CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONSM60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2-252Availability: 1 per CT bank with a minimum of 2BREAKER FLASHOVEROperating quantity: phase current, voltage, and voltage differencePickup level voltage: 0.004 to 1.500 pu in steps of 0.001Dropout level voltage: 97 to 98% of pickupPickup level current: 0.020 to 1.500 pu in steps of 0.001Dropout level current: 97 to 98% of pickupLevel accuracy: ±0.5% or ±0.1% of rated, whichever is greaterPickup delay: 0 to 65.535 s in steps of 0.001Timer accuracy: ±3% of operate time or ±42 ms, whichever is greaterOperate time: <42 ms at 1.10 × pickup at 60 HzBREAKER RESTRIKEPrinciple: detection of high-frequency overcurrent condition ¼ cycle after breaker opensAvailability: one per digital signal processor (DSP)Pickup level: 0.1 to 2.00 pu in steps of 0.01Reset delay: 0.000 to 65.535 s in steps of 0.001REDUCED VOLTAGE STARTINGMode: current only, current and timer, current or timerTransition level: 25 to 300% of FLA in steps of 1Timer: 1.0 to 600.0 seconds in steps of 0.1Timer accuracy: ±50 msRTD PROTECTIONPickup: 1 to 249°C in steps of 1Dropout level: 2°C of pickupTimer accuracy: <1 sElements: trip and alarmREMOTE RTD PROTECTIONPickup level: 1 to 200°CDropout level: 2°C of pickupTime delay: <10 sElements: trip and alarmRRTD COMMUNICATION FAILUREPickup level: no communicationsTime delay: ≈10 sTRIP BUS (TRIP WITHOUT FLEXLOGIC)Number of elements: 6Number of inputs: 16Operate time: <2 ms at 60 HzTimer accuracy: ±3% or 10 ms, whichever is greater2.5.2 User-programmable elementsFLEXLOGICProgramming language: Reverse Polish Notation with graphical visualization (keypad programmable)Lines of code: 1024Internal variables: 64Supported operations: NOT, XOR, OR (2 to 16 inputs), AND (2 to 16 inputs), NOR (2 to 16 inputs), NAND (2 to 16 inputs),latch (reset-dominant), edge detectors, timersInputs: any logical variable, contact, or virtual inputNumber of timers: 32
