Emerson PACSystems RSTi-EP - LED Indicators EP-5442

User Manual Section 5
GFK-2958L May 2021
Detailed Description of I/O Modules 279
5.22.1 LED Indicators EP-5442
Module Status
Green: Communication over the system bus
Red: Module System Fault or Diagnostic Fault
1.1
Yellow: PWM output 0 – 100%, P-switching
Yellow flashing at 2 Hz: PWM output 0 is > 0 and < 100%,
PN-switching or P-switching
1.2
1.3
1.4
2.1
2.2
2.3
2.4
3.1
Yellow: PWM output 1 – 100%, P-switching
Yellow flashing at 2 Hz: PWM output 0 is > 0 and < 100%,
PN-switching or P-switching
3.2
3.3
3.4
4.1
4.2
4.3
4.4
For error messages refer to Section 12, LED Indicators and Troubleshooting.
Figure 158: Block Diagram EP-544