Code oPE09: PID Control Selection Fault
Issue Description & Safety Warning
The Yaskawa A1000 AC Drive has triggered a critical PID Control Selection Fault alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Code type: Operator programming error Manual section: Yaskawa A1000 Troubleshooting The following simultaneous contradictory settings have occurred: - b5-15 not 0.0 (PID Sleep Function Operation Level) - The stopping method is set to either DC Injection Braking or coast to stop with a timer (b1-03 = 2 or 3). - Set b5-15 to another value besides 0. - Set the stopping method to coast to stop or ramp to stop (b1-03 = 0 or 1). PID control is set to b5-01 = 1 or 2, but the lower limit for the frequency reference (d2-02) is not set to 0 while reverse output is enabled (b5-11 = 1). Correct the parameter settings. PID control is set to b5-01 = 3 or 4, but the lower limit for the frequency reference (d2-01) is not 0. Correct the parameter settings.
Source: Yaskawa AC Drive A1000 High Performance Vector Control Drive Technical Manual (SIEP C710616 21H)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Yaskawa A1000 AC Drive Alarms
Yaskawa controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code oPE09 on the A1000 AC Drive identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Yaskawa's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 280 Yaskawa A1000 AC Drive codes.
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