EasyManua.ls Logo

STATUS SCIENTIFIC CONTROLS MCU3 - Example of Connection to a Status Scientific Controls Traffic Light Unit

Default Icon
61 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
TD06/001
Issue:
6
Change Note:
1696
Page 8-3
8.3 Example of Connection to a Status Scientific Controls Traffic Light Unit
The above example shows the MCU being used to control a traffic light unit that for example, may be used outside the entry door of a building.
This configuration uses the common alarm level relay contacts for alarm levels 1 & 2 such that if any channel reaches an alarm level then either
the Amber or Red light is illuminated and the sounder operated. The relays are configured to be energised in the healthy state. The green light is
illuminated via the normally open contacts of RL1a, RL2a and the Fault relay contacts RL4a.
RL3a RL3b RL4a RL4b
RL2b RL2a RL1b RL1a
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Detector Head
Connections
Analogue
Output
Relay 3
Relay 2
Relay 1
CHANNEL 4
24V
24V
0V
0V
12
11
10
9
8
7
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Detector Head
Connections
Analogue
Output
Relay 3
Relay 2
Relay 1
CHANNEL 2
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Detector Head
Connections
Analogue
Output
Relay 3
Relay 2
Relay 1
CHANNEL 3
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Detector Head
Connections
Analogue
Output
Relay 3
Relay 2
Relay 1
CHANNEL 1
Common
Sounder
Green
Amber
Red
RED
AMBER
GREEN
SOUNDER
MCU Control Panel
Traffic Light Unit
Stock No. SS366

Table of Contents