1-1
The GPD 315/V7 (NEMA1) and GPD 315/V7-4x (NEMA 4x/12), hereafter referred to as the "Drive,"
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 most conventional
squirrel cage induction motors. Automatic stall prevention and voltage boost prevents nuisance
tripping during load or line side transient conditions. The Drive will not induce any voltage line
notching distortion back to the utility line and maintains a displacement power factor of not less than
0.98 throughout its speed range.
When properly installed, operated and maintained, the Drive 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.
Information in this manual covers both the NEMA 1 and NEMA 4x/12 configuration of the Drive. It
also contains basic information for the operator control station. For detailed operation of other units
in the drive system, refer to their respective manuals.
The Drive is thoroughly tested at the factory. After unpacking, verify the part numbers on the
nameplate 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.
Do not install a drive that is damaged or missing parts.
If the drive will be stored after receiving, keep it in its original packaging and store according to
storage temperature specifications in Appendix 2.
Location of the Drive is important to achieve proper performance and normal operating life. The unit
should be installed in an area where it will be protected from:
• Extreme cold and heat. Use only within the ambient temperature range (for open chassis
type): 14 to 122°F (-10 to +50°C)
• Rain, moisture
• Oil sprays, splashes
• Salt spray
• Direct sunlight. (Avoid using outdoors)
• Corrosive gases (e.g. sulfurized gas) or liquids
• Dust or metallic particles in the air
• Physical shock, vibration
• Magnetic noise (Example: welding machines, power devices, etc.)
• High humidity
• Radioactive substances
• Combustibles: thinner, solvents, etc.
When preparing to mount the Drive, lift it by its base, never by the front cover. For effective cooling,
as well as proper maintenance, the Drive must be installed on a flat, non-flammable vertical surface
(wall or panel) using four mounting screws. There MUST be a MINIMUM 3.9 in. clearance above
and below the Drive to allow air flow over the heat sink fins. A minimum 1.2 in. clearance is required
on each side of the Drive.
Section 1. RECEIVING AND INSTALLATION
1.1 GENERAL
1.2 RECEIVING
1.3 PHYSICAL INSTALLATION
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