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JKSSS+ Series
SP.8 Overload Curve Configuration (Setpoint Page 8)
(Security Level: 3)
MENU
(Hit DOWN ARROW seven times)
PAGE 8
OVERLOAD
CURVE CONFIGURATION
Configures the unit's start and
run protection mode. The unit has
independent start and run curve
protection and the settings can be
based on the OL Class or set by the
motor's locked rotor current and time.
SP8.1 Basic Run Overload Curve
• Run Curve Locked Rotor
Time: Set the locked rotor time
to the OL Class default chosen
in Setpoint Page 1 or set the
time in seconds. This is the
time the locked rotor condition
exists before a trip occurs.
• Run Locked Rotor Current:
The current the motor draws
with full voltage on the windings
and no rotor movement (as a
percent of motor FLA). Refer to
the nameplate data or contact
the motor manufacturer.
• Coast Down Timer: If enabled,
this prevents the motor from
restarting for the programmed
amount of time, after a stop
command is given.
SP8.2 Basic Start Overload Curve
• Start Curve Locked Rotor Time: The locked
rotor time can be set to the OL Class default
chosen in Setpoint Page 1 or to a specific
time. The overload condition must exist for the
programmed amount of time before a trip occurs.
• Start Locked Rotor Current: The current the
motor draws with full voltage on the windings and
no motor movement (as a percent of motor FLA).
Refer to the motor nameplate data or contact the
motor manufacturer.
• Acceleration Time Limit: If the motor does not
enter run mode (reach at speed) within the preset
time, the unit trips on acceleration time limit.
• Number of Starts per hour: If enabled, this
limits the maximum number of starts permitted per
hour. This setpoint allows a maximum of 6 starts
per hour. Contact motor manufacturer.
• Time Between Starts: If enabled, the soft
starter prevents another start attempt until the
programmed time has expired.
JKSSS+ Series - 62
BASIC RUN
OVERLOAD CURVE
BASIC START
OVERLOAD CURVE
AREA UNDER CURVE
PROTECTION: DISABLED
Range: ENABLED or DISABLED
CURRENT OVER
CURVE: DISABLED
Options: DISABLED, LEARN
or ENABLED
SP8.3 Area Under Curve Protection: If enabled, this
• Max I*I*T Start: The maximum I
SP8.4 Current Over Curve: Learns the motor's starting
• Learn: The unit reads the motor's starting
• Learned Start Curve Basis: The maximum allowed
• Time for Sampling: The time the soft starter
RUN CURVE LOCKED
ROTOR TIME: O/L CLASS
Range: 1 - 30 SEC, O/L CLASS
COAST DOWN TIMER
TIME: DISABLED
Range:1 - 60 MIN, DISABLED
Increments of 1
START CURVE LOCKED
ROTOR TIME: O/L CLASS
Range:1 - 30 SEC, O/L CLASS
Increments of 1
ACCELERATION TIME
LIMIT: 30 SEC
Range:1 - 300 SEC, DISABLED
Increments of 1
NUMBER OF STARTS PER
HOUR: DISABLED
Range: 1 - 6, DISABLED
Increments of 1
TIME BETWEEN STARTS
TIME: 5 MIN
Range:1 - 60 MIN, DISABLED
Increments of 1
MAX I*I*T START
: 368 FLA*FLA*SEC
Range:1 - 2500, FLA*Time (Sec)
Increments of 1
LEARNED START CURVE
BIAS: 10%
Range: 5 - 40%
Increments of 1
secondary start protection uses both the basic start
protection and the area under the curve protection.
start. If the I
T to start exceeds this number then the
2
soft starter will generate a trip.
characteristics and protects the motor based upon
the learned curve. It is useful when commissioning a
new motor.
characteristics. Start the motor and allow it to come
to full speed. The start feedback enables the motor
protection based on the learned start curve.
deviation above or below the start curve before a trip
is generated.
continues to sample the start curve characteristic
during learn the mode.
2.3 - 4.2KV
RUN LOCKED ROTOR
CURRENT: 600% FLA
Range: 400 - 800%
Increments of 1
START LOCKED ROTOR
CURRENT: 600% FLA
Range: 400 - 800%
Increments of 10
TIME FOR SAMPLING
: 30 SEC
Range: 1 - 300 SEC
Increments of 1
T allowed during
2
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