YASKAWA T1000A, Техническое руководство, Страница: 280 / 517

6.4 Fault Detection
280 YASKAWA ELECTRIC SIEP C710616 30B YASKAWA AC Drive T1000A Technical Manual
Digital Operator Display Fault Name
EF1
External Fault (input terminal S1)
External fault at multi-function input terminal S1.
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 Solution
An external device has tripped an alarm function. Remove the cause of the external fault and reset the fault.
Wiring is incorrect.
• Ensure the signal lines have been connected properly to the terminals assigned for external fault detection (H1-
††
= 20 to 2B).
• Reconnect the signal line.
Incorrect setting of multi-function contact inputs.
• Check if the any unused terminals are set for H1-
††
= 20 to 2B (External Fault).
• Change the terminal settings.
Digital Operator Display Fault Name
Err
EEPROM Write Error
Data cannot be written to the EEPROM.
Cause Possible Solution
Noise has corrupted data while writing to the EEPROM.
• Press the button.
• Correct the parameter setting.
• Cycle power to the drive.
Refer to Diagnosing and Resetting Faults on page 303 .
• Replace either the control board or the entire drive. For instructions on replacing the control board, contact Yaskawa or your
nearest sales representative.
Hardware problem.
Replace either the control board or the entire drive. For instructions on replacing the control board, contact Yaskawa or your
nearest sales representative.
Digital Operator Display Fault Name
FAn
Internal Fan Fault
Fan or magnetic contactor failed.
Cause Possible Solution
Internal cooling fan has malfunctioned (models 2A0360,
2A0415, 4A0362).
Cycle power to the drive and see if the fault is still present.
Check if the fan is operating or not.
Verify the cumulative operation time of the fan using monitor U4-03, and the fan maintenance timer in U4-04.
If the cooling fan has passed its expected performance life or is damaged in some way, follow the instructions in this manual to
replace it.
Fault detected in the internal cooling fan or magnetic
contactor to the power supply (models 2A0250 to
2A0415, 4A0165). Cycle power to the drive and see if the fault is still present.
If the fault still occurs, either replace the control circuit board or the entire unit.
For instructions on replacing the power board, contact the Yaskawa sales office directly or your nearest Yaskawa representative.
Digital Operator Display Fault Name
FbH
Excessive PID Feedback
PID feedback input is greater than the level set b5-36 for longer than the time set to b5-37. To enable fault detection, set b5-12 =
2 or 5.
Cause Possible Solution
Parameters are not set appropriately. Check the settings of parameters b5-36 and b5-37.
Wiring for PID feedback is incorrect. Correct the wiring.
There is a problem with the feedback sensor.
• Check the sensor on the control side.
• Replace the sensor if damaged.
Digital Operator Display Fault Name
FbL
PID Feedback Loss
This fault occurs when PID feedback loss detection is programmed to trigger a fault (b5-12 = 2 or 5) and the PID feedback level
is below the detection level set to b5-13 for longer than the time set to b5-14.
Cause Possible Solution
Parameters are not set appropriately. Check the settings of parameters b5-13 and b5-14.
Wiring for PID feedback is incorrect. Correct the wiring.
There is a problem with the feedback sensor. Check the sensor on the controller side. If damaged, replace the sensor.