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Troubleshooting
4-5
Decel Inhibit
24
➂
The drive is not following a
commanded deceleration
because it is attempting to limit
bus voltage.
1. Verify input voltage is within drive
specified limits.
2. Verify system ground impedance
follows proper grounding
techniques.
3. Disable bus regulation and/or
add dynamic brake resistor and/
or extend deceleration time.
Drive OverLoad
64
Drive rating of 110% for 1 minute
or 150% for 3 seconds has been
exceeded.
Reduce load or extend Accel Time.
Excessive Load
79
Motor did not come up to speed
in the allotted time during
autotune.
1. Uncouple load from motor.
2. Repeat Autotune.
FluxAmpsRef
Rang
78
The value for flux amps
determined by the Autotune
procedure exceeds the
programmed [Motor NP FLA].
1. Reprogram [Motor NP FLA] with
the correct motor nameplate
value.
2. Repeat Autotune.
Function Loss
2
Function loss input is open.
Check remote wiring.
Ground Fault
13
➀
A current path to earth ground
greater than 25% of drive rating.
Check the motor and external wiring
to the drive output terminals for a
grounded condition.
Heatsink
OvrTemp
8
➀
Heatsink temperature exceeds
100% of [Drive Temp].
1. Verify that maximum ambient
temperature has not been
exceeded.
2. Check fan.
3. Check for excess load.
HW OverCurrent
12
➀
The drive output current has
exceeded the hardware current
limit.
Check programming. Check for
excess load, improper DC boost
setting, DC brake volts set too high
or other causes of excess current.
Incompat
MCB-PB
106
➁
Drive rating information stored on
the power board is incompatible
with the main control board.
Load compatible version files into
drive.
I/O Comm Loss
121
I/O Board lost communications
with the Main Control Board.
Check connector. Check for induced
noise. Replace I/O board or Main
Control Board.
I/O Board Fail
122
Board failure.
Cycle power. If fault repeats, replace
I/O board.
I/O Mismatch
120
Incorrect I/O board identified.
Restore I/O board to original
configuration, or if new configuration
is desired, reset fault.
IR Volts Range
77
“Calculate” is the autotune
default and the value determined
by the autotune procedure for IR
Drop Volts is not in the range of
acceptable values.
Re-enter motor nameplate data.
Motor OverLoad
7
➀
➂
Internal electronic overload trip.
Enable/Disable with [Fault Config
1] on
.
An excessive motor load exists.
Reduce load so drive output current
does not exceed the current set by
[Motor NP FLA].
Fault
No.
Ty
p
e
(1
)
Description
Action
Summary of Contents for 9VT201-007HTNNN
Page 1: ...VTAC 9 AC Drive Firmware Version 3 xx User Manual ...
Page 4: ...soc 2 ...
Page 14: ...P 8 Overview Publication 9VT UM001D EN P Notes ...
Page 56: ...1 42 Installation Wiring Publication 9VT UM001D EN P Notes ...
Page 62: ...2 6 Start Up Publication 9VT UM001D EN P Notes ...
Page 130: ...3 68 Programming and Parameters Publication 9VT UM001D EN P Notes ...
Page 150: ...4 20 Troubleshooting Publication 9VT UM001D EN P Notes ...
Page 176: ...A 26 Supplemental Drive Information Publication 9VT UM001D EN P Notes ...
Page 196: ...B 20 Using the LCD OIM Publication 9VT UM001D EN P Notes ...
Page 212: ...C 16 Application Notes Publication 9VT UM001D EN P Notes ...
Page 223: ......