YASKAWA V1000 Series Installation & Start-Up Manual page 228

5.6 Alarm Detection
LED Operator Display
Cause
An external device has tripped an
alarm function.
Wiring is incorrect.
Multi-function contact inputs are set
incorrectly.
LED Operator Display
Cause
Parameters settings for b5-36 and b5-
37 are incorrect.
PID feedback wiring is faulty.
Feedback sensor has malfunctioned.
Feedback input circuit is damaged.
LED Operator Display
Cause
Parameters settings for b5-13 and
b5-14 are incorrect.
PID feedback wiring is faulty.
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YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
External fault (input terminal S5)
EF5
External fault at multi-function input terminal S5.
External fault (input terminal S6)
EF6
External fault at multi-function input terminal S6.
External fault (input terminal S7)
EF7
External fault at multi-function input terminal S7.
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-
• Reconnect the signal line.
• Check if the unused terminals have been set for
H1- = 20 to 2F (External Fault).
• Change the terminal settings.
Excessive PID Feedback
FbH
The PID feedback input is higher than the level set in b5-36 for longer than
the time set in b5-37, and b5-12 is set to 1 or 4.
Check parameters b5-36 and b5-37.
Correct the wiring.
Check the sensor and replace it if damaged.
Replace the drive.
PID Feedback Loss
FbL
The PID feedback input is lower than the level set in b5-13 for longer than the
time set in b5-14, and b5-12 is set to 1 or 4.
Check parameters b5-13 and b5-14.
Correct the wiring.
Minor Fault Name
Possible Solutions
= 20 to 2F).
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault
Output
(H2- = 10)
YES
YES
YES
Minor Fault
Output
(H2- = 10)
YES
YES
YES
YES
Minor Fault
Output
(H2- = 10)
YES
YES