EXPERT Standard Series User Manual
95
Phenomena
Occurrence
Conditions
Possible Reasons
Countermeasures
Upper computer’s virtual
terminal function is set
improperly.
Cancel the upper
computer virtual
terminal function or
use the upper
computer to give
proper settings, or
modify the F6.23
settings.
The input terminal
positive/negative logic settings
are improper.
Check the F6.23
settings.
Drive
powers on
and runs
immediately
to report
P.OFF
Thyristor or
contactor
disconnects
and drive load
is too large.
For thyristor or contactor is not
closed, when the drive load is
relatively large, the main loop
DC bus voltage will decrease
during running, and the drive
will display P.OFF first, rather
than the E026 fault.
Run the drive again
after waiting the
thyristor or the
contactor closed
completely.
Note:
(1) Before reset, it is required to check fault reasons completely and carry out
troubleshooting, otherwise it may cause permanent damages to the drive.
(2) If any fault occurs again because of unable to reset or after reset, check
reasons, while continuous resets may damage the drive.
(3) Overload, it is required to delay for 5 minutes to reset during overheat
protection.
