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➢
Phase Loss (Motor Side)
If any of the phases on the load (motor) side becomes
open the RSGD will trip after 5 seconds to protect the
motor from running/ starting on 2 phases.
➢
Locked Rotor
If a current
≥ 8xFLC setting for 100 msec is detected, the
RSGD will trigger the locked rotor alarm.
➢
Over Temperature
The RSGD constantly measures its internal temperature.
If the maximum internal temperature is exceeded (for a
minimum of 0.5sec) an over-temperature alarm is
triggered. This condition can be triggered by too many
starts per hour, an over-load condition during starting
and/or stopping or a high surrounding temperature.
➢
Overload
The overload alarm can be triggered in case of the
following conditions:
a. Measured current > 1.05 x FLC during transition from
ramp-up to bypass.
b. High resistance (> 1000 ohm) at P1, P2 terminals.
c. Load current > FLC. Trip time will vary according to
Trip Class 10.
The soft starter will not respond to a start command if
it is in Alarm state.
Real-time alarm visualisation is also available on the
RSGD units. The alarm indicator (red LED) flashes in
a specific sequence depending on the alarm that is
present.
