Norsup P31V/32 - Interface Diagrams and Definitions

4. OPERATION AND USE
DSP-PFC
Input Over Cur.
F26
The equipment load is too large
PFC fault
F27
The PFC circuit protection
Check the PFC switch tube short
circuit or not
IPM Over heating
F15
The IPM module is overheat
Check and adjust the current
measurement
Weak Magnetic
Warn
F16
Compressor magnetic force is
not enough
Inv. Input Out
Phase
F17
The input voltage lost phase
Check and measure the voltage
adjustment
IPM Sampling Cur.
F18
IPM sampling electricity is fault
Check and adjust the current
measurement
Inv. Temp. Probe
Fail
F19
Sensor is short circuit or open
circuit
Inspect and replace the sensor
Inverter
Overheating
F20
The transducer is overheat
Check and adjust the current
measurement
Inv. Overheating
Warn
F22
Transducer temperature is too
high
Check and adjust the current
measurement
Comp. Over Cur.
Warn
F23
Compressor electricity is large
The compressor over-current
protection
Input Over Cur.
Warn
F24
Input current is too large
Check and adjust the current
measurement
EEPROM Error
Warn
F25
MCU error
Check whether the chip is damaged
Replace the chip
V15V
over/undervoltage
fault
F28
The V15V is overload or
undervoltage
Check the V15V input voltage in
range 13.5v~16.5v or not
(2) Parameter list
Meaning
Default
Remarks
Refrigeration target temperature set point
28℃
Adjustable
Heating the target temperature set point
28
℃
Adjustable
Automatic target temperature set point
27
℃
Adjustable
4.4 Interface draw in
(1) Wire control interface diagram and definition
Sign
Meaning
V
12V (power +)
R
No use
T
No use
A
485A
B
485B
G
GND (power-)