HOA
Keypad
Display
Alarm Name
UL3
Undertorque Detection 1
Drive output current less than L6-02 for longer than L6-03
time.
UL6 Undertorque Detection 6
Uv
Undervoltage
One of the following conditions was true when the drive
was stopped and a Run command was entered:
• DC bus voltage dropped below the level specified in
L2-05.
• Contactor to suppress inrush current in the drive was
opened.
• Low voltage in the control drive input power. This alarm
outputs only if L2-01 is not 0 and DC bus voltage is
under L2-05.
HOA
Keypad
Display
Alarm Name
voF
Output Voltage Detection Fault
There is a problem with the output voltage.
WrUn
Waiting for Run
A Run command has been issued and the drive is waiting
to begin running the motor.
<1> ALM LED will not blink.
u
Programming Errors
n
oPE Codes
A Programming Error (oPE) occurs when a contradictory parameter is set or an individual parameter is set to an inappropriate
value.
The drive will not operate until the parameter or parameters causing the problem are set correctly. An oPE, however, does not
trigger an alarm or fault output. When an oPE appears on the keypad display, press the ENTER button to view U1-18 and see
which parameter is causing the oPE.
Table i.30 Operation Error Displays
HOA
Keypad
Display
Name
oPE01
Drive Capacity Setting Fault
Drive capacity and the value set to o2-04 do not match.
oPE02
Parameter Range Setting Error
Use U1-18 to find parameters set outside the range.
oPE03
Multi-Function Input Selection Error
A contradictory setting is assigned to multi-function
contact inputs H1-01 to H1-07.
oPE05
Run Command/Frequency Reference Source Selection
Error
oPE07
Multi-Function Analog Input Selection Error
A contradictory setting is assigned to multi-function
analog inputs H3-02 or H3-10 and PI functions conflict.
oPE08
Parameter Selection Error
A function has been set that cannot be used in the motor
control method selected.
oPE09
PI Control Selection Error
PI control function selection is incorrect. Requires that PI
control is enabled (b5-01 = 1 or 3).
HOA
Keypad
Display
Name
oPE10
V/f Data Setting Error
One of the following setting errors has occurred:
E1-04 ≥ E1-06
E1-06 ≥ E1-07
E1-07 ≥ E1-09
or E1-09 ≥ E1-11
oPE11
Carrier Frequency Setting Error
Correct the setting for the carrier frequency.
oPE16 Energy Saving Constants Error
oPE27
BP Program Error
Bypass mode is not correctly configured.
oPE28
Sequence Timer Error
One or more of the sequence timers is not set in the correct
order.
oPE29
Baud Rate Setting Error
The baud rate setting (H5-02) is not compatible with the
currently selected protocol (H5-08).
i.6 Troubleshooting
YASKAWA ELECTRIC TOEP C710616 54A YASKAWA AC Drive - Z1000 Quick Start Guide
65
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