Inverter Board Errors - Ideal Heating ECOMOD AHP60 50 kW Installation And Servicing

6.3. Inverter board errors

Error shown in the
display of the main
control board
E861 (Inverter card 1)
-
Too high motor
power
E862 (Inverter card 2)
E871 (Inverter card 1)
-
Température
dissipateur thermique
Inverter élevée
-
E872 (Inverter card 2)
E881 (Inverter card 1)
-
Out of limits supply
voltage
-
E882 (Inverter card 2)
E891 (Inverter card 1)
-
Compressor not
connected to the
power supply-
E 892 (Inverter card 2)
01.07.2022
Error description
IPM (Intelligent Power
Module) temperature
protection (100-125°C)
- Driver H/W over
current during speed
acceleration
- Driver H/W over
current at steady state
- Driver H/W over
current at decel state
- En phase accélération
compresseur
- En régime permanent
compresseur
- En phase décélération
compresseur
- Ambient over
temperature protection
- Heatsink over heat
protection
- IPM temperature
protection (100-125°C)
- PFC module (Power
Factor Correction) over
heat protection (inbox
temperature>95°C)
DC Bus under voltage
protection
Serial 220V : 180 VDC
Serial 380V : 310 VCC
DC Bus over voltage
protection
Serial 220V : 400 VDC
Serial 380V : 800 VCC
Output phase loss
AHP60-50/70 - Installation, Use and Maintenance
Possible Causes
Too high ambient temperature
- Output short circuit (line to
line, line to ground)
- Locked compressor rotor
- The compressor load is too
heavy
- Locked rotor or deteriorated
magnet
- The ambient temperature is
too high
- Faulty sensors
- The voltage fluctation of the
power supply are too high
- A momentary power loss
occourred
- Power supply voltage is too
high
- Malfunction of PFC converter
One or more wires loses is not
connected
Solutions
Check if dirt has accumulated
in the heatsink
Disconnect compressor wiring
and check line to line the short
circuit on the output of the
driver.
Check the wiring between
driver and compressor.
- Reduce ambient temperature
around the driver
- If the temperature is not out
of range, change the driver
- Check input voltage level
- Turn off the HP, wait 2 minutes
and then power on again
- Check input voltage level
- Change the driver
- Check the voltage on the
output phases
-Check if the phases are
correctly connected
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