Electrical Installation
|
17
5.0 Electrical Installation
Before assembling, installing, or connecting any components,
follow the safety information in the ETS-Lindgren
Product Information Bulletin included with your shipment.
Electrical installation must be performed by a qualified
electrician, and in accordance with local and national electrical
standards.
Make sure the power is off and secured before proceeding.
The Model 2187 Turntable is configured to operate using 208-230 VAC,
single phase, 50/60 Hz service. It is recommended to operate at this voltage level
to reduce the surge currents necessary to power an electric motor.
1.
The branch circuit supplying power to the motor base should be
protected from excess current according to local electrical codes. An
integral circuit breaker is mounted inside the main bearing on one of the
bearing support blocks. The circuit breaker is specifically designed for
the inductive load presented by the electric motor.
2.
Make sure the conductor size is adequate for the motor load and the
distance from the mains source. Improperly sized conductors will lead to
a high voltage drop in the power conductors and cause reduced starting
torque and premature motor failure.
3.
The motor base assembly is provided with a non-terminated flexible
conduit with input power leads exposed. The flexible conduit is to be
terminated into a junction box fitted on or near the motor base. Terminate
the power leads of the motor base assembly according to local electrical
code requirements. Following is the conductor color code:
Brown:
AC high
Blue:
AC neutral
Green/Yellow:
Protective earth/safety ground
18
|
Electrical Installation
Connect the fiber optic control cable and install the power connection according
to local electrical code. See the controller manual for information on connecting
the fiber optic cable. After the fiber optic cable is installed, secure it with a wire tie
to one of the leveling screws.
To feed the fiber optic connectors through a waveguide in the chamber, cables
are included to connect from the feedthroughs on the penetration panel to the
controller and motor base.
Assembly and Installation
|
19
6.0 Assembly and Installation
Before assembling, installing, or connecting any components,
follow the safety information in the ETS-Lindgren
Product Information Bulletin
included with your shipment.
Prior to assembly and installation, review the drawings located in the back
pocket of this manual.
Proper installation of the turntable directly affects performance. The installation of
turntables two meters and larger will be performed by factory installation
specialists or individuals authorized by ETS-Lindgren to perform such work. The
following installation information is included only to provide an informational
overview of the installation process.
1.
Uncrate all parts and check for shipping damage. Create a clear area to
safely assemble the turntable unit. Do not discard any packing material
until unit is fully assembled.
2.
Remove the bolts that attach the top onto the turntable drive assembly.
Make note of the placement of each top section as it is removed.
Only qualified personnel should use a forklift or other lifting
machinery to lift the turntable assembly.
3.
Using a forklift or other appropriate lifting machinery, place the turntable
bottom or bearing support section into position. If the turntable is to be
installed in a pit, center and level the assembly.
Make sure power is off and secured before proceeding.
4.
The drawings in the
back of this manual show the placement of floor
plates and leveling screws to anchor and level the turntable. Anchor the
turntable through the attachment holes using the concrete expansion
bolts provided. After installing the floor plates and leveling screws, level
the entire turntable by adjusting all the leveling screws between and
under the casters, and in the center section of the turntable.
5.
Tighten all lock nuts accompanying the leveling screws to lock the height
of the turntable into place.
20
|
Assembly and Installation
6.
Connect the fiber optic control cable and install the power connection
according to local electrical code. The standard power configuration is
230 VAC 50/60 Hz.
Keep all body parts away from the drive pinion when the
turntable is energized.
7.
Follow the instructions in the next section,
Floor Flange Installation in a
Paneled Floor
, to install the ground ring assembly.
8.
Reinstall the top section removed in step 2 of these instructions.
Floor Flange Installation in a Paneled Floor
The ground ring assembly includes a floor flange with a mounted brush ring that
interfaces with the contact ring mounted beneath the turntable top. The floor
flange provides constant electrical contact with the ground plane.
Mounting methods vary according to user specifications. Clearance holes are
provided at evenly-spaced intervals along the outside perimeter of the floor
flange to attach to a customer-supplied ground plane. These instructions
describe installation for a paneled floor. For concrete pit mounting instructions,
see
Floor Flange Installation in Concrete Pit
on page 22.
