
342
Causes and corrective actions
Operation Panel
Indication
E.PTC
FR-PU04
Fault 14
FR-PU07(-01) PTC activated
Name
PTC thermistor operation
Description
Trips when the motor overheat status is detected for 10s or more by the external PTC thermistor input
connected to the terminal AU.
This fault functions when "63" is set in
Pr. 184 AU terminal function selection
and AU/PTC switchover
switch is set in PTC side. When the initial value (
Pr. 184
= "4") is set, this protective function does not
function.
Check point
· Check the connection between the PTC thermistor switch and thermal relay protector.
· Check the motor for operation under overload.
· Is valid setting ( = 63) selected in
Pr. 184 AU terminal function selection
?
Corrective action
Reduce the load weight.
Operation Panel
Indication
E.OPT
FR-PU04
FR-PU07(-01)
Option Fault
Name
Option fault
Description
· Appears when the AC power supply is connected to the terminal R/L1, S/L2, T/L3 accidentally when
a high power factor converter is connected.
· Appears when the switch for the manufacturer setting of the plug-in option is changed.
· Appears when a communication option is connected while
Pr. 296
= "0 or 100".
Check point
· Check that the AC power supply is not connected to the terminal R/L1, S/L2, T/L3 when a high
power factor converter (FR-HC, MT-HC) or power regeneration common converter (FR-CV) is
connected.
· Check if password lock is activated by setting
Pr. 296
= "0, 100"
Corrective action
· Check the parameter (
Pr. 30
) setting and wiring.
· The inverter may be damaged if the AC power supply is connected to the terminal R/L1, S/L2, T/L3
when a high power factor converter is connected. Please contact your sales representative.
· Return the switch for the manufacturer setting of the plug-in option to the initial status. (Refer to
instruction manual of each option)
· To apply the password lock when installing a communication option, set
Pr.296
≠
"0,100". (Refer to
).
· If the problem still persists after taking the above measure, please contact your sales representative.
...
Specifications differ according to the date assembled.
to check the SERIAL number.
Operation Panel
Indication
E.OP1
E.OP2
FR-PU04
FR-PU07(-01)
Option 1 Fault
Option 2 Fault
Name
Communication option fault
Description
Stops the inverter output when a communication line fault occurs in the communication option.
Check point
· Check for a wrong option function setting and operation.
· Check that the plug-in option is plugged into the connector securely.
· Check for a break in the communication cable.
· Check that the terminating resistor is fitted properly.
Corrective action
· Check the option function setting, etc.
· Connect the plug-in option securely.
· Check the connection of communication cable.
...
Specifications differ according to the date assembled.
to check the SERIAL number.
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