3
6
Fault Finding
Problem
Possible Cause
No response or missing
Incorrect address setting
Incorrect loop wiring (polarity reversed)
Failure to operate
Control panel has incorrect cause and effect
programming
Technical Data
Operating Voltage
17—28V DC
Switch on Surge
1.2mA for 1s
Quiescent
500µA
Sounder Operating
Variable
Nominal Sounder Output
Sounder Sounder
± 3dB(A) at 28V only and VAD
Level 1 (60dB(A))*
1mA
9.4mA
Level 2 (70dB(A))
1.3mA
9.7mA
Level 3 (74dB(A))
1.6mA
10mA
Level 4 (78dB(A))
2.1mA
10.4mA
Level 5 (82dB(A))
2.8mA
11mA
Level 6 (86dB(A))
4mA
13mA
Level 7 (90dB(A))
5.5mA
14mA
* Not EN54-3 compliant
VAD Only Operated
9mA
VAD Frequency
0.5Hz
IP Rating
IP21C
Sound pressure level information published in document PP2203 and isolator operation
information published in document PP2090, both available on request.
For further technical information please refer to PP2476.
Analogue Values
Analogue Value
Status
Analogue Value
Status
0
Flash Memory Fail
17
Sounder Volume 1
1
Sounder Fail
18
Sounder Volume 2
2
VAD Fail
19
Sounder Volume 3
3
Sounder and VAD Fail
20
Sounder Volume 4
4
General Fault
21
Sounder Volume 5
22
Sounder Volume 6
23
Sounder Volume 7
Address Setting
The address of the Discovery Sounder VAD Base is set using segments 1-7 of the DIL switch
and are set to “0” (ON) or “1”, using a small screwdriver or similar tool. A complete list of
address settings is shown below. If a detector is to be tted, set the address as described on
page 4.
DIL switch
DIL switch
DIL switch
DIL switch
DIL switch
setting
setting
setting
setting
setting
addr
1234567
addr
1234567
addr
1234567
addr
1234567
addr
1234567
1
1000000
11
1101000
21
1010100
31
1111100
41
1001010
2
0100000
12
0011000
22
0110100
32
0000010
42
0101010
3
1100000
13
1011000
23
1110100
33
1000010
43
1101010
4
0010000
14
0111000
24
0001100
34
0100010
44
0011010
5
1010000
15
1111000
25
1001100
35
1100010
45
1011010
6
0110000
16
0000100
26
0101100
36
0010010
46
0111010
7
1110000
17
1000100
27
1101100
37
1010010
47
1111010
8
0001000
18
0100100
28
0011100
38
0110010
48
0000110
9
1001000
19
1100100
29
1011100
39
1110010
49
1000110
10
0101000
20
0010100
30
0111100
40
0001010
50
0100110
51
1100110
61
1011110
71
1110001
81
1000101
91
1101101
52
0010110
62
0111110
72
0001001
82
0100101
92
0011101
53
1010110
63
1111110
73
1001001
83
1100101
93
1011101
54
0110110
64
0000001
74
0101001
84
0010101
94
0111101
55
1110110
65
1000001
75
1101001
85
1010101
95
1111101
56
0001110
66
0100001
76
0011001
86
0110101
96
0000011
57
1001110
67
1100001
77
1011001
87
1110101
97
1000011
58
0101110
68
0010001
78
0111001
88
0001101
98
0100011
59
1101110
69
1010001
79
1111001
89
1001101
99
1100011
60
0011110
70
0110001
80
0000101
90
0101101
100
0010011
101
1010011
106
0101011
111
1111011
116
0010111
121
1001111
102
0110011
107
1101011
112
0000111
117
1010111
122
0101111
103
1110011
108
0011011
113
1000111
118
0110111
123
1101111
104
0001011
109
1011011
114
0100111
119
1110111
124
0011111
105
1001011
110
0111011
115
1100111
120
0001111
125
1011111
126
0111111