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Electronic Bypass Controller Installation and Commissioning Guide
Section 7 - Additional Information
7.1 Specifications – Electronic Bypass
The electronic bypass package features a user friendly application-specific keypad to
simplify operation and provide status indication.
Approvals:
•
VFD Section – UL508C
•
Bypass Section – UL508A
Design:
• 3 contactor bypass
• NEMA 1 enclosure
• Electronic bypass keypad / annunciator panel
• 32-bit microprocessor
• MODBUS, (BACnet, Metasys N2 standard with H300 only)
• HAND/OFF/AUTO pushbuttons
• TEST/VFD/BYPASS pushbuttons
• Auto transfer to bypass on fault (selectable)
• Damper Mode (programmable)
• Damper actuator control (5 A @ 125 Vac relay contact)
•
Smoke / fire alarm – programmable to:
• Purge Mode
• Zero Speed Mode
• Four (4) relay outputs
• Dry contact digital inputs
• Narrow footprint
• PID controller
• Class 10 motor overload relay
• One (1) analog output:
• 0-10 Vdc, scalable
•
Two (2) analog inputs – programmable for:
• 0-10 Vdc, scalable
• 4-20 mA, scalable (default auto speed input)
• Speed search function
• Digital manual speed control