Specifications
Programming Menu Softstart UK
15E – Shorted SCR Action
Options: 3-Phase Control Only (default)
PowerThrough
Description: Selects whether the soft starter will allow PowerThrough operation. For critical
applications this allows the soft starter to control the motor with two-phase control, if
the soft starter is damaged on one phase. PowerThrough only operates after the soft
starter has tripped on "Lx-Tx Shorted" and has been reset.
CAUTION
PowerThrough uses a two-phase soft start technology and additional care is required when sizing
circuit breakers and protection. Contact your local supplier for assistance.
NOTE
PowerThrough remains active until '3-Phase Control Only' is reselected.
PowerThrough operation does not support Adaptive Control soft starting or soft stopping. In
PowerThrough, the LV-DS will automatically select constant current soft starting and timed voltage
ramp soft stopping. If PowerThrough is enabled, parameters 2C and 2B must be set appropriately.
PowerThrough can only operate with internally bypassed soft starters.
NOTE
PowerThrough is only available with in-line installations. If the starter is installed inside delta,
PowerThrough will not operate.
The starter will trip on Lx-Tx Shorted on the first start attempt after control power is applied.
PowerThrough will not operate if control power is cycled between starts.
15F – Jog Torque
The LV-DS can jog the motor at a reduced speed, which allows precise positioning of belts and
flywheels. Jog can be used for either forward or reverse operation.
Range: 20% - 100% Default: 50%
Description: Sets the current limit for jog operation.
15G – Brake Torque
Range: 20% - 100% Default: 20%
Description: Sets the amount of brake torque the LV-DS will use to slow the motor.
15H – Brake Time
Range: 1 - 30 (seconds) Default: 1 second
Description: Sets the duration for DC injection during a braking stop.
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NOTE
Parameter 15H is used in conjunction with parameter 2I. See Brake on page 29 for details.
15I – Brake Torque-2
Range: 20% - 100% Default: 20%
Description: Sets the amount of brake torque the LV-DS will use to slow the motor.
15J – Brake Time-2
Range: 1 - 30 (seconds) Default: 1 second
Description: Sets the duration for DC injection during a braking stop.
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