37
6
ERROR AND TROUBLESHOOTING
If pump failure occurs, the error code will appear on the display.
Error code
Description
Probable cause
E1x
Load errors
E10 (drY)
Low motor load
Low load detected. Pump is running dry.
E11
High motor load
Motor might be faulty or viscous medium is present.
E2x
Protection active
E22 (hot)
Converter temperature limit
Circuit is too hot and power was reduced to less than 2/3 of rated
power.
E23
Converter
temperature
protection
Circuit is too hot to run, pump stopped
E24
Converter overcurrent
Hardware overcurrent protection triggered.
E25
Overvoltage
Line voltage is too high
E26
Undervoltage
Line voltage is too low for proper operation.
E27
PFC Overcurrent
Power correction circuit current cannot be controlled
E3x
Pump errors
E31
Software motor protection
active.
Average motor current was too high, pump load is much higher
than expected
E4x
Device specific error codes
E40
General frequency converter
error
Electrical circuitry did not pass self-test.
E42 (LEd)
LED faulty
One of the display segment diodes is faulty (open/short)
E43 (con)
Communications failed
Display board does not detect proper connection to main board,
but power supply is present
E44
DC link current offset
Voltage on DC link shunt (R34) not in expected range
E45
Motor temperature outside
limits
During MFG. TEST, this is 10 kΩ, 1% resistor for 10 °C..30 °C During
operation, expected values are -55 °C..150 °C
E46
Circuit temperature outside
limits
During MFG. TEST, this is 0 °C..50 °C. During operation, expected
values are -55 °C..150 °C
E47
Voltage reference outside
limits.
Comparison between internal references does not match
E48
15V outside limits
15V power supply is not 15V.
E49
Test SW
Pump has to be reprogramed.
E5x
Motor error codes
E51
Motor parameters out of
range
Motor does not behave as expected
E52
Thermal protection active
Motor temperature is too hot to operate.
E53
Invalid model selected
Pump model not valid or out of reach.
Pump is non-responsive
Turn power on and off.
Pump doesn’t work
Check electrical installation and fuse.
Содержание Ego 2 slim
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