Motor FLC
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).
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9.
A
INPUT RATING:
200-440VAC, 50/60Hz, 3PH
OUTPUT FLC:
xxAAC53b4-6:354, 30 kW @ 400V
AUXILIARY CONTACTS: 5A@ 250VAC/360VA, 5A @30VDC Resistive
WITHSTAND CURRENT: 5000ARMS, 600VAC max.
POWER CONTACTS:
#10 - #2AWG, 6 - 35 mm2(3-5 Nm, 2.2-3.7 lb-ft)
AUXILIARY CONTACTS: 20 - 16AWG, 0.75- 1.5 mm2(0.5 Nm, 4.5 lb-in)
Motor FLC
Soft starter FLC
Soft Stop Time
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.
V
ol
tag
e
Time
Excess Start Time
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).
C
ur
rent
Time
Auxiliary Relay Function
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.
Time
Phase Sequence Protection
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.
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.
•
Digistart D2 auxiliary relay and phase sequence protection examples
COM1, RLO1
Trip
Run
Any
Any
FWD
FWD
Phase sequence
08859.
A
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.
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Digistart D2: User Guide
Issue: F