Bell & Gossett 176R0649C Technologic 502 Series Pump Controller - Manual (Page 59)

59
Section 9 Start Up Troubleshooting
Sy
m
pto
m
Po
ssi
bl
e
cau
se
Test
So
lu
tio
n
Mi
ss
ing
input
po
w
er
See
st
ar
tup
gu
ide
for
v
ol
tag
e
chec
ks
.
C
or
rec
t v
ol
ta
ge
at
s
our
ce.
Mi
ss
ing
or
o
pen
fus
es
or
c
irc
ui
t
br
eak
er
tr
ippe
d
See
ope
n
fus
es
and
tr
ip
ped
c
irc
ui
t br
eak
er
in
th
is
s
ec
tion
for
pos
si
bl
e
caus
es
.
R
es
et
c
irc
ui
t br
eak
er
.
If
fus
es
, c
hec
k
for
opens
w
ith
po
w
er
rem
ov
ed
fro
m
panel
.
Loos
e
co
nnec
tions
in
pane
l
Per
for
m
pr
e-
st
ar
tup
chec
k
for
loos
e
conn
ec
tio
ns
.
Ti
ght
en
loos
e
conn
ec
tio
ns
in
pa
nel
.
Mi
ss
ing
c
us
tom
er
connec
tions
Mi
ss
ing
c
us
tom
er
c
onnec
tions
c
an
caus
e
the
s
af
et
y
ci
rc
ui
t or
st
ar
t s
igna
l t
o
be
op
en.
See
cus
tom
er
c
onnec
tions
and
m
ak
e
sur
e
al
l a
pp
lic
ab
le
connec
tions
ar
e
m
ade
or
jum
per
s
ins
tal
led
es
pec
ial
ly
cus
tom
er
int
er
loc
k.
Loos
e
cus
tom
er
connec
tions
C
hec
k
al
l c
us
tom
er
c
onnec
tions
for
ti
ght
nes
s.
Lo
os
e
cus
tom
er
c
onnec
tions
c
an
ac
t l
ik
e
an
ope
n
ci
rc
ui
t.
Ti
ght
en
loos
e
cus
tom
er
c
onnec
tions
.
C
us
tom
er
w
ires
inc
or
rec
tly
ter
m
inat
ed
See
cus
tom
er
c
onnec
tion
d
raw
in
g
an
d
m
ak
e
sur
e
w
ire
s
ar
e
connec
te
d
to
cor
rec
t t
er
m
inal
s.
C
or
rec
t an
y
w
ro
ng
con
nec
tions
.
Thi
s
coul
d
pot
en
tia
lly
cas
e
dam
age
to
pan
el
.
Im
pr
oper
v
ol
tage
ap
plie
d
See
pr
e-
sta
rtu
p c
he
ck
li
st.
C
or
rec
t v
ol
ta
ge
m
is
m
at
ch.
T
hi
s
coul
d
pot
ent
ial
ly
dam
age
pane
l c
au
tio
n
on
appl
yi
ng
po
w
er
rec
om
m
ended.
Po
w
er
c
onnec
tions
connec
te
d
w
ron
g
See
pre
-s
tar
tup
c
hec
k
lis
t t
o
see
if
m
ot
or
and
po
w
er
le
ads
w
er
e
sw
ap
ped
.
C
or
rec
t an
y
w
ro
ng
con
nec
tions
.
Thi
s
coul
d
pot
en
tia
lly
cas
e
dam
age
to
pan
el
.
Po
w
er
di
sc
on
nec
t
open
Ver
ify
that
di
sc
on
nec
t or
c
irc
ui
t br
eak
er
is
c
los
ed.
C
or
rec
t an
y
w
ro
ng
con
nec
tions
.
Th
is
c
oul
d
pot
en
tia
lly
cas
e
dam
age
to
pan
el
.
O
per
at
or
s
w
itc
hes
of
f
Ver
ify
that
oper
at
or
d
ev
ic
es
ar
e
in
op
er
at
ing
pos
iti
on
per
st
ar
tup
pr
oc
edur
es
.
Se
t s
w
itc
he
s to
c
or
re
ct p
os
iti
on
.
N
o
func
tio
n
O
L
tri
pp
ed
A
tri
ppe
d
O
L
w
ill
di
sab
le
th
e
m
ot
or
fr
om
runni
ng.
V
er
ify
th
at
O
L
rel
ay
is
in
nor
m
al
oper
at
ing
pos
iti
on
per
m
anual
.
Per
for
m
pr
e-
st
ar
tup
chec
k
lis
t an
d
set
O
L
per
ins
truc
tio
ns
.
Im
pr
oper
v
ol
tage
ap
plie
d
See
pr
e-
st
ar
tup
c
hec
k
lis
t a
nd
cor
rec
t i
f w
ron
g.
C
or
rec
t v
ol
ta
ge
m
is
m
at
ch.
T
hi
s
coul
d
pot
ent
ial
ly
dam
age
pane
l c
au
tio
n
on
appl
yi
ng
po
w
er
rec
om
m
ended.
Po
w
er
c
onnec
tions
connec
te
d
w
ron
g
Mot
or
and
line
vo
lta
ge
sw
apped
.
M
ak
e
sur
e
the
lin
e
in
an
d
m
ot
or
out
ar
e
on
th
e
cor
rec
t t
er
m
inal
s.
S
ee
pr
e-
st
ar
tu
p
chec
k
lis
t.
C
or
rec
t an
y
w
ro
ng
con
nec
tions
.
Thi
s
coul
d
pot
en
tia
lly
cas
e
dam
age
to
pan
el
.
Po
w
er
gr
ou
nd
faul
t
C
hec
k
m
ot
or
and
pa
ne
l p
ow
er
w
ires
to
gr
ound.
El
im
inat
e
an
y
gr
ou
nd
faul
ts
det
ec
ted.
Phas
e
to
phas
e
shor
t
Mot
or
or
pan
el
has
a
s
hor
t phas
e
to
phas
e.
C
hec
k
m
ot
or
and
pane
l p
has
e
to
phas
e
for
s
hor
ts
.
El
im
inat
e
an
y
sh
or
ts
det
ec
ted.
Mot
or
ov
er
lo
ad
Mot
or
is
o
ver
load
ed
for
the
app
lic
at
ion
.
Per
for
m
s
tar
tup
an
d
ver
ify
m
ot
or
c
ur
rent
is
w
ith
in
spec
ifi
cat
io
ns
.
If
m
ot
or
c
ur
rent
is
ex
ceed
ing
nam
epl
at
e
FLA
red
uc
e
th
e
loa
d
on
the
m
ot
or.
D
riv
e
ov
er
load
D
riv
e
is
o
ver
loa
ded
for
the
app
lic
at
ion
.
Per
for
m
s
tar
tup
an
d
ver
ify
dr
iv
e
cur
rent
is
w
ithi
n
spec
ifi
cat
io
ns
.
If
not
re
duc
e
the
lo
ad
on
the
m
ot
or
.
O
pen
po
w
er
fus
es
or
cir
cu
it
br
eak
er
tr
ip
Loos
e
co
nnec
tions
Per
for
m
pr
e-
st
ar
tup
chec
k
for
loos
e
conn
ec
tio
ns
.
Ti
ght
en
loos
e
conn
ect
io
ns.
Table 9-1. Fault T
able