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