Motor; Adjusting Parameters; Electrical Installation - Emerson CS Serie Guia Del Usuario

Rating Data
Safety
Information
1.6

Motor

Ensure the motor is installed in accordance with the manufacturer's recommendations. Ensure the motor
shaft is not exposed.
1.7

Adjusting parameters

Some parameters have a profound effect on the operation of the starter. They must not be altered without
careful consideration of the impact on the controlled system. Measures must be taken to prevent unwanted
changes due to error or tampering.
1.8

Electrical installation

1.8.1 Electrical shock risk
The voltages present in the following locations can cause severe electric shock and may be lethal:

AC supply cables and connections

Output cables and connections

Many internal parts of the starter, and external option units
The AC supply must be disconnected from the starter using an approved isolation device before any cover is
removed from the starter or before any servicing work is performed.
1.8.2 Power-up procedure
Always apply control voltage before (or with) mains voltage.
After transportation, mechanical shock or rough handling there is a possibility that the bypass contactor may
have latched into the on state. To prevent the possibility of the motor starting immediately, on first
commissioning or operation after transportation, always ensure that the control supply is applied before the
power, so that the contactor state is initialised.
1.8.3 STOP function
The STOP function does not remove dangerous voltages from the starter, the motor or any external option
units.
1.8.4 Equipment supplied by plug and socket
The control supply terminals of the starter are connected to the internal capacitors through rectifier diodes
which are not intended to give safety isolation. If the plug terminals can be touched when the plug is
disconnected from the socket, a means of automatically isolating the plug from the starter must be used (e.g.
a latching relay).
1.8.5 Short circuit
Digistart CS soft starters are not short circuit proof. After severe overload or short circuit, the operation of the
soft starter should be fully tested by an authorised service agent.
Digistart CS User Guide
Issue: 2
Mechanical Electrical
Installation Installation
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