YASKAWA CIMR-VU BA0001 Technical Manual page 285

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
Parameters 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
Parameters 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
There is no signal at terminal H1.
Internally, the Safe Disable channel is broken. Replace the drive.
Digital Operator Display
Cause
One of the Safe Disable channels is faulty.
Digital Operator Display
Cause
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual
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 = 20 to 2F).
• Reconnect the signal line.
• Check if the unused terminals have been set for H1-oo = 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.
Check the sensor and replace it if damaged.
Replace the drive.
Safe Disable Signal Input
Hbb
The Safe Disable Input channel is open.
Check if external safety circuit tripped and disabled the drive. If the Safe Disable function
is not utilized, check if the terminals HC, H1, and H2 are linked.
Safe Disable Signal Input
HbbF
The safe disable input hardware is defective.
Replace the drive.
Current Alarm
HCA
Drive current exceeded overcurrent warning level (150% of the rated current).
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
6.5 Alarm Detection
Minor Fault
(H2-oo = 10)
YES
Minor Fault
(H2-oo = 10)
YES
Minor Fault
(H2-oo = 10)
YES
Minor Fault
(H2-oo = 10)
YES
Minor Fault
(H2-oo = 10)
YES
Minor Fault
(H2-oo = 10)
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