OMRON Sysdrive 3G3HV - Detector Cooling Section

Data
display
cpf1
Description
Digital Operator
transmission error (CPF1)
Cause and action
The Digital Operator is not connected to the Inverter
properly.
A transmission error lasting → Reconnect the Digital Operator to the Inverter.
longer than 2 s occurred after
The CPU of the Inverter is broken.
transmission with the Digital
Operator started.
→ Replace the Inverter.
cpf4 EEPROM fault (CPF4) → Turn power supply to the Inverter OFF and ON.
→ If this problem persists, replace the Inverter.
cpf5 A/D converter fault (OPF5) → Turn power supply to the Inverter OFF and ON.
→ If this problem persists, replace the Inverter.
Note Stopping methods can be selected for the errors with asterisk marks.
Warnings
• When a warning status arises, the Inverter will not generate an error
contact output. Eliminating the cause will recover the system automatically.
• If a warning status arises, refer to the following and take the necessary
action.
Warnings and Actions Taken
Data
display
ef
flashing
uU
flashing
%U
flashing
%h1
flashing
Description
Forward and reverse
rotation commands input
simultaneously
The forward and reverse
rotation commands were input
simultaneously for 0.5 s or
more.
Main circuit undervoltage
(UV)
The DC voltage of the main
circuit dropped to or below the
undervoltage detection level.
Main circuit overvoltage
(OV)
The DC voltage of the main
circuit exceeded the
overvoltage detection level
while the Inverter had no
output.
Heat sink overheat (OH1)
The temperature of the heat
sink exceeded approximately
90°C and n034 was set to 3
for the continuous operation of
the Inverter.
Cause and action
→ Review the sequence used for the forward and
reverse rotation commands.
→ Check whether the voltage of power supply to the
Inverter is proper. If not, impose the proper voltage.
→ Check whether the power input line to the Inverter is
broken or disconnected. If the power input line is
broken or disconnected, replace the power input line
or connect the power input line properly.
→ Check the terminal block screws for looseness. If they
are loose, tighten them securely.
→ Check whether the voltage of power supply to the
Inverter is proper. If not, impose proper voltage.
The ambient temperature is too high.
→ Install a cooling fan or air conditioner.
A heat generating object exists near the Inverter.
→ Remove the object.