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2.3.2.4 Maximum torque
Go to "Maximum Torque" to limit the torque threshold for switch-off at the weld point.
You can limit the torque threshold as follows:
Under "limited" the motor switches off once the value of the motor's torque set
under options has been reached.
Under "unlimited" the motor switches off only after 100% of its torque has been
reached. This function replaces the motor protection circuit breaker.
When you perform long-time tests always set the maximum torque to "limited".
In tests at < 1200 r/min it is best to use the "regulated" mode (with frequency converter
(FC)) as otherwise the torque of the motor will be too high.
2.3.2.5 Unregulated / regulated
Under rotational speed you can select the "unregulated" button (without FC) or the
"regulated" button (with FC) to set the frequency converter control method.
In the "unregulated" mode (without FC) the FC does not supply any frequency and
voltage to the motor.
In this case the motor behaves as if it were connected to power without FC. The motor slip
is not compensated for and it may be necessary to readjust manually as the motor's
rotational speed depends on the load in the ball cup.
In the "regulated" mode (with FC) the FC uses vector control to compensate for load
cases at the motor. Here, the FC increases voltage and power to maintain the rotational
speed.
The "regulated" mode is not suitable to perform weld tests.
You have three options available to set the motor's rotational speed for the FC:
Touch the speedometer in the "Status Window" (also possible during a test run)
In the "measurement" window using the freely settable rotational speed field
In the "measurement" window using the standard rotational speed buttons
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