Yaskawa GPD503 Drive - Manual (Page 13)

Section 1. INSTALLATION
1.1 GENERAL
The GPD 503 is a high performance sine-coded pulse width modulated AC motor drive
which generates an adjustable voltage/frequency three phase output for complete speed
control of any conventional squirrel cage induction motor. Automatic stall prevention and
voltage boost prevents nuisance tripping during load or line side transient conditions. The
GPD 503 will not induce any voltage line notching distortion back to the utility line and
maintains a displacement power factor of not less than 0.95 throughout its speed range.
When properly installed, operated and maintained, the GPD 503 will provide a lifetime of
service. It is mandatory that the person who operates, inspects, or maintains this
equipment thoroughly read and understand this manual before proceeding.
This manual primarily describes the GPD 503, but contains basic information for the
operator control station as well. For details of the operation of other units in the drive
system, refer to their respective manuals.
1.2 RECEIVING
The GPD 503 is thoroughly tested at the factory. After unpacking, verify the part numbers
with the purchase order (invoice). Any damages or shortages evident when the equipment
is received must be reported immediately to the commercial carrier who transported the
equipment. Assistance, if required, is available from your sales representative.
1.3 PHYSICAL INSTALLATION
Location of the GPD 503 is important to achieve proper performance and normal operating
life. The unit should be installed in an area where it will be protected from:
• Direct sunlight, rain or moisture.
• Corrosive gases or liquids.
• Vibration, airborne dust or metallic particles.
For effective cooling as well as proper maintenance, a wall mount style GPD 503 must be
installed vertically to the ground using four mounting screws. There MUST be a MINIMUM
6 in. clearance above and below the GPD 503. A MINIMUM 2 in. clearance is required on
each side on the GPD 503.
A free-standing style GPD 503 must be installed with enough clearance for opening the
door of the cabinet; this will ensure sufficient air space for cooling.
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