YASKAWA iQpump1000 Quick Start Manual page 195

HOA Keypad Display
CrST
Cause
Fault reset was being executed when a Run
command was entered.
HOA Keypad Display
dnE
Cause
"Drive Enable" is set to a multi-function
contact input (H1-oo = 6A) and the
contact is open.
HOA Keypad Display
EF
Cause
Sequence error
HOA Keypad Display
EF0
Cause
An external fault was received from the
PLC with F6-03 set to 3, which allows the
drive to continue running after an external
fault occurs.
There is a problem with the PLC program. Check the PLC program and correct problems.
HOA Keypad Display
EF1
EF2
EF3
EF4
EF5
EF6
EF7
EF8
Cause
An external device has tripped an alarm
function.
Wiring is incorrect.
Multi-function contact inputs are set
incorrectly.
YASKAWA TOEP YAIP1W 01A YASKAWA AC Drive - iQpump1000 Quick Start Guide
Cannot Reset
• Ensure that a Run command cannot be entered from the external terminals or option during fault reset.
• Turn off the Run command.
Drive Disabled
Check the operation sequence.
Forward/Reverse Run Command Input Error
Both forward run and reverse run closed simultaneously for longer than 0.5 s.
Check the forward and reverse command sequence and correct the problem.
Note: When minor fault EF detected, motor ramps to stop.
Option Card External Fault
An external fault condition is present.
• Remove the cause of the external fault.
• Remove the external fault input from the PLC.
Pump Fault (Input Terminal S1)
External fault at multi-function input terminal S1.
Pump fault (input terminal S2)
External fault at multi-function input terminal S2.
Pump fault (input terminal S3)
External fault at multi-function input terminal S3.
Pump fault (input terminal S4)
External fault at multi-function input terminal S4.
Pump fault (input terminal S5)
External fault at multi-function input terminal S5.
Pump fault (input terminal S6)
External fault at multi-function input terminal S6.
Pump fault (input terminal S7)
External fault at multi-function input terminal S7.
Pump fault (input terminal S8)
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.
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solutions
5.3 Alarm Detection
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