Technical data

26 Rockwell Automation Publication 1769-TD005I-EN-P - August 2014
CompactLogix Controllers Specifications
Figure 8 - Maximum Output Current per Module - 24V DC Operation
Temperature Derated Current
40 °C (104 °F) 4 A
55 °C (131 °F) 2 A
60 °C (140 °F) 1 A
Table 17 - Embedded Power Supply
Attribute 1769-L24ER-QB1B, 1769-L24ER-QBFC1B, 1769-L27ERM-QBFC1B
Input voltage range 19.2…31.2V DC
Input voltage, nom 24V DC
Line requirement, max
(1)
(1) Value rated at the following ambient temperatures: 40 °C (104 °F), 55 °C (131 °F), 60 °C (140 °F).
2.1 A @ 24V DC, Class 2/SELV
Available 5V DC bus current • 1769-L24ER-QB1B: 1.54 A
• 1769-L24ER-QBFC1B and 1769-L27ERM-QBFC1B: 1.0 A
Available 24V DC bus current • 1769-L24ER-QB1B: 0.95 A
• 1769-L24ER-QBFC1B and 1769-L27ERM-QBFC1B: 0.8 A
Inrush, max < 30 A @ 19.2…31.2V DC
Line loss ride through 10 ms…10 s
Short circuit protection Internal fuse
Not user replaceable
Overvoltage protection Yes
Isolation voltage 30V AC/30V DC (continuous), reinforced insulation type
Type tested at 500V AC or 710V DC for 60 s; outputs to system backplane
0
1
2
3
4
5
0 (32) 10 (50) 20 (68) 30 (86) 40 (104) 50 (122) 60 (140) 70 (158)
Current Derating Based on Temperature
Ambient Temperature °C (°F)
Current per Module (A)
1 A at 60 °C (131 °F)