You 'gotta be more specific than that.

Anyone ever have nagging problems with 1606XL power supplies from Allen Bradley. Not sure if it's my application, or if these are problematic.

Here is the listing of Weg CFW-09 faults. This list is really helpful for CFW09 troubleshooting and there are brief explanations for the faults included. When a fault is detected, the inverter is disabled and the Fault Code is
displayed on the readout in the EXX form, where XX is the actual fault number, for example: E01.

To restart the inverter after a fault has occurred, the inverter must be reset. You can reset the drive by: disconnecting and reapplying AC power (which is power-on reset), by pressing the key (manual reset), automatic reset through P206 (auto-reset setting), by digital input: DIx = 12 (P265 to P270 also found in settings), by Serial interface, or by Fieldbus interface. Here is the list of CFW09 alarms / faults:

• E00 Output Overcurrent :: Causes: Short-circuit between two motor phases, Short-circuit between braking resistor cables, When the output current reaches 2 x P295, caused by: very high
  DIx (Digital Input) load inertia, acceleration ramp too fast or incorrect regulation and / or configuration parameters, Transistor module shorted, or P169 to P172 set too high
  
  
• E01 Overvoltage (Ud) :: Causes: Power Supply voltage too high, check Ud in P004: 220-230 V Models - Ud > 400 V, 380-480 V Models - Ud > 800 V, 500-600 V and 500-690 V Models with power supply between
  500 V and 600 V - Ud > 1000 V, 500-690 V models with power supply between 660 V and 690 V and 660-690 V models - Ud > 1200 V, Load inertia too high or deceleration ramp too short, or P151 or P153 set too high
  
  
• E02 Undervoltage (Ud) :: Causes: Power Supply voltage too low, DC Link check Ud in P004: 220-230 V power supply - Ud < 223 V, 380 V power supply - Ud < 385 V, 400-415 V power supply - Ud < 405 V, 440-460 V power supply - Ud < 446 V, 480 V power supply - Ud < 487 V, 500-525 V power supply - Ud < 532 V, 550-575 V power supply - Ud < 582 V, 600 V power supply - Ud < 608 V, 660-690 V power supply - Ud < 699 V, Phase loss at the input, Auxiliary circuit fuse blown (only valid for 105 A and 130 A/220-230 V, 86 A to 600 A/380-480 V and 44 A to 79 A/500-600 V refer to item 3.2.3), Pre-charge contactor defective, P296 set to a voltage higher than the power supply voltage
  
  
• E03 Input Undervoltage / Phase loss :: Causes: Power Supply voltage is too low, check Power Supply voltage: 220-230 V Models - Power Supply < 154 V, 380-480 V Models - Power Supply < 266 V, 500-600 V and 500-690 V Models - Power Supply < 361 V, 660-690 V Models - Power Supply < 462 V, Phase loss at the inverter input, Activation Time: 2.0 s
  
  
• E04 Inverter Overtemperature or Pre-Charge Circuit Defective :: Causes: Ambient temperature too high (> 40 degree C) and/or output current too high; or ambient temperature < -10 degree C, Blowers locked or defective, Auxiliary circuit fuse blown (only valid for 105 A and 130 A/220-230 V, 86 A to 600 A/380-480 V and 44 A to 79 A/500-600 V refer to item 3.2.3), Problem with the supply voltage - voltage sag or interruption (phase loss) - last for more than 2 seconds and with the phase loss detection disabled (P214 = 0), Signal with inverted Polarity at Analog inputs AI1/AI2
  
  
• E05 Inverter Motor / Overload (i x t function) :: Causes: P156, P157 and P158 set too low for the motor being used, Motor is under an actual overload condition
  
  
• E06 External Fault :: Causes: Any DIx (DI3 to DI7) programmed for external fault detection (P265 to P270 set to 4 – No Ext Flt) is open (not connected to + 24 V), Terminal block XC12 on the control board CC9 is not properly connected
  
  
• E07 Encoder Fault :: Causes: Miswiring between encoder and terminal block XC9 (optional board Encoder Fault EBA/EBB/EBC/EBE). Refer to item 8.2, Encoder is defective
  
  
• E08 CPU Error :: Causes: Electrical noise
  
  
• E09 Program Memory Error (Checksum) :: Causes: Memory with corrupted values
  
  
• E10 Error in the Copy Function :: Causes: A bid to copy the HMI parameters to the inverter with different Software Version
  
  
• E11 Ground Fault :: Causes: Short-circuit between one or more output phases and ground, Motor cable capacitance to ground is too high
  
  
• E12 Braking Resistor Overload  :: Causes: Load inertia too high or deceleration ramp too short, Load on the motor shaft too high, P154 and P155 programmed incorrectly
  
  
• E13 Incorrect Encoder Sense of Direction :: Causes: Cables U, V, W to motor are inverted, Encoder channels A and B are inverted, Encoder mounted in wrong position. Quick Note: This fault will only occur during self-tuning
  
  
• E15 Motor Phase Loss :: Causes: Bad contact or broken wiring between motor and inverter, Incorrect value programmed in P401, Vector Control without orientation, Vector Control with encoder, encoder wiring or connection to motor is inverted
  
  
• E17 Overspeed Fault :: Causes: When the effective overspeed exceeds the value of P134+P132 longer than 20ms
  
  
• E24 Programming Error :: Causes: Incompatible parameters were programmed.
  
  
• E31 Keypad (HMI) Connection Fault :: Causes: Keypad cable misconnected, Electrical noise in the installation (electromagnetic interference)
  
  
• E32 Motor Overtemperature :: Causes: Motor is under an actual overload condition, Duty cycle is too high (too many starts/stops per minute), Ambient temperature is too high, Motor thermistor miswiring or short-circuit (resistance < 100 ?) at the terminals XC4:2 and XC4:3 of the optional board EBA or at the terminals XC5:2 and XC5:3 of the optional board EBB, P270 programmed to 16 unintentionally, with EBA/EBB board not installed and/or motor thermistor not connected, Motor in locked rotor condition
  
  
• E33 Speed Without Control :: Causes: Overweight, Brake Failure
  
  
• E34 Long Period at Torque Limit :: Causes: The load was too heavy and the CFW-09 operated at torque limitation, for a period longer than allowed, Failure on the brake opening caused the CFW-09 to operate at torque limitation for a period longer than allowed
  
  
• E41 Self Diagnosis Fault  :: Causes: Memory error or any internal inverter circuit defective
  
  
• E70 Internal DC Supply Undervoltage :: Causes: Phase loss at the R or S input, Auxiliary circuit fuse blown (only valid for 500-690 V and 660-690 V models - refer to figures 3.7 f) and g))
  
  
• E71 Watchdog Error for the PLC Board :: Causes: When the PLC board stops communicating with the CFW-09 for more than 200 ms
  
  

Good info, I thought it was worth bumping.

Good work on the thermocouple tests...

Nice job with the resolver testing. These are black boxes to a lot of people who just swap parts.