Rockwell Automation 1305 AC Drive, Firmware 1.01-3.00 User Manual - Manual (Page 125)

Chapter 6 – Troubleshooting and Fault Information
6-5
Table 6.B Bulletin 1305 Fault Descriptions (cont.)
Fault Name & Number Fault Description Action to Take
Motor Mode FIt
2
Internal error. Reset drive to factory defaults. Motor Mode FIt
F24 Internal error. Reset drive to factory defaults.
Motor Stall Fault
F6 The motor is stalled. If the motor is drawing excessive current, the motor load is
excessive and will not allow the drive to accelerate to set speed.
A longer accel time or a reduced load may be required.
Neg Slope Fault
F35 Drive software detected a portion of the volts/Hz curve with a
negative slope. Check drive programming.
1. [Maximum Voltage] parameter must be greater than or
equal to [Base Voltage].
2. [Base Voltage] parameter must be greater than 1.5 X [Start
Boost].
3. If the [DC Boost Select] parameter is set to ‘‘Break Point,’’
[Base Voltage] must be greater than [Break Voltage] and
[Break Voltage] must be greater than [Start Boost].
4. [Maximum Freq] must be greater than or equal to [Base
Frequency]
Network Error ✳ Network Error 0 – Error 6 ScanPort Error
Network Error 7 – Error 9 Communications Error
1. Press the “Up” or “Down” arrow to clear the message from
the HIM display.
2. Unplug the HIM from the cable or drive and re-connect.
3. Check for external noise sources.