Norsup 7026965 Manuel D'installation Et D'instructions page 24

4. OPERATION AND USE
Prot.
EC fan feedback
F051
Fault
Pressure sensor
Fault
Fan Motor1
F031
Fault
Fan Motor2
F032
Fault
Communication
Fault (speed E081
control module)
Frequency conversion board fault table:
Fault
Protection/fault
display
Drv1 MOP alarm F01
Inverter offline F02
IPM protection F03
Comp. Driver
F04
Failure
DC Fan Fault F05
IPM Overcurrent F06
Inv. DC
F07
Overvoltage
Inv. DC Less
F08
voltage
Inv. Input Less
F09
voltage.
Inv. Input Overvolt. F10
Inv. Sampling Volt. F11
Comm. Err F12
There is something wrong with fan
motor and fan motor stops running
PP The pressure Sensor is broken
1. Motor is in locked-rotor state
2.The wire connection between
DC-fan motor module and fan
motor is in bad contact
1. Motor is in locked-rotor state
2.The wire connection between
DC-fan motor module and fan
motor is in bad contact
Speed control module and main
board communication fail
Reason
MOP drive alarm
Frequency conversion board and
main board
failure
IPM modular protection
Lack of phase, step or drive
hardware damage
Motor current feedback open
circuit or short circuit
IPM Input current is large
DC bus voltage>Dc
over-voltage protection value
DC bus voltage<Dc
over-voltage protection value
The input voltage is low, causing
the input current is high
The input voltage is too high,
more than outage protection
current RMS
The input voltage sampling fault
DSP and PFC connect fault
Check whether fan motor is broken
or locked or not
Check or change the pressure
Sensor or pressure
1.Change a new fan motor
2.Check the wire connection and
make sure they are in good contact
1.Change a new fan motor
2.Check the wire connection and
make sure they are in good contact
Check
connection
Elimination methods
Recovery after the 150s
communication Check the communication connection
Recovery after the 150s
Check the measuring voltage
Check frequency conversion board
hardware
Check whether current return wires
connected motor
Check
measurement
bus
Check the input voltage measurement
bus
Check the input voltage measurement
Check the input voltage measurement
Check the input voltage measurement
Check
measurement
Check the communication connection
the communication
and adjust the current
and adjust the current