TROUBLESHOOTING
Display
Possible cause/Suggested solution
L1 phase loss
L2 phase loss
L3 phase loss
This trip is not adjustable.
During pre-start checks the starter has detected a phase loss as
indicated.
In run state, the starter has detected that the current on the
affected phase has dropped below 10% of the programmed
motor FLC for more than 1 second, indicating that either the
incoming phase or connection to the motor has been lost.
Check the supply and the input and output connections at the
starter and at the motor end.
Related parameters: None
L1-T1 shorted
L2-T2 shorted
L3-T3 shorted
During pre-start checks the starter has detected a shorted SCR
or a short within the bypass contactor as indicated.
Related parameters: 6S
Low Control Volts
The EMX4e has detected a drop in the internal control voltage.
•
Check the external control supply (A1, A2, A3) and reset the
starter.
If the external control supply is stable:
•
the 24 V supply on the main control PCB may be faulty; or
•
the bypass driver PCB may be faulty. Contact your local
supplier for advice.
This protection is not active in Ready state.
Related parameters: None
Low Flow
The flow sensor connected to the smart card has activated low
flow protection.
Related parameters: 30E, 30G, 30H, 31B, 31C, 31D, 36G
Low Pressure
The pressure sensor connected to the smart card has activated
low pressure protection.
Related parameters: 30A, 30C, 30D, 32D, 32E, 32F, 36E
Low Water
The depth sensor connected to the smart card has activated
depth protection.
Related parameters: 30L, 30N, 30O, 34A, 34B, 34C, 36I
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EMX4e User Manual (710-18433-00C)