Rockwell Automation 9VT201-007HTNNN, User Manual, Page: 141 / 224

Troubleshooting 4-11
Publication 9VT-UM001D-EN-P
IR Volts
Range 25
➁
The drive auto tuning default is “Calculate” and the value calculated for IR
Drop Volts is not in the range of acceptable values. This alarm should clear
when all motor nameplate data is properly entered.
Ixo Vlt Rang 28
➁
Motor leakage inductance is out of range.
MaxFreq
Conflict 23
➁
The sum of [Maximum Speed] and [Overspeed Limit] exceeds [Maximum
Freq]. Raise [Maximum Freq] or lower [Maximum Speed]
and/or [Overspeed Limit] so that the sum is less than or equal to
[Maximum Freq].
Motor Type
Cflct 21
➁
Parameter 040 [Motor Type] has been set to 1 “Synchr Reluc” or 2 “Synchr
PM” and one or more DC functions (for example DC Boost, DC Brake, etc.)
have been activated. DC injection functions are incompatible with
synchronous motors and may demagnetize them.
NP Hz
Conflict 22
➁
Fan/pump mode is selected in [Torq Perf Mode] and the ratio of [Motor NP
Hertz] to [Maximum Freq] is greater than 26.
Power Loss 3
➀
Drive has sensed a power line loss.
Prechrg Actv 1
➀
Drive is in the initial DC bus precharge state.
Sleep Config 29
➁
Sleep/Wake configuration error. With [Sleep-Wake Mode] = “Direct,” possible
causes include: drive is stopped and [Wake Level] < [Sleep Level].“Stop=CF,”
“Run,” “Run Forward,” or “Run Reverse.” is not configured in [Digital Inx Sel].
Speed Ref
Cflct 27
➁
[Speed Ref x Sel] or [PI Reference Sel] is set to “Reserved”.
UnderVoltage 2
➀
The bus voltage has dropped below a predetermined value.
VHz Neg
Slope 24
➁
[Torq Perf Mode] = “Custom V/Hz” and the V/Hz slope is negative.
Waking 11
➀
The Wake timer is counting toward a value that will start the drive.
(1)
See page 4-2 for a description of alarm types.
Alarm
No. Ty
p
e
(1
)
Description