Perfecta Pro2, Installation And Operating Manual

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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 supply is not 15V.
E49 Test load does not match
No test load detected or current
measurement does not work properly (MFG.
TEST)
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