YASKAWA iQpump1000, Quick Start Manual

Page: 195 / 356

HOA Keypad Display Minor Fault Name
CrST Cannot Reset
Cause Possible Solution
Fault reset was being executed when a Run
command was entered.
• Ensure that a Run command cannot be entered from the external terminals or option during fault reset.
• Turn off the Run command.
HOA Keypad Display Minor Fault Name
dnE Drive Disabled
Cause Possible Solution
“Drive Enable” is set to a multi-function
contact input (H1- oo = 6A) and the
contact is open.
Check the operation sequence.
HOA Keypad Display Minor Fault Name
EF
Forward/Reverse Run Command Input Error
Both forward run and reverse run closed simultaneously for longer than 0.5 s.
Cause Possible Solution
Sequence error
Check the forward and reverse command sequence and correct the problem.
Note: When minor fault EF detected, motor ramps to stop.
HOA Keypad Display Minor Fault Name
EF0
Option Card External Fault
An external fault condition is present.
Cause Possible Solution
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.
• Remove the cause of the external fault.
• Remove the external fault input from the PLC.
There is a problem with the PLC program. Check the PLC program and correct problems.
HOA Keypad Display Minor Fault Name
EF1
Pump Fault (Input Terminal S1)
External fault at multi-function input terminal S1.
EF2
Pump fault (input terminal S2)
External fault at multi-function input terminal S2.
EF3
Pump fault (input terminal S3)
External fault at multi-function input terminal S3.
EF4
Pump fault (input terminal S4)
External fault at multi-function input terminal S4.
EF5
Pump fault (input terminal S5)
External fault at multi-function input terminal S5.
EF6
Pump fault (input terminal S6)
External fault at multi-function input terminal S6.
EF7
Pump fault (input terminal S7)
External fault at multi-function input terminal S7.
EF8 Pump 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.
5.3 Alarm Detection
YASKAWA TOEP YAIP1W 01A YASKAWA AC Drive - iQpump1000 Quick Start Guide 195
5
Troubleshooting