GE Fuji Electric AF-300ES Instructions Manual page 6

CAUTION:
For RUN and STOP, use the FWD-CM (forward) and REV-
CM (reverse) terminals. Do not use a contactor (ON/OFF)
installed on the line side of the drive for RUN and STOP.
CAUTION:
Do not use a switch on the output side of the drive for ON/
OFF operation.
CAUTION: Do not connect filter capacitors on the output
side of the drive.
CAUTION:
Do not operate the drive without the ground wire con-
nected. The motor chassis should be grounded to earth
through a ground lead separate from all other equipment
ground leads to prevent noise coupling.
The grounding connector shall be sized in accordance with
the NEC or Canadian Electrical Code. The connection shall
be made by a UL listed or CSA certified closed-loop
terminal connector sized for the wire gauge involved. The
connector is to be fixed using the crimp tool specified by
the connector manufacturer.
CAUTION:
Do not perform a megger test between the drive terminals
or on the control circuit terminals.
CAUTION:
The AF-300E$ drive develops an adjustable frequency via
pulse width modulation, with the pulse rise time of 0.1
microseconds. While this does not present a problem on
200-230Vac applications, it may on 380-460Vac applica-
tions. When using the AF-300E$ drives on 380-460Vac,
where the distance between the motor and the drive
exceeds 60 feet, get the motor manufacturer's approval
that his insulation system can withstand the voltage spikes
(up to twice the dc bus voltage 2 x 621Vdc for a 460Vac
power source) of the drive, in conjunction with the long
motor cable lengths. If the insulation system does not meet
this limit, utilize a filter to increase the Drive's pulse rise time
to 1.0 microseconds.
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CAUTION:
Because the ambient temperature greatly affects drive life
and reliability, do not install the drive in any location that
exceeds the allowable temperature. Leave the ventilation
cover attached for temperatures of 40 degrees C or below,
and remove the cover for temperatures of between 40
(104° F) and 50 (122° F) degrees C (30 Hp and lower).
If the cover needs to be removed, another type of
enclosure may be required for safety purposes.
CAUTION:
If the Drive's Fault Alarm is activated, consult the
TROUBLESHOOTING section of this instruction book, and
after correcting the problem, resume operation. Do not
reset the alarm automatically by external sequence, etc.
CAUTION:
Be sure to remove the desicant dryer packet(s) when
unpacking the drive. (If not removed these packets may
become lodged in the fan or air passages and cause the
drive to overheat.)
CAUTION:
AC induction motors require that they be sized based on
the applications speed range and associated torque
requirements for the motor-drive system. This is to avoid
excessive motor heating. Observe motor manufacturers
recommendations when operating any ac induction motor
with the drive. Also observe motor manufacturer's
recommended voltage/torque boost at lower operating
frequencies.
CAUTION:
The available power source connected to the drive is not to
exceed 500KVA. If the ac power source is greater than
500KVA and the driver's rating (Hp) is less than 10% of the
power source's KVA; ac line reactors will have to be
installed in L1, L2 & L3 power leads of the drive.
CAUTION:
The drive must be mounted on a wall that is constructed of
heat resistant material. While the drive is operating, the
temperature of the drive's cooling fins can rise to a
temperature of 90°C (194°F.)
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