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Initial Power up and Discovering
16
SR2MAN01 11/2007
WARNING
INVOLUNTARY OPERATION OF EQUIPMENT
Precautions:
z Power off the smart relay prior to installation, deinstallation, wiring, maintenance
or operation of the unit.
z The emergency stop and the locking circuits should be configured in the
software program of the smart relay.
z In the event of failure of the relays or transistors in the output modules of the
smart relay, the outputs should remain activated or deactivated. For output
signals that might lead to serious accidents, install a control circuit external to
the smart relay.
z Install the modules according to the environmental operation conditions
specified in the instruction bulletin.
z Do not attempt to dismantle, repair or modify the smart modules.
z Use an IEC 60127 approved fuse, in conformity with the requirements for
current and voltage, to protect the power line and output circuits.
Failure to follow this instruction can result in death, serious injury, or
equipment damage.
WARNING
RISK OF UNEXPECTED OPERATION
Special case of the use of the SR2COM01 modem communication extension.
Sending commands may lead to modification of the status of smart relay outputs
or accidental enabling of controlled equipment.
It is important to:
z Know how the commands will affect the process or the controlled equipment,
z Take any preventive measures necessary to ensure safety when making
modifications.
Failure to follow this instruction can result in death, serious injury, or
equipment damage.