Leeson SCR Thyristor Motor Control Manual do Utilizador Página 21

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15
Installation
SPEEDMASTER™ OPERATION MANUAL
WIPER
C
W
W
S
PEED AD
JUST
P
O
TENTI
O
METE
R
IN
SU
LATIN
G
DI
SK
PANEL
S
TA
R
WA
S
HE
R
N
UT
MO
UNT THR
O
UGH A 0.38 IN.
(
10 MM
)
H
O
L
E
Figure 8. Speed Adjust Potentiometer
On chassis drives, install the circular insulating disk between
the panel and the 10K ohm speed adjust potentiometer. Mount
the speed adjust potentiometer through a 0.38 in. (10 mm) hole
with the hardware provided (Figure 8). Twist the speed adjust
potentiometer wire to avoid picking up unwanted electrical noise.
If potentiometer leads are longer than 18 in. (457 mm), use
shielded cable.
All cased drives come with the speed adjust potentiometer
installed.
Speed adjust potentiometer
Warning
Be sure that the potentiometer tabs do not make contact
with the potentiometer enclosure. Grounding the input will
cause damage to the drive.
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