Electronic Bypass

Economical and Efficient Fan and Pump Control

VFD Electronic Bypass

1.0 hp – 300 hp (0.75 kW – 220 kW)

208 V | 230 V | 460 V

Nidec Control Techniques’ HVAC AC Drive H300 Electronic Bypass package with HMI, provides touch screen access to drive and bypass options, status information and Hand/Off/Auto control. The HMI screens provide a quick, easy to understand interface for system status and operating modes.

Reduce installation time with a setup wizard for motor nameplate data entry for easy motor nameplate data entry and selection of system operation preferences. These FPCs (Fan and Pump Controller) are easy to specify. Fire Alarm modes and Fireman's Override are built in.

Damper control and automatic transfer to bypass on VFD fault provide the flexibility to meet the most demanding installations without adding options. These FPCs are highly reliable Fan and Pump Control packages that feature a three-contactor electronic bypass control. hvac h300 bypass

Electronic Bypass Features
  • 3-contactor electronic bypass
  • Digital AC drive featuring dynamic and quadratic motor flux V/Hz mode (default), open loop vector mode, or rotor flux control* (Affinity/HVACR H300 AC Drive only)
  • Speed reference, 0-10 VDC, 0-20 mA, 4-20 mA
  • Linear and S-type accel and decel ramps
  • Whisper-quiet switching frequencies to 18kHz
  • 1 – 150 hp (208 V), 1 – 150 hp (230 V), 1 – 300 hp (460 V)
  • RS485 port for Modbus RTU, BACNet*, and Metasys N2* communications
  • Bright VFD keypad
  • Built-In EMC/RFI filter
  • Complimentary PC software tools
*Affinity/H300-only Features

  • Options
    • Input circuit breaker
    • Fused disconnect
    • AC input reactor 3% or 5%
    • Soft start bypass
    • LonWorks communications
    • Ethernet communications
    • Additional I/O
    • N-12 ventilated enclosure
    • N-3R enclosure
  • Downloads
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