substitution request - Alliance Construction Solutions

Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
submitted by the VFD manufacturer with the submittal package, which
includes all harmonics up to the 50th. Analysis shall include computergenerated
waveforms, a statement of all assumptions, a one-line diagram
of the system as analyzed, and a spectrum analysis showing individual
harmonics along with a statement showing compliance with the
standards.
4. Manufacturer shall guarantee that harmonic voltage and current distortion on the
line side (input terminals) of the VFD does not exceed 5% total voltage harmonic
distortion and 15% total current harmonic distortion.
5. Comply with FCC Subpart J of Part 15 for Class A computing devices from 7 MHz
to 30 MHz for conduction limit without external modification.
6. Output Power: Three-phase, 1.5 to 60 Hz, with variable voltage to provide proper
and efficient operation of variable torque load, and capable of providing up to
110% startup torque.
7. Overload capacity minimum of 110% for 1 minute.
D. The VFD shall be operable in two modes. In the "HAND" mode, the unit shall start and run
at a speed as set on the manual speed adjuster. In the "AUTO" mode, the unit shall start
in response to a contact closure and run at a speed established by a remote analog
control signal.
E. Minimum Requirements for Control Operation and Service:
1. Door-interlocked disconnect switch (or MCB, 65,000 AIC minimum) for the entire
unit.
2. Isolated 120 VAC control transformer
3. Digital annunciated fault and limit functions for:
a. Thermal overload relay trip.
b. Microprocessor self-check function.
c. Output overcurrent trip.
d. DC bus overvoltage trip.
e. Inverse time overload trip.
f. Heat sink overtemperature trip.
g. DC bus fuse open.
h. DC bus overvoltage (regen. limit).
i. Output ground fault.
j. Output line-to-line fault.
4. Last 8 faults shall be retained in memory for operator recall.
5. Isolated Binary Input Circuits:
a. External safety lockout device.
b. Remote Run/Stop command.
6. Isolated Binary Output Circuits:
a. Remote VFD fault trip alarm.
b. VFD Run/Stop status.
c. VFD Auto/Manual mode status.
7. Analog Output Signals:
23 0513 - 8 MECHANICAL/ELECTRICAL REQ.
FOR MECHANICAL EQUIPMENT