VersiStart i III
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15E – Shorted SCR Action
Options:
3-Phase Control Only (default)
PowerThrough
Description: Selects whether the soft starter will allow PowerThrough operation, if the soft starter is damaged on one phase. The soft
starter will use two-phase control, allowing the motor to continue operating in critical applications.
x
PowerThrough can only operate with internally bypassed soft starters.
x
PowerThrough is only available with in-line installations. If the starter is installed inside delta, PowerThrough will
not operate.
x
PowerThrough remains active until '3-Phase Control Only' is reselected.
A shorted SCR or a short within the bypass contactor will trip the starter on ‘Lx-Tx shorted’. If PowerThrough is enabled,
the trip can be reset and subsequent starts will use PowerThrough two-phase control; however not all features will be
available. The trip LED will flash and the display will indicate ‘2 Phase - Damaged SCR'.
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.
CAUTION
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.
PowerThrough operation does not support Adaptive Control soft starting or soft stopping. In PowerThrough, the VersiStart i
III 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.
15F – Jog Torque
The VersiStart i III 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 VersiStart i III 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. Refer to Brake for details.
15I – Brake Torque-2
Range:
20% - 100%
Default:
20%
Description: Sets the amount of brake torque the VersiStart i III 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.
