YASKAWA Z1000U Series Quick Start Manual page 68

i.6 Troubleshooting
HOA Keypad Display
oL3
ov
PASS
SE
SrC
UL3
Uv
WrUn
u
Operator Programming Errors
n oPE Codes
An Operator 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.
HOA Keypad Display
oPE01
oPE02
oPE03
oPE05
oPE07
oPE08
oPE09
oPE10
oPE11
oPE16
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Overtorque Detection 1
The current has exceeded the value set for Torque Detection Level 1 (L6-02) for longer than the allowable time (L6-03).
Control Circuit Overvoltage
Voltage in the control circuit exceeded the trip point.
• For 200 V class drives: approximately 450 V
• For 400 V class drives: approximately 900 V
MEMOBUS/Modbus Comm. Test Mode Complete
MEMOBUS/Modbus Communication Test Mode Error
Note: This alarm will not trigger a multi-function output terminal that is set for alarm output
(H2-oo = 10).
Phase Order Detection Fault
The phase rotation direction for the input power supply changed.
Undertorque Detection 1
The current has fallen below the minimum value set for Torque Detection Level 1 (L6-02) for longer than the allowable
time (L6-03).
Control Circuit Undervoltage
One of the following conditions occurred:
• 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.
Waiting for Run
A Run command has been issued and the drive is waiting to begin running the motor.
Unit Capacity Setting Fault
Unit capacity and the value set to o2-04 do not match.
Parameter Range Setting Error
Use U1-18 to find parameters set outside the range.
Multi-Function Input Selection Error
A contradictory setting is assigned to multi-function contact inputs H1-01 to H1-08.
Run Command/Frequency Reference Source Selection Error
Multi-Function Analog Input Selection Error
A contradictory setting is assigned to multi-function analog inputs H3-02, H3-10, or H3-06 and PID functions conflict.
Parameter Selection Error
A function has been set that cannot be used in the motor control method selected.
PID Control Selection Fault
PID control function selection is incorrect. Requires that PID control is enabled (b5-01 = 1 to 4).
V/f Data Setting Error
One or more of the parameters listed below are not set according to the formula:
• E1-09 ≤ E1-07 < E1-06 ≤ E1-11 ≤ E1-04
• E3-09 ≤ E3-07 < E3-06 ≤ E3-11 ≤ E3-04
Carrier Frequency Setting Error
Correct the setting for the carrier frequency.
Energy Savings Constants Error
Alarm Name
Error Name
YASKAWA ELECTRIC TOEP C710636 11E Z1000U HVAC MATRIX Drive Quick Start Guide