Yaskawa J1000 Compact V/f Control Drive - Manual (Page 144)

Digital Operator Display Minor Fault Name
Surrounding temperature is too
high
• Check the surrounding temperature.
• Improve the air circulation within the enclosure panel.
• Install a fan or air conditioner to cool surrounding area.
• Remove anything near drive that may cause extra heat.
YES
Internal cooling fan has stopped.
• Replace the cooling fan.
• After replacing the fan, reset the cooling fan maintenance
parameter to (o4-03 = “0”).
Airflow around the drive is
restricted.
• Provide proper installation space around the drive as indicated in
the manual. Refer to on page 30 .
• Allow for the specified space and ensure that there is sufficient
circulation around the control panel.
• Check for dust or foreign materials clogging cooling fan.
• Clear debris caught in the fan that restricts air circulation.
Digital Operator Display Minor Fault Name
oL3
Overtorque 1
Drive output current was greater than L6-02 for longer than the time set in L6-03.
Cause Possible Solution
Minor
Fault
(H2- =
10)
Inappropriate parameter settings. Check parameters L6-02 and L6-03.
YES
There is a fault on the machine side
(e.g., the machine is locked up).
• Check the status of the machine.
• Remove the cause of the fault.
Digital Operator Display Minor Fault Name
ov
DC Bus Overvoltage
The DC bus voltage exceeded the trip point.
For 200 V class: approximately 410 V
For 400 V class: approximately 820 V (740 V when E1-01 < 400)
Cause Possible Solution
Minor
Fault
(H2- =
10)
5.5 Alarm Detection
144 YASKAWA ELECTRIC TOEP C710606 26D YASKAWA AC Drive – J1000 Quick Start Guide