Toshiba VF010H05 - Manual (Page 68)

JKSSS+ Series - 62
JKSSS+ Series 2.3 - 4.2KV
SP.8 Overload Curve Configuration (Setpoint Page 8)
(Security Level: 3)
SP8.3 Area Under Curve Protection: If enabled, this
secondary start protection uses both the basic start
protection and the area under the curve protection.
• Max I*I*T Start: The maximum I 2 T allowed during
start. If the I 2 T to start exceeds this number then the
soft starter will generate a trip.
SP8.4 Current Over Curve: Learns the motor’s starting
characteristics and protects the motor based upon
the learned curve. It is useful when commissioning a
new motor.
• Learn: The unit reads the motor’s starting
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.
• Learned Start Curve Basis: The maximum allowed
deviation above or below the start curve before a trip
is generated.
• Time for Sampling: The time the soft starter
continues to sample the start curve characteristic
during learn the mode.
MENU
PAGE 8 OVERLOAD
CURVE CONFIGURATION BASIC RUN
OVERLOAD CURVE
(Hit DOWN ARROW seven times)
RUN CURVE LOCKED
ROTOR TIME: O/L CLASS
Range: 1 - 30 SEC, O/L CLASS
RUN LOCKED ROTOR
CURRENT: 600% FLA
BASIC START
OVERLOAD CURVE
AREA UNDER CURVE
PROTECTION: DISABLED
CURRENT OVER
CURVE: DISABLED
Range: ENABLED or DISABLED
Options: DISABLED, LEARN
or ENABLED
COAST DOWN TIMER
TIME: DISABLED
START CURVE LOCKED
ROTOR TIME: O/L CLASS
NUMBER OF STARTS PER
HOUR: DISABLED
TIME BETWEEN STARTS
TIME: 5 MIN
MAX I*I*T START
: 368 FLA*FLA*SEC
ACCELERATION TIME
LIMIT: 30 SEC
LEARNED START CURVE
BIAS: 10%
Range:1 - 60 MIN, DISABLED
Increments of 1
Range:1 - 30 SEC, O/L CLASS
Increments of 1
Range:1 - 300 SEC, DISABLED
Increments of 1
Range: 1 - 6, DISABLED
Increments of 1
Range:1 - 60 MIN, DISABLED
Increments of 1
Range:1 - 2500, FLA*Time (Sec)
Increments of 1
Range: 5 - 40%
Increments of 1
START LOCKED ROTOR
CURRENT: 600% FLA
TIME FOR SAMPLING
: 30 SEC
Range: 400 - 800%
Increments of 10
Range: 1 - 300 SEC
Increments of 1
Range: 400 - 800%
Increments of 1
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.