YASKAWA CIMR-JC4A0002BAA Quick Start Manual page 143

5.5 Alarm Detection
EF2
EF3
EF4
EF5
Cause
An external device has tripped
an alarm function.
Wiring is incorrect.
Multi-function contact inputs
are set incorrectly.
LED Operator Display
oH
Cause
Surrounding temperature is
too high
Internal cooling fan has
stopped.
Airflow around the drive is
restricted.
142
External fault (input terminal S2)
External fault at multi-function input terminal S2.
External fault (input terminal S3)
External fault at multi-function input terminal S3.
External fault (input terminal S4)
External fault at multi-function input terminal S4.
External fault (input terminal S5)
External fault at multi-function input terminal S5.
Possible Solutions
Remove the cause of the external fault and reset the
multi-function input value.
• Ensure the signal lines have been connected properly to the
terminals assigned for external fault detection
(H1-oo = 20 to 2F).
• Reconnect the signal line.
• Check if the unused terminals have been set for
H1-oo = 20 to 2F (External Fault).
• Change the terminal settings.
Heatsink Overheat
The temperature of the heatsink exceeded the overheat pre-alarm level.
Possible Solutions
• 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.
• Replace the cooling fan.
on page 171.
• After replacing the drive, reset the cooling fan maintenance
parameter to (o4-03 = "0").
• Provide proper installation space around the drive as indicated
in the manual. Refer to Correct Installation Orientation 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.
YASKAWA ELECTRIC TOEP C710606 26B YASKAWA AC Drive – J1000 Quick Start Guide
http://nicontrols.com
Minor Fault Name
Refer to Cooling Fan Replacement
Minor Fault
Output
(H2-01 = 10)
YES
YES
YES
Minor Fault
Output
(H2-01 = 10)
YES
YES
YES
YES