Allen-Bradley PowerFlex 70 User Manual page 85

Alarm Description
➁
IR Volts Range 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.
➁
MaxFreq Conflict The sum of [Maximum Speed] value 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].
➁
Motor Type Cflct [Motor Type] has been set to "Synchr Reluc" or "Synchr PM" and one or more
of the following exist:
• [Torque Perf Mode] = "Sensrls Vect," "SV Economize" or "Fan/Pmp V/Hz."
• [Flux Up Time] is greater than 0.0 Secs.
• [Speed Mode] is set to "Slip Comp."
• [Autotune] = "Static Tune" or "Rotate Tune."
➁
NP Hz Conflict Fan/pump mode is selected in [Torq Perf Mode] and the ratio of [Motor NP
Hertz] to [Maximum Freq] is greater than 26.
➀
Power Loss Drive has sensed a power line loss.
➀
Prechrg Active Drive is in the initial DC bus precharge state.
➁
Speed Ref Cflct [Speed Ref A Sel], [Speed Ref B Sel] or [PI Reference Sel] is set to
"Reserved".
➀
Start At PowerUp [Start At PowerUp] is enabled. Drive may start at any time within 10 seconds
of drive powerup.
➀
UnderVoltage The bus voltage has dropped below a predetermined value.
➁
VHz Neg Slope Custom V/Hz mode has been selected in [Torq Perf Mode] and the V/Hz slope
is negative.
(1)
See page 4-1 for a description of alarm types.
Table 4.D Alarm Cross Reference
(1)
No. Alarm
1 Precharge Active
2 UnderVoltage
3 Power Loss
4 Start At PowerUp
5 Analog in Loss
6 IntDBRes OvrHeat
8 Drive OL Level 1
(1)
Alarm numbers not listed are reserved for future use.
(1)
No. Alarm
9 Drive OL Level 2
10 Decel Inhibt
17 Dig In ConflictA
18 Dig In ConflictB
19 Dig In ConflictC
20 Bipolar Conflict
21 Motor Type Cflct
Troubleshooting
(1)
No. Alarm
22 NP Hz Conflict
23 MaxFreq Conflict
24 VHz Neg Slope
25 IR Volts Range
26 FluxAmpsRef Rang
27 Speed Ref Cflct
4-9