C1300
Advanced circular chart recorder
5 Electrical Installation
70
IM/C1300 Rev. J
5.3 Module Connections
5.3.1 Standard I/O or Relay
(Module Types 1, 2 and 7)
The connections are the same as Channel connections to the
main board. Refer to Section 5.2.
5.3.2 Four Relay Module (Module Type 3)
5.3.3 Eight Digital Inputs or Outputs
(Module Types 4 and 5 respectively)
A plug-in link is used to select the board's function; digital inputs
or digital outputs – see Fig. 5.7. The maximum current drain
from each TTL output must not exceed 5mA.
Fig. 5.6 Four Relay Module Connections (Module Type 3)
1
2
7
8
9
10
11
12
3
4
5
6
Normally Closed
Normally Open
Common
Normally Closed
Normally Open
Common
Normally Closed
Normally Open
Common
Normally Closed
Normally Open
Common
Relay 1
Relay 2
Relay 3
Relay 4
1
2
7
8
9
10
11
12
3
4
5
6
Normally Closed
Normally Open
Common
Normally Closed
Normally Open
Common
Normally Closed
Normally Open
Common
Normally Closed
Normally Open
Common
Relay 1
Relay 2
Relay 3
Relay 4
Fig. 5.7 Selecting the Digital Module Function
(Module Types 4 and 5)
Fig. 5.8 Eight Digital Inputs or Outputs Connections
(Module Types 4 and 5)
Digital Outputs
PL2
PL2
2
1
3
4
2
1
3
4
Digital Inputs
PL2
1
4
1
2
7
8
9
10
11
12
3
4
5
6
Common
Common
Input 1
Output 1
Input 2
Output 2
Input 3
Output 3
Input 4
Output 4
Input 5
Output 5
Input 6
Output 6
Input 7
Output 7
Input 8
Output 8
Common
Common
Input
Connections
Output
Connections
or
Notes.
1. Fuse rating – 500mA (20 X 5mm) Type T.
2. Ensure that the Earth (Ground) lead is longer than
the Line and Neutral leads.
