DAYLIFF SUNVERTER B, Инструкция по установке и эксплуатации

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Fault Type Possible Causes
Solutions
Fault
Code
IGBT Phase U
Fault
1. Acceleration is too fast
2. The IGBT of corresponding
phase is damaged internally
3. Misoperation caused by
interference
4. Bad connection of driving
wires 1. Increase acceleration time
2. Contact Dayliff for help
3. Check whether there are strong
interference sources in the peripheral
devices
4. Check the driving wires
OUt1
IGBT Phase V
Fault
OUt2
IGBT Phase W
Fault
OUt3
Pump Overload
OL1
1. Input voltage is too low
2. Improper setting of pump
motor rated current
3. Motor is locked-rotor
4. The power of inverter and
pump do not match
5. Acceleration is too fast
1. Check the input power supply
2. Set proper rated current of pump
motor
3. Check the load and adjust the torque
lifting capacity
4. Choose power matching motor and
inverter
5 . I n c r e a s e a c c e l e r a t i o n t i m e
Inverter Overload OL2
Program
Defined
Overload Alert
OL3
Improper parameter settings of
overload alert Check parameter settings of overload
alert function
1. Air duct is blocked or cooling
fan is damaged
2. Ambient temperature is too
high
3. Connections or plug-ins in
control board loosen
4. Rectifier module or IGBT is
damaged 1. Clear air duct or replace cooling fan
2. Lower the ambient temperature
3. Check and reconnect
4 . C o n t a c t D a y l i f f f o r h e l p
Rectifier
Module
Overheat
OH1
IGBT Overheat OH2
Input Phase
Loss
SP1
Phase loss of input R, S, T
1. Check the input power supply
2. Check the installation wiring
Output Phase
Loss
SPO
1. Phase loss of output U, V, W
2. Three-phase of pump is
seriously unbalanced
1. Check the output wiring
2. Check the pump motor and cables
bC
Braking Unit
Fault
1. Braking circuit is faulty or
braking pipeline is damaged
2. External braking resistance is
too small
1. Check the braking unit and replace
the braking pipeline
2. Increase braking resistance
CE
485
Communication
1. Improper baud rate setting
2. Communication error in serial
communication
3 . L o n g i n t e r r u p t i o n o f
communication 1. Set proper baud rate
2. Press
STOP/RESET to reset or
contact the manufacturer for help
3. Check the wiring of communication
interface
EEP
EEPROM R/W
Fault
1 . E r r o r o c c u r s w h e n
reading/writing control
parameters
2. EEPROM is damaged 1. Set proper baud rate
2. Press
STOP/RESET to reset or
contact the manufacturer for help
3. Check the wiring of communication
interface