Digital
Operator
Cause Possible Solution
Er-12
Current Detection Error
One of the motor phases is missing: (U/T1, V/T2, W/T3).
Check motor wiring and correct any problems.
The current exceeded the current rating of the drive. • Check motor wiring for a short between motor lines.
• Close any magnetic contactors used between motors.
• Replace the control board or the entire drive. For instructions on
replacing the control board, contact Yaskawa or your nearest
sales representative.
The current is too low.
Er-13
Leakage Inductance Error
Drive was unable to complete tuning for leakage inductance within
300 seconds.
• Check all wiring and correct any mistakes.
• Check the motor rated current value written on the motor
nameplate and enter the correct value to T1-04.
Er-17
Reverse Prohibited Error
Drive is prohibited from rotating the motor in reverse while
attempting to perform Inertia Tuning.
• Inertia Auto-Tuning cannot be performed if the drive is restricted
from rotating in reverse.
• Assuming it is acceptable for the application to rotate in reverse,
set b1-04 to 0 and then perform Inertia Tuning.
u
Fault Reset Methods
When a fault occurs, the cause of the fault must be removed and the drive must be restarted. The table below lists the different
ways to restart the drive.
After the Fault Occurs Procedure
Fix the cause of the fault, restart the drive, and
reset the fault
Press on the digital operator when the error code
is displayed.
LO
RE
F2F1
ESC
RUN STOP
ENTERRESET
RESET
- MODE -
oC
Overcurrent
DRV
FWD
RESET
Resetting via Fault Reset Digital Input S4
Close then open the fault signal digital input via
terminal S4. S4 is set for “Fault Reset” as default
(H1-04 = 14).
Fault Reset Switch
Drive
S4 Fault Reset Digital Input
SC Digital Input Common
Turn off the main power supply if the above methods do not reset the fault. Reapply power after the
digital operator display has turned off.
ON
OFF
2
1
Note:
If the Run command is present, the drive will disregard any attempts to reset the fault. Remove the Run command before attempting to clear
a fault situation.
i.7 Troubleshooting
60
YASKAWA ELECTRIC TOEP YAIP1U 03B YASKAWA AC Drive – P1000 Safety Precautions
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