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STO Errors
LED Operator
Display
The wrong motor code has been set (Yaskawa
motors only).
STO
Load is too heavy.
Load inertia is too heavy.
Acceleration and deceleration times are
too short.
YASKAWA Europe TOEP C710606 101A - V1000 MMD IP65 Motor Mounted Drive - Quick Start Guide
Cause
7 Troubleshooting
Corrective Action
• Enter the correct motor code for the PM being
used into E5-01.
• For special purpose motors, enter the correct data
provided for the motor into E5- parameters
according to the test report provided for the mon-
itor.
• Increase the value set to n8-55 (Load Inertia for
PM).
• Increase the value set to n8-51 (Pull-in Current
during Accel/Decel for PM.
• Reduce the load.
• Increase the motor or drive capacity.
Increase n8-55 (Load Inertia for PM).
• Increase the acceleration and deceleration times
(C1-01 through C1-08).
• Increase the S-curve acceleration and decelera-
tion times (C2-01).
EN 47
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