YASKAWA A1000 HHP Programming Manual page 206

2.5 Alarm Detection
Digital Operator Display
Cause
An external device has tripped an alarm
function.
Wiring is incorrect.
Multi-function contact inputs are set
incorrectly.
Digital Operator Display
Cause
Parameter settings for b5-36 and b5-37 are
incorrect.
PID feedback wiring is faulty.
Feedback sensor has malfunctioned.
Feedback input circuit is damaged.
Digital Operator Display
Cause
Parameter settings for b5-13 and b5-14 are
incorrect.
PID feedback wiring is faulty.
Feedback sensor has malfunctioned.
Feedback input circuit is damaged.
Digital Operator Display
Cause
206
External Fault (Input Terminal S1)
EF1
External fault at multi-function input terminal S1.
External fault (input terminal S2)
EF2
External fault at multi-function input terminal S2.
External fault (input terminal S3)
EF3
External fault at multi-function input terminal S3.
External fault (input terminal S4)
EF4
External fault at multi-function input terminal S4.
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.
External fault (input terminal S8)
EF8
External fault at multi-function input terminal S8.
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-oo = 2C to 2F).
• Reconnect the signal line.
• Check if the unused terminals have been set for H1-oo = 2C to 2F (External Fault).
• Change the terminal settings.
Excessive PID Feedback
FbH
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.
Check parameters b5-36 and b5-37.
Correct the wiring.
Check the sensor and replace it if damaged.
Replace either the control board or the entire drive. For instructions on replacing the control board, contact
Yaskawa or your nearest sales representative.
PID Feedback Loss
FbL
The PID feedback input is lower than the level set to b5-13 for longer than the time set to b5-14.
Check parameters b5-13 and b5-14.
Correct the wiring.
Check the sensor and replace it if damaged.
Replace either the control board or the entire drive. For instructions on replacing the control board, contact
Yaskawa or your nearest sales representative.
Safe Disable Signal Input
Hbb
Both Safe Disable Input channels are open.
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault Name
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Possible Solutions