Omron EasySpeed 3G3JE, User Manual

Page: 91 / 133

Chapter 4
4-5
Maintenance Operations
e05
Main circuit under-
voltage
The main circuit DC
voltage reached the
undervoltage detec-
tion level (200 V DC)
during Inverter opera-
tion.
Power supply to the Inverter has phase
loss or the power cable is discon-
nected. Check the wiring and check
for loose screws and discon-
nected wires and correct any
problems.
Incorrect power supply voltage Make sure that the power sup-
ply voltage is within specifica-
tions
Momentary power interruption has
occurred. • Use the momentary power
interruption restart (Set P09
to 1 or 2.)
• Improve the power supply
The internal circuitry of the Inverter is
damaged. Replace the Inverter.
e06
Radiation fin over-
heated
The temperature of the
radiation fins of the
Inverter has exceeded
the specified tempera-
ture.
The ambient temperature is too high. Ventilate the Inverter or install
a cooling unit.
The installation space is insufficient. Increase the space around the
Inverter.
The load is too large. • Reduce the load.
• Increase the Inverter capac-
ity.
The acceleration/deceleration time is
too short. Increase the acceleration/
deceleration time.
The ventilation is obstructed. Change the location of the
Inverter to meet the installa-
tion conditions.
The cooling fan of the Inverter does not
work. (The cooling fan's service life has
expired, or the fan is broken.) Replace the cooling fan.
(Applies to Inverters with
fans.)
e07
Cooling fan fault
The cooling fan has
been locked (stopped)
or the rotation speed is
down by 30% or more.
Note: The motor output
will stop if it’s locked or
the speed is down by
50% or more. A fault
will be output if the
speed is down 30% or
more.
The cooling fan wiring has a fault. Turn OFF the Inverter, remove
the Inverter, and check and
repair the wiring.
The cooling fan is not in good condition. Check and remove the for-
eign material or dust on the
fan.
The cooling fan is faulty or beyond its
service life. Replace the fan.
e08
Braking IGBT fault
The brake IGBT is mal-
functioning.
The IGBT is damaged. Turn OFF the Inverter power
immediately, and replace the
Inverter.
e09
Accumulated time
alarm The Inverter's accumulated time has
reached the accumulated operating
time standard (P02) that was set. To cancel the alarm, set the
accumulated operating time
clear parameter (P21) to
ini , or
increase the existing accumu-
lated operating time standard
(P02).
Fault
display
Fault name and
meaning
Probable cause Correction