Basic Documentation
Disclaimer: These are sample drawings and sequences. Designers are responsible for
finalizing the content for their particular projects.
Modbus TCP, Johnson Controls N2 and Siemens Industry Inc, Building
Technologies Division P1 (FLN) protocol, Johnson Controls Inc. N2 Metasys
protocol. There shall be an optional LON (LONMARK) interface.
2. Serial communication capabilities shall include, but not be limited to, run-stop
control; speed set adjustment, proportional/integral/derivative PID control (Set
Point) adjustments and accel/decel time adjustments. The drive shall have the
capability of allowing the DDC to monitor feedback such as process variable
feedback, output speed/frequency, current (in amps), % torque, power (kW),
relay outputs, digital inputs and diagnostic warning and fault information.
Additionally, remote (LAN) VFD fault reset shall be possible. A minimum of 15
field parameters shall be capable of being monitored.
J. Quality Assurance
1. Referenced Standards:
a. Institute of Electrical and Electronic Engineers (IEEE)
1) Standard 519-1992, IEEE Guide for Harmonic Content and Control
b. Underwriters laboratories
1) UL508
2) UL508C
c. National Electrical Manufacturer’s Association (NEMA)
1) ICS 7.0 AC Adjustable Speed Drives
d. International Electro technical Commission (IEC)
1) EN/IEC 61800-3
e. National Electric Code (NEC)
1) NEC 430.120, Adjustable-Speed Drive Systems
2. Testing:
a. The VFD shall have undergone extensive testing from design to
deployment. The testing includes highly accelerated stress testing in
extreme temperatures, vibration, and humidity as well as current and
voltage variations. All printed circuit boards shall be completely tested and
burned-in before being assembled into the completed VFD. All testing and
manufacturing procedures shall be ISO 9001 certified. Test reports for
each drive supplied shall be available upon delivery.









