WIRING DIAGRAM EWDR 983-985 (/CS LX)
SHARED TERMINALS
1-2
Probe input 1 (room probe)
1-3
Probe input 2 (evaporator probe)
1-4
Probe input 3 (display or 2nd evaporator probe)
5-6
Digital input 1
5-7
Digital input 2
8-9
Auxiliary output 12V
c
/20mA (E) see par. H25
(alarm default)
10-12
RS485 network (/CS LX models only)
13-14
Power supply 230V
a
A
TTL input for Copy Card
EWDR 983 /CS (LX)
15-16*
N.O. relay output (B) see par. H24 (defrost default)
15-17*
N.C. relay output (B) see par. H24 (defrost default)
20/21-22*N.O. relay output (C) see par. H21 (compressor default)
19-22*
N.C. relay output (C) see par. H21 (compressor default)
EWDR 985 /CS (LX)
15-16*
N.O. relay output (A) see par. H24 (compressor default)
17-18*
N.O. relay output (B) see par. H22 (defrost default)
17-19*
N.C. relay output (B) see par. H22 (defrost default)
20/21-22*N.O. relay output (C) see par. H21 (light default)
23-24*
N.O. relay output (D) see par. H23 (fan default)
* Relay characteristics
EWDR 983/CS (LX)
Relay output (C) 16A 1hP 250V
a
Relay output (B) 8A 1/2 hP 250V
a
EWDR 985/CS (LX)
Relay output (C) 15A 1hP 250V
a
Relay output (A) (B) (D) 8(3)A 1/2hP 250V
a
EWDR 983-985/CS (LX) - EWDR 985/CSK (LX)
11/12
Ont, OFt parameters programmed
for Duty Cycle
Ont
OFt
Compressor output
0
0
OFF
0
>0
OFF
>0
0
ON
>0
>0
dc
OUT
On
Off
OFt
Ont
Ont
The error condition for probe 1
(compressor) causes the following:
- E1 code appears on display
- the controller is activated as
indicated
by the “Ont” and “OFt” parame-
ters if
programmed for Duty Cycle
DUTY CYCLE DIAGRAM
The technical characteristics in this document concerning
measurements (range, accuracy, resolution, etc.) refer to the
instrument in the strictest sense and not to any accessories
provided such as probes, for example. This means that an
error introduced by the probe is added to any error that is in
the instrument.
EWDR 983-985 (/CS LX)
1 2 3 4 5 6 7 8 9
10 11 12
13 14
17
19 20 21 22 23
TTL
A
(A)
(B)
(C)
(D)
AUX OUT
12V
C
/20mA
Po
w
er
Supply
Pb1
Pb2
Pb3
D
.I.1
D
.I.2
(E)
EWDR 983 (/CS LX)
13 14 15 16 17 18 19 20 21 22 23 24
(B)
Po
w
er
Supply
EWDR 985 (/CS LX)
(C)
16
15
RS 485
+ - GND
H24
H22 H21 H23
H24
H21
cod. 9IS43068
- GB -
rel. 3/08
© Eliwell Controls s.r.l. 2008 All rights reserved.
Eliwell Controls s.r.l.
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Tel39 0437 986 111 • Fac39 0437 989 066
Sales +39 0437 986 100 (Italy) • +39 0437 986 200 (other countries) • E-mail [email protected]
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