Controlled Products Systems Group SWINGSMART DC 20 - Manual (Page 117)

Smart DC Controller Troubleshooting
Revision E Reference 6-19
AL
ER
T
5
BO
TH L
IM ACTI
VE
Bo
th
li
mi
t sw
itch
es
a
re
o
n
a
t th
e
same ti
me
.
1.
S
tu
ck l
imi
t
sw
it
ch.
2.
Sho
rt
in wi
ri
ng
.
3.
De
b
ris in
li
mit pla
te
ar
ea
.
1.
C
h
eck
li
mi
t
sw
it
ch
es
a
n
d
r
epla
ce a
s r
eq
u
ir
ed
.
2.
Ch
eck
limi
t s
w
itch
w
irin
g, co
rr
ec
t
as
req
u
ir
ed
.
3.
R
em
ove de
br
is
f
ro
m
lim
it
ar
ea.
AL
ER
T
6
LI
M NO
T RE
LE
A
SE
D
T
h
e l
imit did no
t
re
le
as
e w
h
en th
e
op
erato
r w
as
co
mman
d
ed to
mo
ve
.
1.
T
aper c
lamp l
oo
se.
2.
B
ro
ken
d
ri
ve
bel
t.
3.
St
u
ck
L
im
it
Sw
it
ch
.
4.
B
ro
ken
L
imi
t
P
la
te.
5.
De
b
ris in
li
mit pla
te
ar
ea
.
1.
T
ig
h
te
n T
ap
er
Clam
p.
2.
Ch
ec
k and r
epl
ac
e drive
b
el
t.
3.
C
h
eck
li
mi
t
sw
it
ch
es
a
n
d
r
epla
ce a
s r
eq
u
ir
ed
.
4.
Che
ck Limi
t
Pla
te
an
d r
epl
ace
a
s r
eq
u
ir
ed
.
5.
R
em
ove de
br
is
f
ro
m
lim
it
ar
ea.
AL
ER
T
7
FR
E
Q
SH
IFT
F
A
U
LT
T
h
e HY
-5A
ha
s d
etected
a
fr
eq
u
en
cy
ch
an
ge
out
si
d
e
th
e no
rm
al r
an
ge
.
Li
ke
ly
ca
use
s ar
e p
oor
inte
gr
it
y o
f lo
ops o
r me
tal
lic ob
je
cts
wi
thin
r
ange
. T
h
is
me
ss
age
wil
l al
so in
dicate
wh
ich
dete
cto
r th
e a
lert
appl
ies to
: Exit
L
oo
p
(EL
D
),
In
si
de
Ob
st
ru
ct
io
n L
oop
(
IO
L
D
), Ou
ts
id
e Obst
ru
ct
io
n Lo
op
(O
OL
D)
, or
C
en
ter
L
oop
(
C
L
D
).
Th
e l
oop l
ead
i
n
wir
es an
d
ro
ad
way
sh
oul
d
be
ch
ec
ke
d
f
or
p
ro
bl
ems
o
r re
p
la
ced
.
AL
ER
T
8
LOO
P
SH
OR
TE
D
Th
e
HY
-5
A
ha
s d
et
ec
ted
a
lo
op
sh
or
ted to
g
ro
u
n
d
.
Cau
se
d
by
ina
d
eq
uate
ins
u
la
tion
o
f l
oop w
ir
es.
Th
e l
oop l
ead
i
n
wir
es an
d
ro
ad
way
sh
oul
d
be
ch
ec
ke
d
f
or
p
ro
bl
ems
o
r re
p
la
ced
.
AL
ER
T
9
L
O
OP
O
P
EN
Th
e
HY
-5
A
ha
s d
et
ec
ted
a
la
ck
of
co
nti
n
uity
in
th
e l
oo
p
w
ir
e.
C
au
sed
b
y b
ro
ken
lo
op
w
ir
e or
wi
re
ha
s co
me u
n
plu
gg
ed
fr
om
de
te
ct
or
.
Th
e l
oop an
d
le
ad in wi
re
s
sh
ou
ld
b
e ch
ec
ke
d
fo
r
p
rob
le
m
s or
r
ep
lac
ed
.
AL
ER
T
1
0
12
C
B
U
S E
R
R
O
R
Th
e S
m
ar
t
D
C
Cont
ro
lle
r
h
as
de
tected a
c
ommu
n
ica
ti
on
e
rro
r
w
ith
a HY
-5
A
veh
icl
e
d
etecto
r.
C
aus
ed
b
y r
em
ov
al
of
H
Y
-5
A o
r l
ac
k
of
i
n
te
gr
it
y
of
t
h
e
so
cke
t con
n
ec
tion
. Th
is me
ssag
e
w
ill
als
o indi
cate
w
h
ic
h
dete
cto
r th
e a
lert
appl
ies to
: Exit
L
oo
p
(EL
D
),
In
si
de
Ob
st
ru
ct
io
n L
oop
(
IO
L
D
), Ou
ts
id
e Obst
ru
ct
io
n Lo
op
(O
OL
D)
, or
C
en
ter
L
oop
(
C
L
D
).
R
emo
ve
an
d r
e-i
nstal
l th
e H
Y
-5
A and pr
ess
RE
SE
T
. R
ep
la
ce t
h
e HY
-5
A
, i
f ne
ce
ss
ar
y.
AL
ER
T
1
1
DE
T
E
C
T
OR F
A
U
LT
Th
e S
m
ar
t
D
C
Cont
ro
lle
r
h
as
de
te
cte
d
a
pr
ob
le
m with
in an
H
Y-5
A
ve
h
icl
e dete
cto
r.
Cau
se
d
by
a f
au
lt
with
in
the
HY
-5A
. Th
is
me
ss
age
w
ill
al
so
in
dicate w
h
ich
dete
cto
r th
e a
lert
appl
ies to
: Exit
L
oo
p
(EL
D
),
I
n
si
d
e O
bs
tr
u
cti
on
L
oo
p
(I
OL
D
), O
u
ts
id
e
O
b
structi
on L
oo
p
(O
O
L
D
),
or
Center L
oo
p
(CL
D
).
R
emo
ve
an
d r
e-i
nstal
l th
e H
Y
-5
A and pr
ess
RE
SE
T
. R
ep
la
ce t
h
e HY
-5
A
, i
f ne
ce
ss
ar
y.
AL
ER
T
1
2
ON
T
O
O
L
O
NG
Th
e S
m
ar
t
D
C
Contr
ol
le
r
h
as an
active
lo
op
i
n
put (HY
-5
A
o
r b
ox
de
tecto
r o
u
tput) f
or
mo
re
th
an 5
min
u
tes.
C
aus
ed
wh
en
the
S
m
ar
t
DC
C
on
tro
ller
se
es
a
n
a
cti
ve
lo
op
fo
r mor
e
th
an
5
m
inute
s.
Th
e “
active
” loo
p
can be
actual
or
fa
ls
e.
Th
is m
essag
e wi
ll
al
so
i
n
dic
at
e wh
ic
h
d
et
ec
tor
t
h
e
al
er
t
appl
ies to
: E
xi
t
L
oo
p (EL
D
),
I
n
side O
bstr
u
ctio
n L
oo
p
(IO
L
D
),
Outs
ide
O
bstr
u
ctio
n Loo
p
(OO
L
D),
or
Ce
nte
r
Lo
op
(
C
LD
).
Ch
eck traff
ic
pa
tte
rns
a
t
th
e si
te
. T
h
e l
oo
p
an
d
le
ad i
n
w
ir
es sh
oul
d
b
e ch
ec
ke
d
fo
r pr
ob
le
ms
or
rep
la
ce
d
.
T
a
ble 6-1.
Smart
DC C
o
n
trol
le
r - T
roubl
eshoot
ing
Disp
la
y
D
escript
io
n
Po
ss
ible
Ca
us
es
So
lut
io
n
s
Con
d
it
io
n
Alert,
E
rr
o
r o
r Fault