01-07-2022
57 / 74
AHP60
26/32 kW -
Installation, Use and Maintenance
Error code
Error designation
Probable causes
Solution
E861
- Overcurrent during speed
up
- Overcurrent at permanent
speed regime
- Outlet short circuit (ground
connection)
- Blocked rotor, or heavy load
Unplug compressor cabling
and check each driver line.
Launch card operation without
compressor
Overcurrent during slow-
down
POE protection detects
overcurrent
Compressor cabling phases
are inverted
Check the compressor cabling
line by line and ground fault
- Program on current during
speed-up
- Program on current in
permanent regime
- Program on current during
slow-down
Compressor load too heavy
Check differential pressure
during start driving.
Check externant fan.
Rotor is blocked, or magnet is
damaged
Unplug compressor cabling and
launch electronic card operation
without the compressor
Compressor cabling phases
are inverted
Check the cabling between the
compressor and the card
E871
Heat sink overheat
- IPM module (100-125°C)
- PCF module (>95°C)
- housing (>75°C)
Ambient temperature too high
Check clogging in cooling
phase (fan or sink)
Presence of heat source
nearby
Reduce ambient temperature
around the driver.
Cooling air flow is unsufficient
Increase the housing air flow
E881
DC bus low voltage
Serie 220V: 180 VDC
Serie 380V: 310 VCC
Power supply voltage variations
are too high
Check supply voltage
Temporary current cut occurred
Supply terminals are screws
are weak
Check the terminals
connections strength.
PFC converter failure
Check precharge contactor
Over voltage of DC bus
- Serie 220V: 400VDC
- Serie 380V: 800VCC
Power supply voltage too high Check supply voltage.
PFC converter failure
Check the bus condensator
voltage and replace PFC card
if the failure is continuous
E911
Output current exceeded the
driver overcharge capacity
Charge compressor is too
heavy.
Reduce compressor load.
Driver capacity is too low.
Increase appropriately the
driver capacity.
E921
PFC converter on current
(only F008i-2PHB)
Input short circuit
Unplug the power supply and
check the short circuit between
the PFC phases input
Short circuit or leakage on
reactor
Check the reactor's insulation
and inductance
Input voltage sensor cabling
fault
Check the input voltage sensor
cabling.
E941
PFC converter fault
(only F008i-PHB)
Cabling input phase sequence
is negative, or pashe loss
Check the cabling input voltage
level
Bad contact on PFC control
signals connector
Check PFC control signals
cabling
E951
Error on heater temperature
sensor
Temperature sensor's cable is
broken
Check the heater temperature
and the sensor cabling
Temperature sensor may be
damaged
Restart the driver, replace the
sensor if the error remains
Housing temperature sensor
error
The sensor may be damaged
Restart the driver, replace the
mothercard if the default is
continuous.