Basic Documentation

Page 6 of 9 Siemens Building Technologies, Inc.
Document No. A6V10431169
18. All VFDs shall include EMI/RFI filters. The filters shall allow the VFD assembly to be CE marked and meet product
standard EN 61800-3 for the First Environment restricted level (Category C2).
19. The VFD shall have an optional integrated disconnect switch which will not add any additional enclosures to the
drive and be the same footprint as a drive without an integral disconnect switch.
20. The VFD shall have the following protection circuits. The drive shall announce in full text the fault condition on the
keypad display and shall display a HELP function which explains the possible cause of the fault and the possible
remedy. The following protection circuits are:
• Over current
• Overvoltage
• Undervoltage
• Unit over-temperature protection
• Ground fault protection
• Mains supervision
• Motor phase supervision
• Motor stall protection
• Motor overload protection
• Motor underload protection
• Short-circuit protection of +24V
Speed Command Input shall be accomplished using any of the following:
• Keypad
• Two Analog inputs, each capable of accepting a 0-20mA, 4-20mA, 0-10V, 2-10V signal, and direct NI 1000
temperature sensor input.
• Serial Communications
Communications
The VFD shall have an RS-485 and Ethernet as standard. The standard embedded protocols shall be BACnet MS/TP, BACnet
IP, Modbus RTU, Modbus TCP, Siemens APOGEE P1 (FLN) protocol and Johnson Controls Inc. N2 Metasys protocol. There
shall be an optional LON (LONMARK) interface.
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