(3)
IV. Conversion Module Wiring Diagram (Continued)
Conversion Module Installation and Application Considerations
The 1771-OBD module output current limits versus 1756-OB16E limits are as follows:
1771-OBD
1756-OB16E w/ 1492-CONCAB005X
a) Current/Point
2A
1A
b) Current/Module
8A
4A
c) Surge Current/point 4A for 10ms
2A for 10ms
The 1771-OBD has a single 10A, 250V rectifier fuse (1/4 x 1 1/4 inch). The 1756-OB16E is electronically fused per
group. Refer to the 1756-OB16E Installation Manual for details on electronic fusing.
The 1492-CONCAB005X is limited to 3A per pin.
The 1771-OBD is rated 10V to 60V DC. The 1756-OB16E is rated 10V to 31.2V DC. If the load source voltage is greater
than 30V DC, then use the 1756-OC8 with the 1492-CM1771-LD008F conversion module.
Refer to your 1771-OBD and 1756-OB16E Installation Manual wiring schematics and diagrams for more details.
Ensure
1756 output module ratings are not exceeded.
[Reference Doc: 41170-936 (Version 00)]
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and output module). Read and understand these
considerations before installation. In addition, refer to the current draw requirements of the existing
loads for this configuration to ensure they are within the current ratings of the 1756 output module.
WARNING
PN-40379
DIR 10000045375
(Version 00)
+
+
-
-
1756-OB16E
10
DC-0+
OUT-0
1
OUT-1
2
OUT-2
3
OUT-3
4
OUT-4
5
OUT-5
6
OUT-6
7
OUT-7
8
OUT-8
11
OUT-9
12
OUT-10
13
OUT-11
14
OUT-12
15
OUT-13
16
OUT-14
17
OUT-15
18
1492-CONCAB005X
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
Blue/Black
Black/White
Red/White
Green/White
Blue/White
Black/Red
White/Red
Orange/Red
Blue/Red
Red/Green
DC-1+
20
9
RTN OUT-0
19
RTN OUT-1
A
1
00
19
01
3
02
4
03
5
04
6
05
7
06
8
07
9
E
10
11
10
12
11
13
12
13
15
14
16
15
17
16
17
18
20
14
1492-CM1771-LD006
2
Output 14
Output 16
Output 15
Output 17
Output 04
Output 06
dc Output
Device
Output 05
Output 07
Output 00
Output 02
Output 01
Output 03
Output 10
Output 12
Output 11
Output 13
+ dc
L2
Conversion: 1771-OBD to 1756-OB16E with 1492-CM1771-LD006
1771-WH, WHF, WHFB Swing Arm
B
C
D
+ dc
+ dc
+ dc
24
21
22
23
25