User Manual ECS-974neo Temperature Controller
1. Product overview
Mounting size: 71 x 29 mm Product size: 78.5 x 34.5 x 74 mm
1)Temperature measuring range: -50
℃
~99
℃
(Only when sensor calibration value is set to 0)
2)Resolution: 0.1
℃
/1
℃
settable
3)Accuracy: ±1
℃
(-40
℃
~50
℃
), ±2
℃
(others)
4)Temperature control range: -50
℃
~99
℃
5)Power supply: 220 VAC±10 %, 50/60Hz; Overall power consumption: <3W
6)Input port: Cabinet sensor, Evaporator sensor
7)Output port: Cooling/Defrost/Fan
8)Protection grade of front panel: IP65
9)Operating ambient temperature:0
℃
~55
℃
10)Storage temperature:-25
℃
~75
℃
11)Storage humidity: 20%~85% (non-condensing)
5.Parameter table
2.Display and operation panel
3. Technical parameters
4. LED
set
LED
Setting
Cooling
Defrost
Fan
Drip
Status
ON
ON
OFF
Flash
ON
OFF
ON
OFF
ON
OFF
Meaning
Set administrator menu
Cooling starts.
Cooling stops.
Cooling delays.
Defrost starts.
Defrost stops.
Fan starts.
Fan stops.
Dripping.
Drip stops.
Symbol
drip
No.
Menu
Item
Descrip
ti
on
Se
tti
ng range Default Unit
U
ser me
nu
0
SEt
Temperat
u
re set-p
o
i
n
t
L
SE
~
HSE
4.0
℃
℃
Admi
n
istrat
o
r me
nu
1
PA1 Admi
n
istrat
o
r me
nu
passw
o
rd
00
~
250
-
/
2
diF
Differe
n
tia
l
0.1
℃
~
30.0
℃
2.0
℃
3
HSE Higher SEt.
M
ax p
o
ssib
l
e set-p
o
i
n
t
SEt
~
99.0
90.0
℃
4
L
SE
Lo
wer SEt.
M
i
n
p
o
ssib
l
e set-p
o
i
n
t
-50.0
~
SEt
-50.0
℃
No.
Menu
Item
Descrip
ti
on
Se
tti
ng range Default Unit
5
On
t
On
t:
On
time
(
c
o
mpress
o
r). C
o
mpress
o
r activati
on
time i
n
the eve
n
t
o
f fa
ul
t
y
pr
o
be.
O
Ft:
O
FF time
(
c
o
mpress
o
r). C
o
mpress
o
r st
o
p time i
n
the eve
n
t
o
f a fa
ul
t
y
pr
o
be.
If
On
t
=
0, the c
o
mpress
o
r is
o
ff.
If
On
t≠0 a
n
d
O
Ft
=
0, the c
o
mpress
o
r is a
l
wa
y
s
on
.
If
On
t≠0 a
n
d
O
Ft≠0, the c
o
mpress
o
r f
un
cti
on
s i
n
d
u
t
y
c
y
c
l
e m
o
de per
On
t
/O
Ft.
0
~
250
0
mi
n
6
O
Ft
0
~
250
1
mi
n
7
d
O
F
De
l
a
y
(
after p
o
wer)
O
FF. De
l
a
y
after switch
o
ff; the i
n
dicated time m
u
st e
l
apse
betwee
n
switch-
o
ff
o
f the c
o
mpress
o
r re
l
a
y
a
n
d the s
u
ccessive switch-
on
.
0
~
250
0
mi
n
8
O
d
O
De
l
a
y
Ou
tp
u
t
(
fr
o
m p
o
wer)
On
. De
l
a
y
time i
n
activati
n
g the
ou
tp
u
ts after switch-
on
o
f the c
on
tr
oll
er
o
r after a p
o
wer fai
lu
re.
0
~
250
0
mi
n
9
dt
y
Defr
o
st t
y
pe:0
=
e
l
ectric defr
o
st;
1
=
reverse c
y
c
l
e defr
o
st
(
h
o
t gas);
2
=
Free defr
o
st
(
c
o
mpress
o
r h
o
t).
0
~
2
0
/
10
dit
Defr
o
st i
n
terva
l
time. I
n
terva
l
betwee
n
the start
o
f tw
o
s
u
ccessive defr
o
st
o
perati
on
s.
1
~
250
6
h
ou
r
11
dCt
Defr
o
st C
oun
ti
n
g t
y
pe. Se
l
ecti
on
o
f c
oun
t m
o
de f
o
r the defr
o
st i
n
terva
l
.
0
=
c
o
mpress
o
r
o
perati
n
g h
ou
rs;
1
=
fixed time i
n
terva
l
;
2
=
c
o
mpress
o
r st
o
p h
ou
rs.
0
/
1
/
2
1
/
12 d
O
H Defr
o
st
o
ffset h
ou
r. Start-
o
f-defr
o
st de
l
a
y
time fr
o
m start
u
p
o
f c
on
tr
oll
er.
1
~
59
1
mi
n
13
dEt Defr
o
st e
n
d
u
ra
n
ce time. Defr
o
st time-
ou
t; dEt
=
0, defr
o
st is disab
l
ed.
0
~
250
30
mi
n
14 H42 Whether t
o
e
n
ab
l
e evap
o
rat
o
r se
n
s
o
r:
y=y
es;
n=no
n/y
y
/
15
dSt
Defr
o
st st
o
p temperat
u
re
-50.0
~
99.0
8.0
℃
16
dP
O
Defr
o
st
(
at) P
o
wer
On
. Determi
n
es if at the start-
u
p the c
on
tr
oll
er m
u
st e
n
ter
defr
o
sti
n
g
(
if the temperat
u
re meas
u
red a
llo
ws this
o
perati
on
).
y
=
y
es;
n
=
no
.
n/y
n
/
17
FSt
Fa
n
st
o
p temperat
u
re
-50.0
~
99.0
2.0
℃
18
FAd Fa
n
activati
on
differe
n
tia
l
1.0
~
50.0
2.0
℃
19
Fdt
Fa
n
de
l
a
y
time. De
l
a
y
time i
n
activati
n
g fa
n
s after a defr
o
st
o
perati
on
.
0
~
250
0
mi
n
20
dt
Drai
n
age time. Drippi
n
g time
1
~
250
1
mi
n
21
dFd
Defr
o
st fa
n
disab
l
e. A
llo
ws t
o
se
l
ect the evap
o
rat
o
r pr
o
bes exc
lu
si
on
d
u
ri
n
g defr
o
st.
y
=
y
es;
n
=
no
.
n/y
y
/
22
FC
O
Fa
n
C
o
mpress
o
r
O
FF. A
llo
ws se
l
ecti
n
g c
o
mpress
o
r fa
n
s
lo
c
k
O
FF
(
switched
o
ff).
y
=
fa
n
s activated;
n
=
fa
n
s
o
ff
n/y
y
/
23 HA
L
High A
l
arm differe
n
tia
l
0.1
~
20.0
4.0
℃
24
L
A
L
Lo
w A
l
arm differe
n
tia
l
0.1
~
20.0
4.0
℃
25
PA
O
P
o
wer-
on
A
l
arm
O
verride. A
l
arm exc
lu
si
on
time after c
on
tr
oll
er switch
on
o
r after a
p
o
wer fai
lu
re.
0
~
15
0
h
ou
r
26 dA
O
Defr
o
st A
l
arm
O
verride. A
l
arm exc
lu
si
on
time after defr
o
st.
0
~
250
0
mi
n
27
tA
O
Temperat
u
re A
l
arm
O
verride. Temperat
u
re a
l
arm sig
n
a
l
de
l
a
y
time.
0
~
250
0
mi
n
28
LO
C
K
e
y
b
o
ard
lo
c
k
i
n
g.
y
=
y
es;
n
=
no
n/y
n
/
29
PA1 Passw
o
rd 1.
0
~
250
5
/
30
n
dt
nu
mber disp
l
a
y
t
y
pe. View with decima
l
p
o
i
n
t.
y
=
y
es;
n
=
no
n/y
y
/
31
CA1
Ca
l
ibrati
on
1. P
o
sitive
o
r
n
egative temperat
u
re va
lu
e added t
o
the va
lu
e read b
y
pr
o
be 1.
-12.0
~
12.0
0
℃
32
CA2
Ca
l
ibrati
on
2. P
o
sitive
o
r
n
egative temperat
u
re va
lu
e added t
o
the va
lu
e read b
y
pr
o
be 2.
-12.0
~
12.0
0
℃
33
dd
L
Defr
o
st disp
l
a
y
Lo
c
k
. Viewi
n
g m
o
de d
u
ri
n
g defr
o
sti
n
g.
0
=
sh
o
ws the temperat
u
re read b
y
the cabi
n
et pr
o
be;
1
=
lo
c
k
s the readi
n
g
on
the temperat
u
re va
lu
e read b
y
cabi
n
et pr
o
be whe
n
defr
o
sti
n
g starts, a
n
d
un
ti
l
the
n
ext time the Set-p
o
i
n
t va
lu
e is reached;
2
=
disp
l
a
y
s
“
dEF
”
d
u
ri
n
g defr
o
sti
n
g, a
n
d
un
ti
l
the
n
ext time the Set-p
o
i
n
t va
lu
e is
reached.
0
/
1
/
2
1
/
ECS-974neo is a universal standard temperature controller.
