1 Electronic motor starter EMS
1.5 Description of device
40 Elektronischer Motorstarter EMS/Electronic Motor Starter EMS 04/15 MN03407009Z-DE/EN www.eaton.com
1.5.5 Status LEDs
EMS electronic motor starters feature four LEDs that are used to indicate
their operating state. These LEDs have the following designations and col-
ors:
Table 4: LEDs at DOL starters (EMS-D…)
Table 5: LEDs at reversing starter (EMS-R…)
After the supply voltage is applied, all four LEDs will light up once to ensure
that they are working.
The green PWR LED indicates the device‘s general status.
The red ERR LED is used to signal external faults (process faults: overcur-
rent, imbalance, phase failures). When this occurs, the device will be in a
safe, disconnected state. To leave this state, you will have to acknowledge
the fault (￫ Chapter 4, “Device status and fault detection“, Page 50).
The green ON, L, and R LEDs are used to indicate when the motor is running
anticlockwise or clockwise.
1.5.6 Reset button
Faults are categorized as either process errors (e.g., phase failures) or device
errors (e.g., internal device faults). Process error conditions can be acknow-
ledged manually by pressing the Reset pushbutton (￫ Chapter 4, “Device
status and fault detection“).
The Reset button is also used to check the set rated motor current
(￫ Chapter 3, “Commissioning“).
Designation Color
PWR green
ERR red
ON green
Designation
Color
PWR
green
ERR red
L green
R green
￫
For a detailed description of the various possible combinations
between the status LED states and what they mean, please
refer to ￫ Chapter 4, “Device status and fault detection“.
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