YASKAWA V1000 Series Installation & Start-Up Manual page 231

LED Operator Display
Cause
Surrounding temperature is too high
Internal cooling fan has stopped.
Airflow around the drive is
restricted.
LED Operator Display
Cause
An external device triggered and
overheat warning in the drive.
LED Operator Display
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Heatsink Overheat
oH
The temperature exceeded the maximum allowable value.
• Check the surrounding temperature.
• Improve the air circulation within the enclosure panel.
• Install a fan or air conditioner to cool the surrounding
area.
• Remove anything near the drive that might be producing
excessive heat.
• Replace the cooling fan.
Replacement on page
• After replacing the drive, reset the cooling fan
maintenance parameter to (o4-03 = "0").
• Provide the proper installation space around the drive as
indicated in the manual.
Spacing on page
• Allow for the specified space and ensure that there is
sufficient circulation around the control panel.
• Check for dust or foreign materials that may have clogged
the cooling fan.
• Clear out debris caught in the fan that restricts air
circulation.
Drive Overheat Warning
oH2
"Drive Overheat Warning" was input to a multi-function input terminal, S1
through S7 (H1-
• Search for the device that tripped the overheat warning.
• Solving the problem will clear the warning.
Motor Overheat
oH3
The motor overheat signal entered to a multi-function analog input terminal
exceeded the alarm level (H3-02 or H13-10 = E).
5.6 Alarm Detection
Minor Fault Name
Possible Solutions
Refer to Cooling Fan
278.
Refer to Correct Installation
40.
Minor Fault Name
= B).
Possible Solutions
Minor Fault Name
Minor Fault
Output
(H2- = 10)
YES
YES
5
YES
YES
Minor Fault
Output
(H2- = 10)
YES
231