Multiple Ramp Types to Start any Load
Closed Loop Current Ramp or Voltage Ramp, with or without Current Limit
Built-in Decel Control, Dual Ramp, Kick Start and Jog Modes
Unit Overload Capacity (% FLA)
350% - 30 Seconds
600% - 10 Seconds
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 5 - 30, enabled when starter detects motor is "At-Speed"
- Reset: Manual or automatic, selectable via programming. Remote reset available.
Real-Time Thermal Modeling
Continuously calculates motor operating temperature even when the motor is not running.
Retentive Thermal Memory
Remembers the thermal condition of the motor even in the event of a power brown-out or black-out when power is restored.
Extrapolates motor temperature using a real-time clock.
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.
120V AC (customer supplied),240V (optional)
24V DC dry contact inputs, no external DC power supply required
PTC thermistor input can also be used for E-stop or external overload relay.
Equipment Ground Fault
Residual current method with adjustable trip delay.
RS485 Modbus Communications
Full control and/or status monitoring over network or direct to a PC.
Phase Current Imbalance/Loss Protection
Trip level: 5 - 30% current imbalance between any two phases with trip delay.
Trips on phase current or voltage loss.
Phase rotation trip can be set to A-B-C , A-C-B or disabled.
Electronic Shear Pin Protection
Trip level: 100-300% of motor FLA with trip delay.
Load Loss (Under Current) Trip Protection
Trip level: 10-90% of motor FLA with trip delay.
Phase Loss Motor Duty Cycle Protection
Back-spin/coast-down, starts-per-hour or minimum time between starts lockouts. Restart delay after a power failure.
Trips at 10x unit current rating during run. Checks for shorted load prior to each start.
Locks out on any single shorted SCR (defeatable) or can provide shunt trip function if multiple SCRs short or bypass contactor is welded closed.
Monitoring phase current, ground current and motor thermal capacity.