
41
Eastman
Over a Century of Cutting Expertise
®
Form E-564
Fault
Message/Warning
Cause
Remedy
"F451
n451"
Tamagawa encoder:
battery.
"The external battery voltage is
too low. F451 fault is generated if
the AKD is not powered. The n451
warning is generated if the AKD is
powered. This fault can be inhibited
with FAULT45-1.ACTION."
"It is necessary to check or replace
the external battery."
F452
"Multiturn overflow not
supported with this
feedback."
Non-multiturn feedback is connected
while FB1.PMTSAVEEN is active.
"Connect multiturn feedback to the
drive or disablemultiturn overflow."
F453 to F459
Tamagawa encoder:
communication.
"Bad communication with the
feedback device."
"Cabling or shielding fault or inter-
nalfeedback failure. Check the
cabling to the drive. If the problem
persists then return the feedback
to themanufacturer for repair."
F460
"Tamagawa encoder:
over speed."
"When the drive was powered
off and the feedback was powered by
the external battery, this fault is gen-
erated if the shaft is rotated above a
maximum speed that can be main-
tained when battery powered."
"Reset the fault on the drive with
DRV.CLRFAULTS."
F461
"Tamagawa encoder:
counting Error."
"When the feedback is powered
on the position (within on revolution)
was incorrect because of a problem
with the feedback device."
"Reset the fault on the drive with
DRV.CLRFAULTS, if the problem
persists then return the feedback
to the manufacturer for repair."
F462
Tamagawa encoder:
counting overflow.
Multi-turn counter has overflowed.
"Reset the fault on the drive with
DRV.CLRFAULTS."
F463
"Tamagawa encoder:
overheat."
The temperature of the encoder sub-
strate exceeds overheating detection
temperature during main power-on."
"Reset the fault on the drive with
DRV.CLRFAULTS after temperature
of encoder is lowered."
F464
Tamagawa encoder:
multiturn error.
Any bit-jump occurs in the multi-turn
signal during main power-on.
"Return to the origin. Reset the fault
on the drive with DRV.CLRFAULTS."
F473
"Wake and Shake. In-
sufficient movement"
"There was less movement than
defined by WS.DISTMIN."
"IncreaseWS.IMAX and/orWS.T.
Or try usingWS.MODE 1 or 2."
F475
"Wake and Shake. Ex-
cess movement."
"WS.DISTMAX has been exceeded
inWS.MODE 0. Or more than 360
degrees was traveled inWS.MODE
2."
"IncreaseWS.DISTMAX value or
reduceWS.IMAX orWS.T. Wake
and Shake is not suported for verti-
cal/overhung loads."
F476
"Wake and Shake. Fine-
coarse delta too large."
"The angle difference between
the coarse and fine calculation
was larger than 72 deg."
"Modify WS.IMAX orWS.T and try
again."
"F478
n478"
Wake and Shake. Over-
speed.
WS.VTHRESH was exceeded.
"IncreaseWS.VTHRESH value or
reduceWS.IMAX orWS.T."
"F479
n479"
Wake and Shake. Loop
angle delta too large.
"The angle between complete
loops was larger than 72 deg."
"Modify WS.IMAX orWS.T and try
again."