Johnson Controls

VSD Series II Variable Speed Micro Drives

Johnson Controls® VSD Series II Variable Speed Micro Drives (JC-VSM II) specifically engineered for today’s HVAC mid-market applications. The size and simplicity of the Micro Drive make it ideal for hasslefree installation and application programming

These micro-processor-based drives have standard features that can be programmed to tailor the drive’s performance to suit a wide variety of application requirements. The JC-VSM II product line uses a 32-bit microprocessor and insulated gate bipolar transistors (IGBTs) that provide quiet operation, high efficiency, and smooth low-speed performance for three-phase induction motors.

Programmable Parameters

  • Application macros: basic, pump, fan, and high-load
  • Programmable start and stop and reverse signal logic (sinking or sourcing)
  • Reference scaling
  • PID Controller - provides stand-alone, closed-loop control
  • DC brake at start and stop
  • Programmable V/Hz curve
  • Adjustable switching frequency
  • Auto restart function after fault
  • Protections and supervisions (all fully programmable; off, warning, and fault)

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