Sigmatek FDD Sizes 7 to 9 Power Installation Guide
57
S
P
M
El
Te
UL
list
ing
in
Figure 4-6 Preferred chain connection for multiple motors
Figure 4-7 Alternative connection for multiple motors
4.6.5 /
motor operation
The voltage rating for and
connections of the motor should always be checked before
attempting to run the motor.
The default setting of the motor rated voltage parameter is the same as the drive rated voltage, i.e.
400 V drive 400 V rated voltage
230 V drive 230 V rated voltage
A typical 3 phase motor would be connected in for 400 V operation or
for 230 V operation,
however, variations on this are common e.g.
690 V
400 V.
Incorrect connection of the windings will cause severe under or over fluxing of the motor, leading to a
very poor output torque or motor saturation and overheating respectively.
Motor protection
re
l
ay
Chai
n connec
ti
on
(p
re
f
erre
d)
9E
/
10E
Sta
r connec
ti
on
I
n
d
uc
t
or
Motor
protection
re
l
ay
9E
/
10E
Содержание 074.00660
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