Technical data

16 Rockwell Automation Publication 1769-TD005I-EN-P - August 2014
CompactLogix Controllers Specifications
Embedded DC Output Temperature Derating
The area within the curves represents the safe operating range for the embedded DC outputs under various conditions of
user supplied voltages and ambient temperatures.
Current per module, max 1769-L24ER-QB1B:
6.64 A @ 40 °C (104 °F)
4.0 A @ 60 °C (140 °F)
1769-L24ER-QBFC1B, 1769-L27ERM-QBFC1B:
6.64 A @ 40 °C (104 °F)
4.64 A @ 55 °C (131 °F)
4.0 A @ 60 °C (140 °F)
Surge current per point, max 2.0 A for 10 ms per point, repeatable every 2 s
Isolation voltage 75V (continuous), Reinforced Insulation Type
Type tested at 1200V AC for 1 s and at 1700V DC for 1 s; group to system, group to group
Isolated groups Group 1: inputs 0…7
Group 2: inputs 8…15
Table 10 - Embedded DC Output Specifications
Attribute 1769-L24ER-QB1B, 1769-L24ER-QBFC1B, 1769-L27ERM-QBFC1B
0.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
40 °C (104 °F) 50 °C (122 °F) 60 °C (140 °F)
4.00
4.50
5.00
5.50
6.00
6.50
7.00
7.50
8.00
40 °C (104 °F) 50 °C (122 °F) 60 °C (140 °F)
Figure 2 - Embedded DC Outputs Maximum Amperes per Module versus Temperature
Figure 1 - Embedded DC Outputs Maximum Amperes per Point versus Temperature
Ambient Temperature
Ambient Temperature
Maximum Amperes per Point
Maximum Amperes per Module