerous electrical voltage!
Before commencing the installation
• Disconnect the power supply of the device.
• Ensure that devices cannot be accidentally restarted.
• Verify isolation from the supply.
• Earth and short circuit.
• Cover or enclose neighbouring units that are live.
• Follow the engineering instructions (AWA/IL) of the
device concerned.
• Only suitably qualified personnel in accordance with
EN 50110-1/-2 (VDE 0105 Part 100) may work on 
this device/system.
• Before installation and before touching the device ensure
that you are free of electrostatic charge.
• The functional earth (FE) must be connected to the
protective earth (PE) or to the potential equalisation. The
system installer is responsible for implementing this
connection.
• Connecting cables and signal lines should be installed so
that inductive or capacitive interference does not impair
the automation functions.
• Install automation devices and related operating elements
in such a way that they are well protected against
unintentional operation.
• Suitable safety hardware and software measures should
be implemented for the I/O interface so that a line or wire
breakage on the signal side does not result in undefined
states in the automation devices.
• Ensure a reliable electrical isolation of the low voltage for
the 24 volt supply. Only use power supply units complying
with IEC 60 364-4-41 (VDE 0 100 Part 410) or HD 384.4.41 S2.
• Deviations of the mains voltage from the rated value must
not exceed the tolerance limits given in the specifications,
otherwise this may cause malfunction and dangerous
operation.
• Emergency stop devices complying with IEC/EN 60 204-1
must be effective in all operating modes of the automation
devices. Unlatching the emergency-stop devices must not
cause restart.
• Devices that are designed for mounting in housings or
control cabinets must only be operated and controlled
after they have been installed with the housing closed.
Desktop or portable units must only be operated and
controlled in enclosed housings.
• Measures should be taken to ensure the proper restart of
programs interrupted after a voltage dip or failure. This
should not cause dangerous operating states even for a
short time. If necessary, emergency-stop devices should
be implemented.
• Wherever faults in the automation system may cause
damage to persons or property, external measures must
be implemented to ensure a safe operating state in the
event of a fault or malfunction (for example, by means of
separate limit switches, mechanical interlocks etc.).
I