MX150 Microprocessor Controller

MX150 Microprocessor Controller

Rating Range Switch Dependent
Transfer Type Application Dependent
Switch Type Application Dependent
Undervoltage Dropout for Source 1 and Source 2 75-98% of nominal
Undervoltage Restore for Source 1 and Source 2 85-100% of nominal
Underfrequency Dropout for Source 1 and Source 2 88-98% of nominal
Technical Summary
Rating Range Switch Dependent
Transfer Type Application Dependent
Switch Type Application Dependent
Controller Specifications
Undervoltage Dropout for Source 1 and Source 2 75-98% of nominal
Undervoltage Restore for Source 1 and Source 2 85-100% of nominal
Underfrequency Dropout for Source 1 and Source 2 88-98% of nominal
Underfrequency Restore for Source 1 and Source 2 90-100% of nominal
Delay for Engine Cool Down (U) 0-10 seconds
Delay Transfer to Nonpreferred Source (W) 0-5 minutes
Delay NeutralTransition Time Delays (DT,DW) 0-10 minutes
Storage Temperature (-30˚C - 75˚C ), -22˚F - 167˚F
Operating Temperature Ambient 40 - 400 amp molded shell (-20˚C to 65˚C) , -4˚F to 149˚F
40 - 4000 amp all others (-20˚C to 60˚C), -4˚F to 149˚F

Features and Benefits

  • Digital timer and adjustments with 1 second resolution
  • Long lasting LED indicators and an easy-to-view LCD display
  • Inputs optoisolated for high electrical immunity to transients and noise
  • Digital voltage and frequency adjustments with1% resolution
  • Voltage and frequency sensing includes:
    –Voltage imbalance detection between phases
    –Under frequency sensing on source 2
    –3 Phase under voltage sensing on source 1(S1)
    – Normal and single phase sensing onsource (S2)
    – Emergency
  • Modular pre-signal option easily integrated into the system (e.g. elevator pre-signal and motor load disconnect)
  • Universal Motor Disconnect (UMD) available for programming to pre-signal, post-signal or both
  • Line voltage transients are isolated from the control board using remote transformers
  • Simplified major components and modules for easy replacement
  • On-board diagnostics including voltage frequency, control and timing
  • Nonvolatile memory – battery backup not required during normal source outage
  • External communication available through LonWorks/ModBus network interface (RS232,RS 422, and RS 485 are also available)
  • Maintained and momentary test positions are available to the controller
  • Test mode allows manual bypass of all transfer timers when applicable
  • Automatic daylight savings adjustment available

User-Friendly Operation

  • LEDs for continuous monitoring of switch position, source availability, exercise time delay operation and diagnostics
  • Simplified adjustment for voltage, frequency and time delay settings
  • Close differential 3 phase under-voltage sensing of source 1, factory standard setting 90% pickup,80% dropout (adjustable); under-frequency sensing of the source 1 factory setting 95% pickup (adjustable)
  • Voltage and frequency sensing of source 2,factory standard setting 90% pickup voltage,95% pickup frequency (adjustable)
  • Test switch (fast test/load/no load) to simulate normal source failure – automatically bypassed should source 2 fail
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