Wiring connections for the terminal base units – Rockwell Automation 1794-TB62DS, 1794-TB37DS, 1794-TB62EXD4X15, 1794-TB37EXD4CM8, 1794-TB37EXD4VM8 FLEX I/O D-Shell Terminal Base Units User Manual
Page 3
FLEX I/O D-Shell Terminal Base Units and Distribution Boards 3
Publication 1794-IN107A-EN-P - March 2005
Wiring Connections for the Terminal Base Units
Distribution Boards for the 1794-TB37DS and 1794-TB62DS D-Shell
Terminal Bases
The distribution boards mount on the terminal base and provide multiple
input/output ports. By using the distribution boards, you can use individual
wiring for each of the channels. Refer to Table 3 for application information on
the distribution boards.
Table 1 Wiring Connections for the 1794-TB37DS D-Shell
Terminal Base Unit
Pin
No.
1
Digital
Modules
1794-IF4I, OF4I,
IF2XOF2I, OE4
1794-IE8
(see note 2)
1794-IE4XOE2
(see note 2)
1
V +24V
2
V +24V
3
V Common
4
Not used
5
Chassis ground
6
Chassis ground
7
Chassis ground
8
Not used
9
Input/Output Ch 14
Ch 3 Voltage
Ch 7 Current
Ch 1 Output Voltage
10
Input/Output Ch 12
Ch 3 Current
Ch 6 Current
Ch 1 Output Current
11
Not used
12
Input/Output Ch 10
Ch 2 Voltage
Ch 5 Current
Ch 0 Output Voltage
13
Input/Output Ch 8
Ch 2 Current
Ch 4 Current
Ch 0 Output Current
14
Not used
15
Input/Output Ch 6
Ch 1 Voltage
Ch 3 Current
Ch 3 Input Current
16
Input/Output Ch 4
Ch 1 Current
Ch 2 Current
Ch 2 Input Current
17
Not used
18
Input/Output Ch 2
Ch 0 Voltage
Ch 1 Current
Ch 1 Input Current
19
Input/Output Ch 0
Ch 0 Current
Ch 0 Current
Ch 0 Input Current
20
V +24V
21
V Common
22
V Common
23
Not used
24
Chassis Ground
25
Chassis Ground
26
Not used
27
Input/Output Ch 15
Ch 3 Voltage Ret
Ch 7 Voltage
Ch 1 Out Voltage Ret
28
Input/Output Ch 13
Ch 3 Current Ret
Ch 6 Voltage
Ch 1 Out Current Ret
29
Not used
30
Input/Output Ch 11
Ch 2 Voltage Ret
Ch 5 Voltage
Ch 0 Out Voltage Ret
31
Input/Output Ch 9
Ch 2 Current Ret
Ch 4 Voltage
Ch 0 Out Current Ret
32
Not used
33
Input/Output Ch 7
Ch 1 Voltage Ret
Ch 3 Voltage
Ch 3 Input Voltage
34
Input/Output Ch 5
Ch 1 Current Ret
Ch 2 Voltage
Ch 2 Input Voltage
35
Not used
36
Input/Output Ch 3
Ch 0 Voltage Ret
Ch 1 Voltage
Ch 1 Input Voltage
37
Input/Output Ch 1
Ch 0 Current Ret
Ch 0 Voltage
Ch 0 Input Voltage
1
5 A current limit per pin. The mountings are tied to chassis ground.
2
V common is the return for all of the analog inputs of 1794-IE8 and IE4XOE2 modules.
Pin 1
1794-TB37DS
+V
-V
+V
-V
Pin 1
1794-TB62DS
+V1 -V1
+V2
-V2
Table 2 Wiring Connections for the 1794-TB62DS D-Shell Terminal
Base Unit
Pin No.
1
Pin No.
1
1
V2 Common
32
Chassis Ground
2
V2 Common
33
Chassis Ground
3
V2 +24V
34
Chassis Ground
4
Input/Output Ch 16
35
Not used
5
Input/Output Ch 17
36
Input/Output Ch 5
6
Input/Output Ch 18
37
Input/Output Ch 6
7
Input/Output Ch 19
38
Input/Output Ch 7
8
Input/Output Ch 20
39
Input/Output Ch 8
9
Not used
40
Input/Output Ch 9
10
Chassis ground
41
Input/Output Ch 10
11
Chassis ground
42
Input/Output Ch 11
12
Chassis ground
43
V2 Common
13
Chassis ground
44
V2 +24V
14
Not used
45
Input/Output Ch 26
15
V1 +24V
46
Input/Output Ch 27
16
V1 +24V
47
Input/Output Ch 28
17
Input/Output Ch 0
48
Input/Output Ch 29
18
Input/Output Ch 1
49
Input/Output Ch 30
19
Input/Output Ch 2
50
Input/Output Ch 31
20
Input/Output Ch 3
51
Not used
21
Input/Output Ch 4
52
Chassis Ground
22
V2 Common
53
Chassis Ground
23
V2 +24V
54
Chassis Ground
24
V2 +24V
55
Chassis Ground
25
Input/Output Ch 21
56
Not used
26
Input/Output Ch 22
57
V1 Common
27
Input/Output Ch 23
58
V1 Common
28
Input/Output Ch 24
59
Input/Output Ch 12
29
Input/Output Ch 25
60
Input/Output Ch 13
30
Not used
61
Input/Output Ch 14
31
Chassis ground
62
Input/Output Ch 15
1
5 A current limit per pin.
Terminal
Base 1794-
24V
dc
120V
ac
230V
ac
Isolation Voltage
TB37DS,
TB62DS
Dependent upon Installed
Module - refer to individual
installation instructions for
your specific module.
P2
P3
P4
P5
CH 0
CH 1
P2
CH 2
CH 3
P3
P4
P5
1794-TB37EXD4VM8 and
1794-TB37EXD4CM8
1794-TB62EXD4X15