LED Display LCD Display Minor Fault Name
When the drive is powered up for the first
time, the time and date must be set. The HOA
keypad will display the time and date setup
screen for 30 seconds. If a button is not
pressed during this time, the display will clear
and a “Clock Not Set” alarm will flash.
Pressing the F2 (Data) key will display the setting screen again.
LED Display LCD Display Minor Fault Name
cr5t
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 card during fault
reset.
• Turn off the run command.
LED Display LCD Display Minor Fault Name
cyc
CyC
MECHATROLINK Comm. Cycle Setting Error
Comm. Cycle Setting Error was detected.
Cause Possible Solution
The controller is using a comm. cycle beyond
the allowable setting range for the
MECHATROLINK option unit.
Set the comm. cycle for the upper controller within the allowable setting range for the MECHATROLINK
option unit.
LED Display LCD Display Minor Fault Name
dne
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.
LED Display LCD Display Minor Fault Name
e5
E5
MECHATROLINK Watchdog Timer Error
Cause Possible Solution
The watchdog timer expired while waiting for
data from the controller.
Issue a DISCONNECT or ALM_CLR command, followed by a CONNECT or SYNC_SET command
and move to phase 3.
LED Display LCD Display Minor Fault Name
ef
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.
LED Display LCD Display Minor Fault Name
ef0
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.
LED Display LCD Display Minor Fault Name
ef1
EF1
Pump Fault (Input Terminal S1)
External fault at multi-function input terminal S1.
ef2
EF2
Pump fault (input terminal S2)
External fault at multi-function input terminal S2.
6.4 Alarm Detection
270
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
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