3. Commissioning3.3 Switch on3.3 Switch onBefore switching the device on, check the power supplies, inputs, outputs, and anyexpansion devices and Ethernet connections to make sure that they are properly con-nected.3.3.1 Startup behavior of easyE4 control relays with LED indicatorsIf there is no program, the control relay will start in STOP mode.These devices without a display and controls feature 2 LEDs that indicate the state ofthe Ethernet port and the device status.If there is an executable program on the easyE4 control relays, the device will start inRUN mode.In addition to having a valid program on the control relay,please make sure that there are no peripheral faults that willlead to STOP mode.Device models without a display feature LED indicators in the front:l 1. POW/RUNl 2. ETHERNET (base devices only)Figure 45: LED indicators on EASY-E4-...-12...CX1LED POW/RUN base deviceThe POW/RUN LED indicates the state of the POW power supply as well as the STOPor RUN state.Off Malfunction or no supply voltageGreen, continuous light Supply voltage OK, RUN modeGreen,Flashing, 1 HzSupply voltage OK, STOP modeGreen,Flashing, 4 HzFault at one of the expansions,between the easyE4 device and the EASY-E4-CONNECT1 connector76 easyE4 11/18 MN050009 EN www.eaton.com
