TROUBLESHOOTING
Display
Possible cause/Suggested solution
Current Read Err Lx
Where 'X' is 1, 2 or 3.
Internal fault (PCB fault). The output from the CT circuit is not
close enough to zero when the SCRs are turned off. Contact your
local supplier for advice.
Related parameters: None
Depth Sensor
The smart card has detected a fault with the depth sensor.
Related parameters: 30L, 36C
EEPROM fail
An error occurred loading data from the EEPROM to RAM when
the keypad powered up. If the problem persists, contact your
local distributor.
Related parameters: None
Excess start time
Excess start time trip can occur in the following conditions:
•
parameter 1B
Motor Full Load Current
is not appropriate for
the motor
•
parameter 2D
Current Limit
has been set too low
•
parameter 2B
Start Ramp Time
has been set greater than the
setting for 5G
Excess Start Time
•
parameter 2B
Start Ramp Time
is set too short for a high
inertia load when using Adaptive Control
Related parameters: 1B, 2B, 2D, 3D, 3F
Firing Fail Px
Where 'X' is phase 1, 2 or 3.
The SCR did not fire as expected. The SCR may be faulty or there
may be an internal wiring fault.
Related parameters: None
Flow Sensor
The smart card has detected a fault with the flow sensor.
Related parameters: 30E, 36B
Flow Switch
The flow switch sensor (smart card terminals C23, C24) has
closed.
Related parameters: 30E, 36H
Frequency
This trip is not adjustable.
The mains frequency has gone beyond the specified range.
Check for other equipment in the area that could be affecting the
mains supply, particularly variable speed drives and switch mode
power supplies (SMPS).
If the EMX4e is connected to a generator set supply, the
generator may be too small or could have a speed regulation
problem.
Related parameters: 6K
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EMX4e User Manual (710-18433-00C)