Motor and Starter Protection Occurance Table
42
Active During
Timing And Occurrence
Start Run Stop
Soft
Stop
Too many starts with Start Inhibit period
√
Electronic Overload
with Curve selection
√
Shear Pin
(Jam) *
Default setting
Starter Protection – trip function at 850% FLC
√ √ √
Motor Protection – trip function
During Start – factory set at 850% FLA in less than 1 cycle.
√ √
During Run
– adjust. 200 – 850% FLA within 1 cycle
√
Programmable setting (Dip switch # 2 On)
Starter Protection – trip function at 850% FLC
√ √ √
Motor Protection – Alarm & Trip functions
On fault “Immediate Relay” acts as Alarm w/adj. delay – If fault is cleared within the time delay, trip will not occur
During Start – preset at 850% FLA, adjust. delay (Imm. Relay)
√ √
During Run
– adjust. 200-850% FLA adjust. delay (Imm. Relay)
√
Under current adjustable time delay
√
Phase Loss
√ √ √
Phase sequence
√ √ √
Under voltage with adjustable time delay. Time delay is overriden in
case of “No-Volt”.
√ √ √
Over voltage
with adjustable time delay
√ √ √
Long start time (Stall protection)
√
Shorted SCR
√ √
Wrong connection (Load Loss)
√
External fault – input from a N.O. contact
√ √ √ √
SCR protection by Metal Oxide Varistors (MOV)
√ √ √ √
Starter over-temperature
√ √ √ √
Starter internal test, when “On” LED is lit.
√ √ √ √
Motor Insulation test (option) – two levels for Alarm & Trip when
installed, operates upon no main voltage
√
Motor Thermistor (option) – programmable PTC/NTC, With
adjustable Trip level.
√ √ √ √
* Available from software version 5/11/97
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