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DXT Advanced Digital Soft Starter


 

AC Supply Voltage
200 to 600 Vac

HP Ratings

10 to 1125 HP

(39 to 1250 Amps)

 

Acceleration Adjustments Ramp types

Voltage ramp or current ramp Starting torque 0 - 100% of line voltage or 0 - 600% of FLA Ramp time 1 to 120 seconds Current limit 200 - 600%

Retentive Thermal Memory

Overload circuit retains thermal condition of the motor regardless of control power status. Unit uses real time clock to adjust for off time

Dual Ramp Settings*

Four (4) programmable ramp options

Dynamic Reset Capacity

Overload will not reset until thermal capacity in the motor is sufficient for a successful restart. Starter learns and retains this information from previous starts.

Deceleration Adjustments

Begin decel level 0 - 100% of line voltage

Stop level 0 to 1% less than begin decel

Decel time 1 - 60 seconds

Phase Current Imbalance/Loss Protection

Imbalance trip level 5 - 30% current between any two phases Imbalance trip delay 1 - 20 seconds

Electronic Shear Pin Protection Shear pin trip level 100 - 300% of motor FLA Shear pin trip delay 1 - 20 seconds

Jog Settings*

Voltage jog 5 - 100%

Load Loss Trip Protection Under current trip level 10 - 90% of motor FLA Under current trip delay 1 - 60 seconds Coast Down (Back Spin) Lockout Timer Coast down time 1 - 60 minutes

Kick Start Settings

Kick Voltaqe 10 - 100%

Kick start time 0.1 - 2 seconds

Starts-per-Hour Lockout Timer

Starts-per-hour 1 - 10 successful starts per hour

Time between starts 1 - 60 min. between start attempts

 

Programmable Output Relays

Protection 4 relays; 1 Form C (DPDT), 3 Form A (SPST NO)

5A 240VAC max. (1200VA),

Individually programmable to 19 functions

Event History

Up to 60 events; data includes event, time, date and current for each phase and ground fault current at time of event

Options

Ground Fault: Residual or Zero Sequence

RTD Inputs: Up to 12 RTD’s of any type with biasing or override protection curve

Protection

Start & Run Protection

Two programmable overload trip curves allow for the thermal capacity required to start the load while providing motor overload protection needed during the run time.

Start: Programmable for Class 5 - 30

Run: Programmable for Class 5 - 30, enabled when starter detects motor is "At-Speed"

Reset: Manual or automatic, selectable via programming

The DXT Series recognizes motor cool-down rates are a function of the run time and that sometimes a motor will cool faster if allowed to run.

Metering Functions

Motor Load: Percent of FLA

Current Data: A, B, C Phase Current, Avg Current, Ground Fault

Thermal Data: Remaining thermal register; thermal capacity to start

Start Data: Avg Start time, Avg Start Current, Measured Capacity to start, time since last start

RTD Data (Option): Temperature readings from up to 12 RTDs (6 stator RTDs)

Voltage Metering: V, KW, KVAR, PF, KWH, Demand