Sunfar V560 Series User Manual

Warning, Alarm Diagnosis And Counter Measures 199
V560 Series High Performance Closed-Loop Vector Inverter User Manual
8.1.2 WARNING DISPLAY AND TROUBLESHOOTING
Display Warnings
Can be shielded
or not
Solutions other than shielding
aL.003
Over high power supply
voltage
Inspect input power supply
aL.008
Lower input voltage (under
voltage early warning)
Inspect input power supply
aL.011
Bad electromagnetic
environment
Improve working environment or seek for
manufacturer’s support
aL.012
The load is overweight and
protection maybe occurred
Reduce load, or replace a frequency inverter with
larger power
aL.014 INV overheating early warning Improve ventilation conditions and reduce carrier
aL.018 Overlarge DEV
1. Reduce load
2. Prolong acceleration and deceleration time
3. Confirm mechanical system of load
4. Confirm the detection value ([F8.2.34]) and
time ([F8.2.35]) for DEV
aL.019 Over speed (OS)
1. Adjust frequency setting loop
2. Inspect the setting value of detection value
[F8.2.36]) and time ([F8.2.37]) for OS
aL.026
aL.027
aL.028
The output current of U phase
is deficient/smaller
The output current of V phase
is deficient/smaller
The output current of W phase
is deficient/smaller
Can be shielded
Inspect the connecting wire between frequency
inverter and motor or the winding of motor
aL.031
The starting enabling signal is
deficient
1. Inspect the enabling connection (42) in
multifunctional input terminal and the status of
the terminal (ON/OFF)
2. Inspect whether the starting enabling signal in
bus command word is effective or not
aL.032
Early warning of unbalanced
three-phase input voltage
Can be shielded
Measure the input voltage of all the phases, install
ACR and reduce imbalance rate among phases
aL.036
aL.037
aL.038
AI1 input is disconnected
AI2 input is disconnected
AI3 input is disconnected
Can be shielded
1. Inspect the connection of analog input signal
2. Inspect whether there’re signals in the signal
source
aL.039
Fin input is disconnected
(retained)
Can be shielded
aL.040
The rotating speed detecting
loop is disconnected
Can be shielded
1. Inspect the connection of speed measuring
module
2. Seek for manufacturer’s support
aL.041
No-load operation fails to
identify the parameters of
motor

Sunfar V560 Series Specifications

General

Brand	Sunfar
Model	V560 Series
Category	Inverter
Language	English