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Initial Power up and Discovering
14
SR2MAN01 11/2007
Safety
Preliminary
Advice
Preliminary advice and general safety precautions relating to installing smart relays:
z
Remember that only qualified personnel are authorized to implement the smart relay.
z Read this instruction sheet and the User Guide to learn the procedures prior to
installing, wiring, operating, maintaining of controlling the smart relay.
z The end user should keep this User Guide and the product instructions sheet.
z
Install the smart relay by following the instructions in the instruction bulletin and the User
Guide. Improper installation may result in failure or malfunction of the smart relay.
z Make the necessary ground and short circuit the connections.
z Check the operating conditions, as described in the User Guide. If you are unsure
of the technical characteristics, contact Schneider Electric.
z Fluctuations or variations in the power supply voltage should not exceed the
tolerance thresholds stated in the technical characteristics, as they may lead to
operating failures and potentially dangerous situations.
z Take any steps necessary to ensure that an application interrupted by a power
failure continues to operate correctly after restoring power and make sure also
that no dangerous situation whatsoever arises.
z Take any steps necessary to prevent involuntary activation of the relay.
z Automation and control devices must be installed in areas where they are
protected against any risk of involuntary activation.
z
Ensure that all connections to the control system meet applicable safety standards.
z
Ensure that you comply with all applicable standards for emergency stop systems in
order to avoid potentially dangerous situations. Ensure that releasing the emergency
stop system does not cause the automated system to suddenly restart.
z Install the smart relay only in environments described in the User Guide. Do not
use the smart relay in environments subject to excessive temperatures, elevated
relative humidity, condensation, corrosive gases, or excessive shocks.
z The smart relay should be used in "Pollution level 2" environments. This level
defines the effect of pollution on the insulation.
z Definition of level 2 Pollution: Only non-conductive pollution arises, except for
occasional temporary conductivity caused by condensation. Do not use smart
relays in environments lower than those specified in IEC Standard 60664-1.
z Use appropriate wires according to current and voltage requirements. Tighten the
screws of the terminal according to the specified torque.
z Use an IEC 60127 approved fuse, in conformity with the requirements for current
and voltage, to protect the power line and output circuits. This is not required
when a device including a smart relay is intended for Europe.
z Use an EU-approved switch. This is not required when a device including a smart
relay is intended for Europe.