Delta HES Series Instructions For Use Manual page 95

5-1-2 Error Messages Displayed on Digital Operation Panel
KPVJ-LE01
Display Code
Over current occurs in
acceleration; output current
exceeds by three times the rated
current of the frequency inverter.
Over current occurs in
deceleration; output current
exceeds by three times the rated
current of the frequency inverter.
Over current occurs during
constant speed; output current
exceeds by three times the rated
current of the frequency inverter.
Over current occurs when the
system is at stop. Unusual
hardware circuit by current
detection.
Shorting of top and bottom bridges
in IGBT module are detected by
Hybrid Servo Controller.
Over voltage occurs on the
internal DC high voltage side
detected by Hybrid Servo
Controller during acceleration.
Over voltage occurs on the
internal DC high voltage side
detected by Hybrid Servo
Controller during deceleration.
Description of Anomaly
5-3
Chapter 5 Methods of Anomaly Diagnosis
Troubleshooting
1. Check if the insulation of the wire from
U-V-W to the hybrid servo motor is bad.
2. Check if the hybrid servo motor is stalled.
3. Such errors occur when the red light of PG
card flashes. The causes of these errors
could be loose contact/ disconnection
between encoder, motor drive and motor.
4. When such errors occur at the beginning,
during or at the end of pressure/ flow
command, adjust the pressure/flow reference
time (Pr00-46~ Pr00-49). Adjust also the
ramp up/down rate of pressure/flow
command (Pr00-29 to Pr00-32) from a
controller or the motor drive.
5. When such errors occur while pressure/
flow command is constant, adjust PI value
(Pr00-20 ~ Pr00-25).
6. Make sure if there's any disturbance/
noise, set Pr00-04: #11 (Pressure feedback),
#12(Pressure command), 25 (flow
command). Then observe if the values
fluctuate.
7. Replace with the Hybrid Servo Controller
with larger output capacity.
Send back to manufacturer for repair.
Send back to manufacturer for repair.
230V: DC 415V
460V: DC 830V
1. Check if the input voltage is within the
range of voltage rating of Hybrid Servo
Controller and monitor for any occurrence of
surge voltage.
HES Series