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Variable Speed Drive


VSD Micro Drives Series II Variable Speed Spec

VSD Open Drives Series II Variable Speed Spec

Micro Drives (Series II)

Our VSD Series II Micro Drives represent the next generation of solutions to solve your unique HVAC control needs. With a compact design, impressive torque response and easy setup, our Series II Micro Drives offer increased efficiency and long-lasting product life. Our Micro Drives are microprocessor-based drives that provide quiet operation, high motor efficiency, and smooth, low-speed performance in any HVAC application. Choose from single- and three-phase input devices ranging from 1/4 – 7.5 hp at 115V – 575V.

  • Temp controlled fan
  • 50˚C (122˚F) ambient rating
  • Conformal coated printed circuit boards
  • High overload rating
  • Digital display interface with diagnostics
  • On-board macros
  • PC Software
  • Local/Remote button
  • Extend the life of the unit
  • Improved reliability
  • Corrosion resistant circuit boards
  • Fully programmable protections
  • Displays both fault and alarm status
  • Macros set default values based on the application
  • Real time monitor VSD motor data/compare parameter sets
  • Toggle operation between the keypad, I/O terminals, and fieldbus


Open Drives (Series II)

At Johnson Controls, we’ve engineered our VSD Series II Open Drives to deliver outstanding HVAC control solutions at an exceptional value. Our patented Active Energy Control software extends beyond the drive to maximize motor efficiency at any speed. These are more than just drives – our Series II Open Drives feature an ultra-efficient DC capacitor and a power structure that allows the drives to consume less energy, lowering greenhouse gases and saving you money.

  • Active Energy control algorithm
  • Graphic display and keypad
  • On board communications (RS485:ModBus, BacNet, N2 Ethernet: BacNet IP, ModBus TCP)
  • On board I/O (6DI, 3RO, 2AI, 1AO)
  • Conformal coated circuit boards
  • Real-time clock with battery backup
  • 5% DC link choke
  • Thin metal film bus capacitors
  • Industry leading energy efficient solution
  • Easy menu navigation / Multi-monitoring capability
  • Support multiple protocols for communication with Building Automation System
  • Designed feature set for HVAC applications
  • Corrosion resistant circuit boards
  • Interval scheduling based on time and day
  • Meets EMC Class C2 requirements
  • Extended shelf life