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3.1
GENERAL
SECTION III
INSTALLATION
There are different types of drawings/diagrams created for specific
purposes.
The type of drawing/diagram is noted in the title block of
each diagram sheet.
The three major types of diagrams are elementary (sometimes referred to
as schematic), connection and interconnection.
a.
The Elementary Diagram represents (in symbolic form) the fundamental
operation and.relationship of the electrical parts of a system.
These diagrams are drawn in such a manner that the operation of the
control is easily understood.
Mechanical relationships of control
devices are subordinated to the most simple presentation of the
electrical circuits.
b.
The Connection Diagram is one which shows the relative physical
position of the devices on the control
panel~s
well as other
electrical components located within the same enclosure.
Actual
wire connections made between control devices and power devices
within the enclosure, as well as outgoing terminal points, are
shown on this type diagram.
c.
The Interconnection Diagram indicates the type and number of con-
nections to be made between major components of the system (power
unit, motor and sensing device), the
power'~ource,
and auxiliary
devices.
3.2 EQUIPMENT LOCATION
Speed Variator power units are suitable for most building areas where
other equipment is installed.
Locations subject to steam vapors or
excess moisture, oil vapors or chemical fumes should be avoided.
Power
units should be installed in a well-ventilated area not subjected to
excessive heat (above 1040F).
WARNING
EQUIPMENT SHOULD NEVER BE
INSTALLED WHERE HAZARDOUS,
INFLAMMABLE OR COMBUSTIBLE
VAPORS OR .DUSTS ARE PRESENT.
DRIVE POWER UNITS SHOULD BE
INSTALLED
A~AY
FROM HAZARD-
OUS AREAS, EVEN IF USED WITH
AC MOTORS SUITABLE FOR USE
IN SUCH LOCATIONS.
When installing units provide f)r sufficient clearance in front of doors
to allow access to unit.
3-1
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