Universal Robots E Series

All rights reserved 137 Service Manual e-Series (EN) 1.1.8
6.4 LED indicators and Fuse on Safety Control Board
6.4.1 LED Indicators on Safety Control Board
The below LEDs are “power” LEDs. They are either on or off.
LED for power
Green permanent = Power on
No color permanent = Error or no power
+24V
+12V
+12V AUX
+5V
+5V PC
+3.3V Safety A
+3.3V Safety B
+3.3V FPGA
+3.3V PC
-4V for Analog
+1.8V/+2.5V FPGA
+48V Teach Pendant