Eliwell EWDR 983/CS - Page 11

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 12Vc/20mA (E) see par. H25
(alarm default)
10-12 RS485 network (/CS LX models only)
13-14 Power supply 230Va
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 250Va
Relay output (B) 8A 1/2 hP 250Va
EWDR 985/CS (LX)
Relay output (C) 15A 1hP 250Va
Relay output (A) (B) (D) 8(3)A 1/2hP 250Va
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
OFtOnt
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
23456789 10 11 12
13
14 17 19 20 21
22 23
TTL
A
(A)
(B) (C)
(D)
AUX OUT
12VC/20mA
Power
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)
Power
Supply
EWDR 985 (/CS LX)
(C)
1615
RS 485
+ - GND
H24 H22 H21 H23
H24 H21
cod. 9IS43068 - GB - rel. 3/08 © Eliwell Controls s.r.l. 2008 All rights reserved.
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