Appendix A
A.1 I/O Connections and Wiring
Table A- 3
Input/Output Wiring (TB3) - 7ME39400AL04 Expanded I/O Module
Pin#
Signal
1
K1 A
2
K1 B
3
K1 C
4
GND
5
K2 A
6
K2 B
7
K2 C
8
K3 A
9
K3 B
10
K3 C
11
GND
12
K4 A
13
K4 B
14
K4 C
K1-A
*K1-B
K1-C
GND
K2-A
*K2-B
K2-C
K3-A
*K3-B
K3-C
GND
K4-A
*K4-B
K4-C
Figure A-3
Note
Relays shown in Power OFF position, which is the same as the alarm assertion position.
48
Definition
Relay 1 Normally Open
Relay 1 Normally Closed
Relay 1 Common
Digital Return (GND)
Relay 2 Normally Open
Relay 2 Normally Closed
Relay 2 Common
Relay 3 Normally Open
Relay 3 Normally Closed
Relay 3 Common
Digital Return (GND
Relay 4 Normally Open
Relay 4 Normally Closed
Relay 4 Common
TB3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
7ME39400AL04 TB3 I/O Relay Wiring
Description
Function
Dual Path Only
Relay 1
Alarm or control
functions set by CH
3.
DGND
Relay 2
Alarm or control
functions set by CH
3.
Relay 3
Alarm or control
functions set by CH
3.
DGND
Relay 4
Alarm or control
functions set by CH
3.
FUT1010 IP65 NEMA 4X & IP66 NEMA 7 Gas Quick Start
Operating Instructions, 1/2013, A5E02639183-AC
Function
Quad Path Only
Alarm or control
functions set by
CH5.
Alarm or control
functions set by
CH5.
Alarm or control
functions set by
CH5.
Alarm or control
functions set by
CH5.