EN-26
Operator Programming Errors (OPE)
An Operator Programming Error (OPE) occurs when two or more parameter related to each other are set inap-
propriate or an individual parameter setting is incorrect. The Inverter does not operate until the parameter set-
ting is set correctly; however, no other alarm or fault outputs will occur. If an OPE occurs, change the related
parameter by checking the cause shown in the table below. When an OPE error is displayed, press the ENTER
key to see U1-34 (OPE Detected). This monitor displays the parameter that is causing the OPE error.
PUF
DC Bus Fuse
Open
The fuse in the main circuit is blown.
Warning:
Never run the Inverter after replacing the DC bus
fuse without checking for shorted components.
• Check the motor and the motor cables for short cir-
cuits or insulation failures (phase-to-phase).
• Replace the inverter after correcting the fault.
RR
DynBrk Transistr
The built-in dynamic braking transistor failed.
• Cycle power to the Inverter.
• Replace the Inverter.
SE1
Sequence Error 1
No output contactor response S1-16 or longer. Check the output contactor.
SE2
Sequence Error 2
The output current at start was below 25% of no-load
current.
Check the output contactor.
SE3
Sequence Error 3
The output current during run was below 25% of no-
load current.
Check the output contactor.
SVE
Zero Servo Fault
The motor position moved during Zero Servo Opera-
tion.
• Increase the torque limit.
• Decrease the load torque.
• Check for signal noise.
UV1
DC Bus Under-
volt
(only in
stop
condi-
tion)
The DC bus voltage is below the under voltage
Detection Level
(L2-05). The default settings are:
200V class: 190 VDC
400 V class: 380 VDC
• Check the input voltage.
• Check the wiring of the input terminals.
• Check the input voltage and the wiring of the input
terminals.
• Extend the settings in
• C1-01/03/05/07
Main Circuit MC Operation Failure
No MC response during Inverter operation.
Replace the Inverter.
UV2
CTL PS Under-
volt
Control Power Supply Undervoltage
Undervoltage of the control circuit while the Inverter
was running.
• Remove all connection to the control terminals and
cycle the power to the Inverter.
• Replace the Inverter.
Display Meaning Corrective Actions
OPE01
kVA Selection
Inverter kVA Setting Error Enter the correct kVA setting in o2-04.
OPE02 Limit
Parameter Setting out of Range
Verify the parameter settings.
Hiperface selected (n8-35=4) and:
• F1-01 is different from 512 or 1024
• F1-21 is set to 2
EnDat selected (n8-35=5) and:
• F1-01 is different from 512 or 2048
• F1-21 is set to 0 or 1
OPE03
Terminal
Multi-function Input Selection Error (H1-01 to H1-05):
• Functions were selected duplicative.
• External Baseblock NO (8) and External Baseblock NC
(9) were selected at the same time.
The Emergency Stop Command NO (15) and NC(17) are
set simultaneously.
Verify the parameter settings in H1-
OPE05
Sequence Select
RUN/Reference Command Selection Error
The Reference Source Selection b1-01 and/or the RUN
Source Selection parameter b1-02 are set to 3 (option
board) but no option board is installed.
• Verify that the board is installed. Remove the power supply
and re-install the option board again
• Recheck the setting of b1-01 and b1-02.
OPE06
PG Opt Missing
Control method selection error/
PG-card missing
Verify the control method selection in parameter A1-02 and/or
the installation of the PG option board.
OPE08
Constant Selection
Function Selection Error Verify the control method and the function.
OPE10
V/f Ptrn Setting
V/f Parameter Setting Error
Check parameters (E1-). A frequency/voltage value may
be set higher than the maximum frequency/voltage.
Display
Displayed as
Meaning Corrective Actions
Alarm Fault
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