GSI Group PNEG-369, Руководство пользователя

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8
24' Batch & Autoflow
Power Supply
An adequate power supply and proper wiring are important
factors for maximum performance and long life of the
dryer. Electrical service must be adequate enough to
prevent low voltage damage to motors and control circuits
(see Electrical Load Information on page 40). In 220V 1
ph and 220V 3 ph systems a separate neutral wire is
required for the 120V heater circuit, and should be
connected to terminal #1 in the master heater. Do not
run in conduit with motor power lines.
It is necessary to know the distance from the unit to the
available transformer, and the horsepower of your fan
unit. Advise the service representative of your local
power supplier that an additional load will be placed on
the line. Each fan motor should be wired through a fused
or circuit breaker disconnect switch. Check on KVA
rating of transformers, considering total horsepower load.
The power supply wiring, main switch equipment and
transformers must provide adequate motor starting and
operating voltage. Voltage drop during motor starting
should not exceed 14% of normal voltage, and after motor
is running at full speed it should be within 8% of normal
voltage. Check Electrical Load Information for HP ratings
and maximum amp loads to properly size wire and fusing
elements. Standard electrical safety practices and codes
should be used. (Refer to National Electrical Code Standard
Handbook by National Fire Protection Association).
Transformer and Wiring Voltage Drop
Proper Installation of Ground Rod
It is very important that a Machine To Earth Ground
Rod be installed at the fan. This is true even if there is
a ground at the pole 15 feet away. Place the ground rod
that comes standard, within 8 feet of the dryer and
attach it to the dryer control panel with at least a #6
solid, bare, copper ground wire and the clamp provided.
The grounding rod located at the power pole will not
provide adequate grounding for the dryer. The proper
grounding will provide additional safety in case of any
short and will ensure long life of all circuit boards, and
Machine to Earth Grounding
It is not recommended that the rod be driven into dry
ground.
Follow these instructions for proper installation:
1.Dig a hole large enough to hold 1 to 2 gallons of
water.
2. Fill hole with water.
3. Insert rod through water and jab it into the ground.
4. Continue jabbing the rod up and down. The
water will work its way down the hole, mak-
ing it possible to work the rod completely into
the ground. This method of installing the
rod gives a good conductive bond with the
surrounding soil.
5. Connect the bare, copper ground wire to the
rod with the proper ground rod clamp. See
Figure 12.
6. Connect the bare copper ground wire to the fan
control boxes with a grounding lug.
Dig a hole large
enough to hold 1
or 2 gallons of
water. Work the
ground rod into
the earth until it
is completely in
the ground.
ELECTRICAL POWER SUPPLY
the ignition system. The ground rod must be in
accordance with local requirements.
7. Ground wire
must not have any
breaks or splices.