Emerson CS Serie Guia Del Usuario página 14

Safety Rating Data
Information
Motor Full Load Current
Soft Stop Time
Excess Start Time
Auxiliary Relay Function
Phase Sequence Protection
NOTE Auxiliary relay function and phase sequence are configured using a shared switch. Set the
auxiliary relay function as required, then set phase sequence protection.
Figure 5-2 Digistart CS auxiliary relay and phase sequence protection
COM1, RLO1
Run
Trip
Any
Any
FWD
FWD
Phase sequence
COM1, RLO1
Run
Trip
Any
Any
FWD
FWD
Phase sequence
14
Mechanical Electrical
Installation Installation
Configure the soft starter to match the motor's
full load current (FLC).
Configure according to the motor's nameplate
current. Divide the motor's FLC by the soft
starter's maximum current rating (on the soft
starter's nameplate label).
Select the soft stop ramp time (D).
Soft stop extends the time soft starter takes to
reduce voltage to zero.
The ramp time does not control the time the
motor will take to stop completely.
Configure the soft starter's excess start time
protection.
Select a time slightly longer than the motor
requires for a normal healthy start. The soft
starter will trip if the start does not complete
within the selected time (E).
Select the function of the soft starter's
programmable output (terminals COM1, RLO1).
When set to "Run", the relay will operate when
the soft start is complete. When set to "Trip", the
relay will operate when the soft starter trips.
Configure the soft starter's phase sequence
protection.
Select the allowable phase sequences. A setting
of "Fwd" allows forward sequence (positive
rotation) only and a setting of "Any" defeats the
protection.
Relay action: After a start command, the relay will operate when the soft start is
complete.
The relay state will match the status of the Run LED. The relay will open if the
starter trips.
Phase sequence protection: The soft starter will allow forward sequence only
(positive rotation). If the soft starter detects negative sequence, the starter will trip
and the Ready LED will flash 7 times. Remove power, reverse the phase
connections, then reset the starter.
Relay action: The relay will close when a trip occurs. Reset the trip and resume
operation.
Phase sequence protection: The soft starter will allow any phase sequence.
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Diagnostics
Programmable
Parameters
Technical Data Options
Time
Time
Time
Digistart CS User Guide
Issue: 2