IM 1287-4 • REBEL APPLIED ROOFTOP 106 www.DaikinApplied.com
Unit Maintenance
Step Controller Troubleshooting
Figure 156: Step Controller Troubleshooting Instructions
FUNCTIONAL TEST DESCRIPTION:
The
func�o
nal test m
ode
can be use
d
t
o
verify
board
op
era
�on,
stage se
�
ngs an
d
in
put
signal. This m
ode
will by
p
ass
bo
th the
inter-stage
de
lay
se�ngs
an
d
inp
ut signal in
o
r
d
er t
o
sequence the stages
acco
r
d
ing t
o
the current status
of
the STAGE
se�ngs.
The
test sequence will al
so
validate
the
input
signal.
The
bo
ar
d
is c
onfi
gure
d
for
the
func�onal
test m
ode
by se
�ng
switch 5 t
o
‘TEST’. When the
boa
r
d
is
powered
on
in the
func�onal
test
mod
e
,
the
following
sequence
of
events will take
pla
ce:
1. The
following
LEDs will illuminate
o
n
po
wer u
p
an
d
remain
on
duri
ng the cycling u
p
an
d
down
of
the stages:
LED
Master Unit
Slave Unit
De
scrip�on
Number
Color
Power
LED 1
Re
d
On
On
Err
or
LED 2
Ye
llo
w
On
O
ff
Run
LED 3
Green
On
On
Fault
LED 4
Ye
llo
w
On
O
ff
DC
Power
LED 10
Re
d
On
On
Vernier
LED 11
Green
On
O
ff
Slave
LED 12
Green
On
On
2. The stage LED lights will cycle
on
an
d
then
off
in a linear fash
ion
(first
on,
last
off)
accord
ing the number
of
stages currently
set. B
o
th the inter-stage
de
lay
se�ngs
an
d
inp
ut signal are by
pass
e
d
du
ring this test.
3.
A�e
r the stage cycling is
co
m
p
lete
,
the c
on
tr
oll
er will
perform
a test t
o
verify the
input
signal. All lights exce
pt
the DC
Power
(LED 10
)
will turn
off
an
d
o
ne
of
the
following
lights will blink t
o
c
o
nclu
d
e the func
�o
nal test:
LED
De
scrip�on
of
inpu
t test result if LED is
illuminated
De
scrip�on
Number
Color
Power
LED 1
Re
d
Reversed
pola
rity (mA
or
VDC
)
Err
or
LED 2
Ye
llo
w
N
o
input
signal
d
etecte
d
or
signal
d
etecte
d
is
ou
t
of
range *
Run
LED 3
Green
N
o
issues. Vali
d
input
signal
d
etecte
d
.
*
Tolerance
of
+10% / -5%
o
n range limit
indica�ons.
4.
A�e
r test is c
o
m
pl
ete
,
pow
er
down
controller
an
d
set switch 5 back t
o
‘C
on
tr
ol
’. The
controller
is rea
d
y t
o
p
ut int
o
service.
If the light sequence
sho
wn is
no
t as
expec
t
ed
base
d
o
n the current setu
p
parameters,
please
verify se
�n
gs an
d
c
o
ntact
fact
o
ry
for
assistance.
CAUTION:
-
Di
sco
nnect all
pow
er
before
changing any
controller
se�ngs.
Содержание Rebel Applied DPSA
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Страница 161: ......