Basic Documentation

Siemens Industry, Inc. Page 3 of 9
Document No. A6V10431169
1.04 Delivery, Storage and Handling
A. Deliver, store, protect and handle products to site, under provisions of Section 01610.
B. Accept VFD on site in original factory packing. Inspect for damage.
C. Store in a clean, dry space. Maintain factory wrapping or an additional cover to protect units
from dirt, water, construction debris and traffic.
D. Handle in accordance with manufacturer’s written instructions to avoid damage to
components, enclosure and finish.
Part 2 – PRODUCTS
2.01 Variable Frequency Drives
A. The Variable Frequency Drives (VFDs) shall be solid state, with 6-pulse width modulated (PWM)
output.
B. The VFD package as specified herein shall be enclosed in a Type 1/Type 12 enclosure, completely
assembled and tested by the manufacturer.
C. The VFD shall employ a full wave rectifier (to prevent input line notching), capacitors, and Insulated
Gate Bipolar Transistors (IGBTs) as the output-switching device.
D. The drive efficiency shall be greater than 97.5% or better at full speed and full load.
E. Displacement power factor shall be no less than 0.98 at all speeds and loads.
F. All VFDs provided shall have the following:
1. Input voltage 208-240V, 380-500V nominal voltage.
2. VFDs shall be capable of continuous full load operation under the following conditions:
a. Voltage tolerance + or – 10% of specified line voltage.
Output Frequency 0 to 90 Hz.
b. Environmental operating conditions: 32°F to 104°F (0°C to 40°C), 0 to 3280 feet (1000 meters)
above sea level.
c. Relative humidity of 0 to 95%, non-condensing.
d. Storage temperature -4°F to 158°F (-20°C to 70°C).
e. Ambient operating temperature 14°F to 104°F (-10°C to 40°C).
f. Overload Capability: 1.1 time nominal rated output current 110% for 1 minute/10
minutes.
g. The VFD shall include EMI/RFI filters. The entire assembly shall be CE marked and meet
EMC Immunity IEC 61800-3 (2004) First and Second environment and EMC Emissions to
meet EN61800-3 (2004) Category C2.
h. Enclosure shall be rated UL Type enclosures, or as specifically mentioned elsewhere.