YASKAWA U1000 iQpump Drive, Техническое руководство

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Digital Operator Display Minor Fault Name
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.
Wiring is incorrect.
• Ensure the signal lines have been connected properly to the terminals assigned for external fault detection
(H1- oo = 2C to 2F).
• Reconnect the signal line.
Multi-function contact inputs are set
incorrectly.
• Check if the unused terminals have been set for H1- oo = 2C to 2F (External Fault).
• Change the terminal settings.
Digital Operator Display Minor Fault Name
FbH
Excessive PID Feedback
The PID feedback input is higher than the level set to b5-36 for longer than the time set to b5-37, and b5-12
is set to 1 or 4.
Cause Possible Solutions
Parameter settings for b5-36 and b5-37 are
incorrect.
Check parameters b5-36 and b5-37.
PID feedback wiring is faulty. Correct the wiring.
Feedback sensor has malfunctioned. Check the sensor and replace it if damaged.
Feedback input circuit is damaged.
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 Minor Fault Name
FbL
PID Feedback Loss
The PID feedback input is lower than the level set to b5-13 for longer than the time set to b5-14.
Cause Possible Solutions
Parameter settings for b5-13 and b5-14 are
incorrect.
Check parameters b5-13 and b5-14.
PID feedback wiring is faulty. Correct the wiring.
Feedback sensor has malfunctioned. Check the sensor and replace it if damaged.
Feedback input circuit is damaged.
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 Minor Fault Name
Fdv
Power Supply Frequency Fault
The input power supply frequency exceeded the allowable frequency fluctuation.
Cause Possible Solution
A momentary power loss occurred. Reset the fault.
An input power supply wiring terminal is
loose.
Check for loose terminals.
The fluctuation in the voltage of the input
power supply is too large.
Increase the Power Supply Frequency Fault Detection Width (L2-27).
The built-in fuse is open.
Replace either the control board or the entire drive. For instructions on replacing the control board, contact
Yaskawa or your nearest sales representative.
The phase rotation direction has changed in
the input power supply.
Correct the wiring.
6.5 Alarm Detection
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual 387
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Troubleshooting