MSD
TM
Series
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11
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Installation Procedures Continued
Variable Frequency Drive (VFD) Requirements
A VFD must be used to optimize the system to
the best efficiency point (BEP) of the RO system.
The VFD must be configured to match the motor
nameplate information. The VFD does not come
pre-programed. Please contact the equipment
supplier if the VFD programming manual is not
available. Important note for CE compliant coun
-
tries: the VFD must have a line filter which must
be installed in the same metallic enclosure as the
drive.
AC SINE WAVE
POWER
VFD
VARIABLE
FREQUENCY
POWER
OPERATOR
CONTROLS
6.13752
GIANT
®
INDUSTRIAL
MOTOR
CAT. NO.
SPEC.
HP
VOLTS
AMPS
R.P.M.
FRAME
SER. F.
NEMA NOM. EFF.
RATING
CC
BEARINGS
ENCL.
MFG. BY BALFOR
ELECTRIC CO. U.S.A
NP1256L
VM3559
35A13T123
3
208-230/460
8.1-7.6/3.8
3450
56C
HZ 60
PH 3
1.15 CODE K DES B CLASS F
82.5
% P.F. 89
%
40C AMB-CONT
USABLE AT 208V 8.1
A
DE 6205
ODE 6203
TEFC
SN
FO603113416
Motor Requirements
ELECTRICAL HAZARD
Wiring of the motor shall be completed
in conformance with all local electrical
codes. All EU countries must follow EN
60204-1. If a variable frequency drive
(VFD) is provided with the motor, it is
recommended that shielded cables are
used between the VFD and the motor.
The shield must be connected at both
ends.
3-PHASE
MOTOR
PIGTAILS
GROUNDING
LUG
Figure 6 -
Typical Motor Nameplate
Figure 7 -
Typical Motor Electrical
Connections
Motor and Pump Installation Requirements
A rigid mounting surface is required for pump-
motor assemblies in order to prolong the life of
critical components. Mounting surfaces con-
structed of wood or other non-rigid materials are
NOT acceptable as they may deflect during pump
operation and cause shaft misalignment. All
anchoring fasteners used should meet or exceed
manufacturers specifications. All assemblies must
be mounted on one of three types of substrates:
•
concrete foundation.
•
optional baseplate.
•
container with a suitable steel substructure.
Figure 8 -
Basic VFD Configuration