Yaskawa iQpump Micro - Manual (Page 183)

Digital Operator Display Minor Fault Name
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.
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 = 20 to 2F).
• Reconnect the signal line.
Multi-function contact inputs are set
incorrectly.
• Check if the unused terminals have been set for H1-oo = 20 to 2F (External Fault).
• Change the terminal settings.
Digital Operator Display Minor Fault Name
EoF Emergency Override Forward Run
Cause Possible Solution
The multi-function digital input for
EmergOverrideFWD (H1-oo = AF) has
been closed.
Open H1-oo = AF if the emergency condition is no longer present
Digital Operator Display Minor Fault Name
Eor Emergency Override Reverse Run
Cause Possible Solution
The multi-function digital input for
EmergOverrideREV (H1-oo = B0) has
been closed.
Open H1-oo = B0 if the emergency condition is no longer present
Digital Operator Display Minor Fault Name
E5
SI-T3 Watchdog Timer Error
The watchdog timed out.
Cause Possible Solution
Data has not been received from the PLC Execute DISCONNECT or ALM_CLR, then issue a CONNECT command or SYNC_SET command and
proceed to phase 3. Refer to the SI-T3 Option Technical Manual for more details on troubleshooting.
Digital Operator Display Minor Fault Name
FAn Internal Cooling Fan Error
Cause Possible Solution
Internal cooling fan has malfunctioned
• Cycle power to the drive.
• Check for fan operation.
• If the problem continues, replace the fan.
Digital Operator Display Minor Fault Name
Hbb
Safe Disable Signal Input
The Safe Disable Input channel is open.
Cause Possible Solutions
There is no signal at terminal H1.
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.
Internally, the Safe Disable channel is
broken.
Replace the drive.
5.3 Alarm Detection
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual 183
5
Troubleshooting