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Full speed advance and retract is relatively slow. |
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A large velocity command is required to overcome carriage friction and move the carriage from a stopped state. |
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The motor brake is a major source of problems because it must resist back drive forces of the loaded tire when engaged and then fully release to allow the carriage to move. |
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Making a small jog movement is difficult due to
1) delay encountered when releasing the brake
2) large velocity setpoint required to "start" motion
This is especially noticeable when trying to
make a small load change with a Dynamic
Calibrator. |
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When the load tolerance is small, an unload/reload cycle is often the only option if the load is not achieved on the initial move. |
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