Yaskawa D1000 Series Power Regenerative Converter - Manual (Page 123)

5.4 Alarm Detection
YASKAWA ELECTRIC TOEP C710656 07C YASKAWA Power Regenerative Converter - D1000 Instruction Manual 123
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5
Digital Operator
Display
Minor Fault Name Detail
Alarm
Output
(H2-=10)
EF1
External Fault
(Input Terminal S1)
External fault at multi-function input terminal S1.
YES
EF2
External fault
(input terminal S2)
External fault at multi-function input terminal S2.
EF3
External fault
(input terminal S3)
External fault at multi-function input terminal S3.
EF4
External fault
(input terminal S4)
External fault at multi-function input terminal S4.
EF5
External fault
(input terminal S5)
External fault at multi-function input terminal S5.
EF6
External fault
(input terminal S6)
External fault at multi-function input terminal S6.
EF7
External fault
(input terminal S7)
External fault at multi-function input terminal S7.
EF8
External fault
(input terminal S8)
External fault at multi-function input terminal S8.
Cause Possible Solutions
An external device has tripped an alarm
function. 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 98 for details.
Wiring is incorrect.
• 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 Stopping the Converter for Faults in Peripheral Devices on
page 98 for details.
Multi-function contact inputs are set
incorrectly.
• Check if the unused terminals have been set for H1- = 24 to 27, 2C to 2F (External Fault).
• Change the terminal settings. Refer to
Stopping the Converter for Faults in Peripheral Devices
on page 98 for details.
Digital Operator
Display
Minor Fault Name Detail
Alarm
Output
(H2-=10)
Fan
Converter Internal
Circulation Fan Fault
The internal circulation fan in the converter is faulty. YES
Cause Possible Solutions
An internal circulation fan is faulty (2A0130 or
4A0130 to 4A0370).
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.
An internal circulation fan or MC power supply
is faulty (2A0130 or 4A0130 to 4A0370).
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.
Digital Operator
Display
Minor Fault Name Detail
Alarm
Output
(H2-=10)
Fdv
Power Supply
Frequency Fault
The input power supply frequency exceeded the allowable frequency fluctuation. YES
Cause Possible Solutions
A momentary power loss occurred.
Investigate and correct the cause and reset the fault.
Refer to
Diagnosing and Resetting Faults on page 131 .
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.
• 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.
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