Rockwell Automation Specific Start Inhibits
The following table defines a list of standard start inhibits associated with the
Start Inhibits
attribute.Bit | Inhibit Condition | Description |
|---|---|---|
0 | -- Reserved -- | No fault condition is present. |
1 | Volts Hertz Curve Definition | Conflict exists in the V/Hz curve definition. |
2 | Motor Feedback Required | Cannot run using the selected motor control mode with Primary Feedback or Alternate Feedback set as open loop. |
3 | Speed Limit Configuration | Speed Ref Limit Conflict, either Minimum Forward Speed Limit exceeds Maximum Forward Speed Limit, or Minimum Reverse Speed Limit exceeds Maximum Reverse Speed Limit. |
4 | Torque Prove Configuration | When Torque Prove Configuration is enabled, Control Mode, Feedback Mode, Motor Feedback Type and Motor Option Configuration must be properly set. |
5 | Safe Torque Off | The safety function has disabled the power structure. |
6 | Safety Reset Required | The safety reset input needs to be toggled before the safety board will allow motion again. |
7 | Safety Not Configured | The embedded safety function of the drive has not been configured. |
8 | Stop Command Active | There is an active Stop Command present. For example, the Stop button on the drive is behind held active. This inhibit condition prevents the drive from starting when the Stop Command is active. |
9 | Feedback Device Reset | The feedback device is being reset. A feedback device reset process is typically performed after a Feedback Loss condition. This inhibit condition prevents the drive from Starting until the feedback reset process is completed. |
10 | Brake Malfunction | The start inhibit is set when the Auto Sag function is enabled, and the brake slip is detected based on motor movement exceeding the configured Brake Slip Tolerance while the mechanical brake is engaged. This typically indicates that the mechanical brake may not be capable of holding the load. |
11 | AC Line Contactor Input | The start inhibit is set when state of the AC Line Contactor OK digital input differs from the state of Contactor Enable Digital Output. When this start inhibit is set it generally indicates that AC Line Contactor is not working correctly and is not capable of charging the dc bus. This start inhibit is checked only when a digital input is configured for the AC Line Contactor OK function. |
12 | Track Section Not Enabled | This start inhibit is set on a track cart or mover axis when the track section axes associated with the current position of this cart or mover are not in the Running state and therefore cannot apply force to this cart or mover.. |
13 | Track Mover Motor Mismatch | There is a track-wide mismatch in mover motor configuration. |
14-15 | --Reserved-- |
This table maps the Start Inhibit bits with their
Logix Designer
Start Inhibit tag names. Start Inhibit bit names always end with an Inhibit suffix.Bit | Tag |
0 | - |
1 | VoltsHertzCurveDefinitionInhibit |
2 | MotorFeedbackRequiredInhibit |
3 | SpeedLimitConfigurationInhibit |
4 | TorqueProveConfigurationInhibit |
5 | SafeTorqueOffInhibit |
6 | SafetyResetRequiredInhibit |
7 | SafetyNotConfiguredInhibit |
8 | StopCommandActiveInhibit |
9 | FeedbackDeviceResetInhibit |
10 | BrakeMalfunctionInhibit |
11 | ACLineContactorInputInhibit |
12 | TrackSectionNotEnabledInhibit |
13 | TrackMoverMotorMismatchInhibit |
Provide Feedback