Compax 3

Generally, max tracking error faults are caused by one of three things:

1. Encountering a serious mechanical disturbance or blockage (crash).
2. Gains that are too low for the dynamics being commanded (accel/decel too aggressive).
3. Tracking error limit configured to be too small (e.g. one encoder count).

You can check item 2 by commanding slower, less aggressive motion and seeing if you still get the fault.

For item 3, go into the Configuration Wizard in Compax3 Servo Manager.  Take a look at the Monitoring/Limits configuration to find the allowable tracking error.  A good rule of thumb is to set it to roughly 1/8th of a revolution if you just need a baseline to start testing.  The value you end up using in your application may be tighter if you need a faster fault reaction to protect the machine.

Generally, max tracking error faults are caused by one of three things:

1. Encountering a serious mechanical disturbance or blockage (crash).
2. Gains that are too low for the dynamics being commanded (accel/decel too aggressive).
3. Tracking error limit configured to be too small (e.g. one encoder count).

You can check item 2 by commanding slower, less aggressive motion and seeing if you still get the fault.

For item 3, go into the Configuration Wizard in Compax3 Servo Manager.  Take a look at the Monitoring/Limits configuration to find the allowable tracking error.  A good rule of thumb is to set it to roughly 1/8th of a revolution if you just need a baseline to start testing.  The value you end up using in your application may be tighter if you need a faster fault reaction to protect the machine.