YASKAWA CIMR-DC4A0040AAA Technical Manual page 114

5.4 Alarm Detection
Digital Operator
Minor Fault Name
Display
EF1
(Input Terminal S1)
EF2
(input terminal S2)
EF3
(input terminal S3)
EF4
(input terminal S4)
EF5
(input terminal S5)
EF6
(input terminal S6)
EF7
(input terminal S7)
EF8
(input terminal S8)
Cause
An external device has tripped an alarm
function.
Wiring is incorrect.
Multi-function contact inputs are set
incorrectly.
Digital Operator
Minor Fault Name
Display
Converter Internal
Fan
Circulation Fan Fault
Cause
An internal circulation fan is faulty (2A0130 or
4A0130 to 4A0370).
An internal circulation fan or MC power supply
is faulty (2A0130 or 4A0130 to 4A0370).
Digital Operator
Minor Fault Name
Display
Fdv
Frequency Fault
Cause
A momentary power loss occurred.
An input power supply wiring terminal is loose.
The fluctuation in the voltage of the input
power supply is too large.
The AC power supply fuse is open.
The phase rotation direction has changed in the
input power supply.
The detected power supply frequency exceeded
the allowable value.
114
External Fault
External fault at multi-function input terminal S1.
External fault
External fault at multi-function input terminal S2.
External fault
External fault at multi-function input terminal S3.
External fault
External fault at multi-function input terminal S4.
External fault
External fault at multi-function input terminal S5.
External fault
External fault at multi-function input terminal S6.
External fault
External fault at multi-function input terminal S7.
External fault
External fault at multi-function input terminal S8.
Remove the cause of the external fault and reset the multi-function input value.
Refer to Stopping the Converter for Faults in Peripheral Devices on page 90
• Ensure the signal lines have been connected properly to the terminals assigned for external fault
detection (H1- = 24 to 27, 2C to 2F).
• Reconnect the signal line. Refer to
page 90
• Check if the unused terminals have been set for H1- = 24 to 27, 2C to 2F (External Fault).
• Change the terminal settings. Refer to
on page 90
The internal circulation fan in the converter is faulty.
Cycle the power supply and see if the fault occurs again.
Check the operation of the internal circulation fans.
Check U4-03 (Cooling Fan Operation Time) and U4-04 (Cooling Fan Maintenance Display).
• If the life of the internal circulation fans has expired or if a fan is faulty, perform fan
replacement according to instructions in this manual.
Cycle the power supply and see if the fault occurs again.
• If the fault occurs repeatedly, replace the board or the converter. For information on board
replacement, consult with your Yaskawa representative or the nearest Yaskawa sales office.
Power Supply
The input power supply frequency exceeded the allowable frequency fluctuation.
Investigate and correct the cause and reset the fault.
Refer to Diagnosing and Resetting Faults on page
• A transistor inside the converter was destroyed.
• The input wiring or drive output has ground faulted or short circuited.
Contact your Yaskawa representative or the nearest Yaskawa sales office.
Correct the wiring.
Improve the power supply.
YASKAWA ELECTRIC SIEP C710656 06F YASKAWA Power Regenerative Converter - D1000 Technical Manual
Detail
Possible Solutions
Stopping the Converter for Faults in Peripheral Devices on
for details.
for details.
Detail
Possible Solutions
Detail
Possible Solutions
Stopping the Converter for Faults in Peripheral Devices
121.
Alarm
Output
(H2-=10)
YES
for details.
Alarm
Output
(H2-=10)
YES
Alarm
Output
(H2-=10)
YES