1
DO NOT ATTEMPT TO LIFT ORDO NOT ATTEMPT TO LIFT OR
DO NOT ATTEMPT TO LIFT ORDO NOT ATTEMPT TO LIFT OR
DO NOT ATTEMPT TO LIFT OR
SUPPORT THE DRIVE BY THESUPPORT THE DRIVE BY THE
SUPPORT THE DRIVE BY THESUPPORT THE DRIVE BY THE
SUPPORT THE DRIVE BY THE
ENCLOSURE OR THE INTERNALENCLOSURE OR THE INTERNAL
ENCLOSURE OR THE INTERNALENCLOSURE OR THE INTERNAL
ENCLOSURE OR THE INTERNAL
COMPONENTS.COMPONENTS.
COMPONENTS.COMPONENTS.
COMPONENTS.
SECTION 1.SECTION 1.
SECTION 1.SECTION 1.
SECTION 1.
INSTINST
INSTINST
INST
ALLAALLA
ALLAALLA
ALLA
TIONTION
TIONTION
TION
1.11.1
1.11.1
1.1
MOUNTINGMOUNTING
MOUNTINGMOUNTING
MOUNTING
The 1703 Series drives are all designed to be wall
mounted. If they must be floor mounted, a floor stand
can be supplied. Assemble the base struts to the verti-
cal rectangular section struts using the support brack-
ets supplied. The floor stand must be firmly anchored
to the floor or wall for stability. Attach the drive to the
vertical rectangular section struts using the spring
loaded fasteners provided. Leave the enclosure closed
until it is time to wire the drive.
The following minimum clearances are recommended:
ThruThru
ThruThru
Thru
28 thru28 thru
28 thru28 thru
28 thru
100100
100100
100
21 amp21 amp
21 amp21 amp
21 amp
77 amp77 amp
77 amp77 amp
77 amp
ampamp
ampamp
amp
To bottom of enclosure 6" 6" 6"
To right side of enclosure 6" 10" 15"
To left side of enclosure 6" 10" 15"
To top of enclosure 3" 3" 3"
To front of enclosure 19" 19" 19"
To back of enclosure Mounting rails supply
necessary clearance
The current rating of the drive is shown on the name
plate on the inside of the door.
These clearances are for access, air flow and conduit
entry and must be maintained.
All conduit and wiring must enter through the top of
the enclosure.
Do not remove the conduit entry plate during trans-
portation or mounting. See Section 2 for details on
wiring the drive.
1.21.2
1.21.2
1.2
TEMPERATURE ANDTEMPERATURE AND
TEMPERATURE ANDTEMPERATURE AND
TEMPERATURE AND
VENTILATIONVENTILATION
VENTILATIONVENTILATION
VENTILATION
All electronic equipment is susceptible to failure if op-
erated in ambient temperatures outside of its rating.
The operating temperature range for this Graham
drive is -20
o
C to 40
o
C (-4
o
F to 104
o
F). The drive should
not be operated outside these extremes.
GENERALGENERAL
GENERALGENERAL
GENERAL
This operation and maintenance manual provides the
necessary installation, adjustment and maintenance
procedures for the 7.5 through 100 amp Graham Se-
ries 1703 adjustable frequency drives. Since these in-
structions are general, problems may occur which are
beyond the scope of the manual. If further information
is desired, please contact Graham for assistance.
NOTE: As-built schematics and made-to-order equip-
ment operation supersede the instructions in this
manual.
Although every precaution has been taken in the de-
sign of the drive to ensure reliability under extreme
operating conditions, it is possible to damage the
equipment through misuse or misapplication. There-
fore, this instruction manual should be carefully re-
viewed before installing and operating the equipment.
RECEIPT OF SHIPMENTRECEIPT OF SHIPMENT
RECEIPT OF SHIPMENTRECEIPT OF SHIPMENT
RECEIPT OF SHIPMENT
When the drive is received, it should be compared
with the packing slip to be sure that everything is re-
ceived. Any damages or shortages should be reported
immediately to the carrier who transported the drive.
If necessary, contact Graham for assistance, referring
to the order number, equipment description and serial
number.
STORAGESTORAGE
STORAGESTORAGE
STORAGE
For long periods of storage, the drive must be covered
to prevent corrosion and contamination. It must be
stored in a clean, dry location between -40
o
F (-40
o
C)
and 185
o
F (+85
o
C). The relative humidity should not
exceed 95%. The drive should be checked periodically
to ensure that no condensation has formed. After stor-
age, again check that it is dry before applying power.
Some of the electrolytic capacitors used in the drive
are subject to the relaxation of an internal formed ox-
ide film after long periods of storage and may require
reforming prior to applying power. If the drive has
been stored for over 18 months, Graham should be
contacted for a determination as to whether a reform-
ing procedure is necessary.
HANDLINGHANDLING
HANDLINGHANDLING
HANDLING
Care should be taken to prevent damage when moving
the drive. The drive should be lifted using hooks or
clevis pins through the lifting holes in the mounting
rails.
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General