Leroy Somer Nidec Digistart D4 Guide De L'utilisateur page 8

Avertissements
FOR YOUR SECURITY
 The STOP function of the soft starter does not isolate dangerous voltages from
the output of the starter. The soft starter must be disconnected by an approved
electrical isolation device before accessing electrical connections.
 Soft starter protection features apply to motor protection only. It is the user's
responsibility to ensure safety of personnel operating machinery.
 The soft starter is a component designed for integration within an electrical
system; it is therefore the responsibility of the system designer/user to ensure
the system is safe and designed to comply with relevant local safety standards.
WARNING – ACCIDENTAL STARTS
In some installations, accidental starts may pose an increased risk to safety of
personnel or damage to the machines being driven. In such cases, it is
recommended that the power supply to the soft starter is fitted with an isolating
switch and a circuit-breaking device (eg power contactor) controllable through an
external safety system (eg emergency stop, fault detector).
WARNING – STARTER MAY START OR STOP UNEXPECTEDLY
The soft starter will respond to control commands from various sources, and could
start or stop unexpectedly. Always disconnect the soft starter from mains voltage
before accessing the starter or load.
WARNING – DISCONNECT MAINS BEFORE ACCESSING STARTER OR LOAD
The soft starter has built-in protections which can trip the starter in the event of
faults and thus stop the motor. Voltage fluctuations, power cuts and motor jams
may also cause the motor to trip.
The motor could restart after the causes of shutdown are rectified, which may be
dangerous for personnel. Always disconnect the soft starter from mains voltage
before accessing the starter or load.
WARNING
Do not apply mains voltage to the starter until all wiring is complete.
WARNING
Always apply control voltage before (or with) mains voltage.
WARNING
If the start input is closed when control voltage is applied, the starter will attempt to
start.
Check that the start/stop input is open before applying control voltage.
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