MX150 Microprocessor Controller

Features at a Glance

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