Rockwell Automation Allen-Bradley LiquiFlo 2.0 - Common Symptoms and Corrective Actions

212 Rockwell Automation Publication D2-3518-4 - January 2020
Chapter 10 Troubleshooting the Drive
Common Symptoms and
Corrective Actions
Tab le 2 4 through Tabl e 30 describe common symptoms and corrective actions.
Table 24 - Drive Does Not Start From Start, Run, or Jog Inputs Wired to the Terminal Block
Table 25 - Drive Does Not Start or Jog From OIM
Indication(s) Cause(s) Corrective Action
Flashing red Ready LED. Drive is faulted. Clear fault:
• Press OIM stop key. This action only succeeds if the clear faults function for
that OIM is enabled using the Logic Mask (276) and Fault Clr Mask (283).
• Cycle power.
• Set Fault Clear (240) to 1.
• Toggle terminal block stop or terminal block fault reset digital input. This
action only succeeds if the clear faults function for that OIM is enabled using
the Logic Mask (276) and Fault Clr Mask (283).
• Cycle power.
Incorrect operation from the terminal
block.
Incorrect input wiring.
• 2-wire control requires Run, Run Forward, or Run
Reverse input(s).
• 3-wire control requires Start and Stop inputs
• Jumper from terminal 7 to 8 is required.
Wire inputs correctly and/or install jumper.
Incorrect digital input programming.
• Mutually exclusive choices have been made.
• 2-wire and 3-wire programming may be
conflicting.
• Exclusive functions (for example, direction control)
may have multiple inputs configured.
• Stop if factory default and is not wired or is open.
• Start or Run programming may be missing.
Program Digital Inx Sel (361...366) for correct inputs.
The Digital In bit of one or more of the mask
parameters (276...285) is not set.
Set the Digital In bit to 1 in the appropriate mask parameters (276...285). The
Digital In bit of the Logic Mask (276) must be set if any control function is to be
performed from the terminal block.
Flashing yellow Ready LED and DigIn
CflctB indication on OIM.
Drive Status 2 (210) shows type 2
alarm(s).
Incorrect digital input programming.
• Mutually exclusive choices have been made.
• 2-wire and 3-wire programming may be
conflicting.
• Exclusive functions (i.e, direction control) may have
multiple inputs configured.
• Stop if factory default and is not wired or is open.
• Start or Run programming may be missing.
Program Digital Inx Sel (361...366) to resolve conflicts.
Remove multiple selections for the same function.
Install stop button to apply a signal at stop terminal.
Indication Cause(s) Corrective Action
None Drive is programmed for 2-wire control, and the bits
of the Logic Mask (276) and Start Mask (277) that
apply to the OIM are set to 1.
If 2-wire control is required, no action is necessary.
If 3-wire control is required, program Digital Inx Sel (361...366) for correct inputs.
Flashing or steady red Ready LED. Active fault. Reset fault.
Flashing yellow Ready LED. Enable input is open. Close terminal block enable input.
The terminal block stop input is open. Close terminal block stop input.
Start inhibit bits are set. Check status in Start Inhibits (214).