Toshiba H7 Operation Manuals page 189

EOI
Function
Display
Autotuning Error
ETN
ASD Typeform
ETYP
Error
INIT Parameter is
Under
Initialization
MOFF Main Circuit
Undervoltage
182
Description
This fault is caused by
Autotune readings that are
significantly inconsistent
with the configuration
information.
This fault occurs when the
firmware information
(typeform) loaded into the
Gate Driver board is
inconsistent with the device
in which the firmware is
being used.
This display provides an
indication that a user-
selected parameter is being
initialized.
This fault is caused by an
undervoltage condition at
the 3-phase AC input to the
ASD.
Possible Causes
• A non-3-phase motor is
being used.
• Incorrect settings at F400,
F413, or F414.
• Using a motor that has a
significantly smaller rating
than the ASD.
• ASD output cabling is too
small, too long, or is being
housed in a cable tray with
other cables that are
producing an interfering
EMF.
• Motor is running during the
Autotune function.
• The Gate Driver board has
been replaced.
• The Gate Driver board is
defective.
• The user accesses a
parameter during the
initialization of the selected
parameter.
• Low input voltage.
Corrective Action
• Confirm that the possible
causes listed above are
not the cause for the error.
• Check the nameplated
information on the motor
and ensure that the ASD
configuration is correct.
• Record the Vector Motor
Model settings before
performing the Autotune
and then perform the
Autotune. Upon
completion, press Escape
to exit the Autotune
screen and allow for a
screen refresh. Return to
the Vector Motor Model
settings and ensure that
the values have changed.
If the values have not
changed, then the
Autotune function was
aborted uncompleted
because of one (or more)
of the aforementioned
reasons.
• Make a service call if the
failure persists.
• See Program ⇒ Utility
Parameters ⇒ Versions
and confirm that the
correct device type
appears in the first field.
• Replace the Gate Driver
board and ensure that the
new board has been
programmed with the
correct typeform
information.
• If the utility line voltage
is within acceptable
limits, make a service
call.
H7 ASD Operation Manual