: Press the RESET key on the digital operator once the physical cause is addressed.
Disclaimer: Always refer to your specific Yaskawa drive’s technical manual before making parameter changes. Improper adjustments can lead to equipment damage or personal injury.
The proportional (P) and integral (I) gains for speed and position loops are critical. Gains that are too high cause oscillation and overshoot. Gains that are too low cause sluggish response but can also lead to latch detection faults if the drive tries to compensate aggressively.
Isolate the main input power (L1, L2, L3) and wait for the drive's display to go completely blank (allowing internal capacitors to discharge).
This is a specific safety-related status that occurs when the drive’s hardware-based safety circuit is interrupted. Below is a detailed breakdown of the error, its causes, and how to resolve it. Understanding the H66 (Hbb) Fault
Go into the motor setup parameters (T1, E1, E2). Compare the motor nameplate values with stored parameters.
: Turn on the Overvoltage Stall Prevention parameter ( L3-04 ).
Focus on the parameters that define the behavior of your multi-function output terminals. Use your keypad or software to carefully examine the following settings:
Electromagnetic interference (EMI), electrical noise, or a sudden power interruption during a write cycle has corrupted the application memory.
The is a common configuration mismatch error that manifests as oPE13 (Pulse Train Monitor Selection Error) on the keypad of several prominent variable frequency drive (VFD) families, including the Yaskawa V1000 , Yaskawa A1000 , and Yaskawa GA700 . It highlights a logic conflict between the expected pulse train scaling input and the actual target application selection assigned to the control terminals.