d.
The VFD shall have the ability for control by either a remote 4-20
mA [0 to 10 VDC] control signal or from a local control panel
located on the VFD itself.
e.
The VFD shall use microprocessor technology for VFD control.
The
VFD shall be programmable with a permanently mounted keypad
included with each VFD.
f.
The VFD shall be fully self diagnostic. No external programmers,
analyzers, interrogators, or diagnostic boards, shall be needed to
annunciate VFD faults or drive internal status.
2.8.2
Code Standards
VFD shall be UL listed as delivered to the end user.
The VFD shall meet
current National Electrical Code.
2.8.3
To ensure quality, each and every VFD shall be subject to a series of
in-plant quality controlled inspections before approval for shipment from
the manufacture's facilities.
a.
All components shall be tested prior to assembly and the complete
unit shall be tested under full load conditions to ensure maximum
product reliability.
b.
The VFDs shall be the current standard production unit with at
least 10 identical units already in the field.
c.
Engineering support shall be available from the factory of the
VFD. Phone support shall be free of charge to the end user for the
life of the equipment. Factory support shall be available in the
English language.
2.8.4
VFD Service
The VFD shall be supplied with:
a.
24 month parts and labor warranty. The warranty shall start when
the system is accepted by the end user or 30 months from date of
shipment.
b.
Installation, operation, and troubleshooting guide(s).
c.
A district service support group shall provide the following
(1) Factory trained personal on-site for start-up for up to one
working day at no additional cost. Personnel shall be competent
in operation and repair of the particular model of VFD that is
installed.
(2) On-site training of customer personnel in basic installation,
troubleshooting, and operation of VFDs at no additional cost.
This training shall be conducted for up to [6] personnel at the
installation site for a minimum of 4 hours.
SECTION 15910N
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