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Terminal Function
Output: Individual run signal pump 1
2/3
Output: Individual fault signal pump 1
4/5
Output: Individual fault signal pump 2
8/9
Output: Individual run signal pump 2
10/11
Output: Collective run signal
13/14/15
16/17/18 Output: Collective fault signal
Output: Power output
19/20
Input: Extern OFF
21/22
Input: "Dry-running protection" float switch
25/26
Input: "All pumps off" float switch
27/28
Input: "Pump 1 on" float switch
29/30
Installation and operating instructions Wilo-Control EC-L
All manuals and user guides at all-guides.com
Appendix
Wiring diagram EC-L1... and EC-L2...
1
2
3
4
1
19
20
21
22
24 V
37
38
39
40
1
2
55 56 57 58 59 60
!
1
5
6
7
8
9
10
1
2
23
24
25
26
27
28
off
!
1 + 2
41
42
43
44
45
46
0-10 V
4-20 mA
In
2
Terminal Function
31/32
Input: "Pump 2 on" float switch
33/34
Input: "High water" float switch
37/38
Input: Thermal winding monitor pump 1
39/40
Input: Thermal winding monitor pump 2
41/42
Output: Analogue output for displaying the actual level
value
45/46
Input: Level sensor 4 – 20 mA
49/50
Input: Leakage detection pump 1
51/52
Input: Leakage detection pump 2
55/56
Input: "Dry-running protection" float switch (ex-mode)
57/58
Input: Thermal winding monitor pump 1 (ex-mode)
59/60
Input: Thermal winding monitor pump 2 (ex-mode)
11
12
13
14
15
16
2
29
30
31
32
33
34
on
on
1
2
47
48
49
50
51
52
1
2
en
17
18
35
36
53
54
99
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