Ramp function

The terminal offers a facility for soft starting and stopping. The ramp gradient for starting can be set in register 40 with an accuracy of 10 or 1000 Hz/s (Feature.6). Register 41 performs the same function for stopping. The process data can be modified during transit of the ramp (Status.2), and the terminal then takes the new value as its target frequency.

The internal ramp function increases / lowers the current frequency up to a preset maximum frequency (register 2) with the preset parameters in register 40 / 41.

• The ramp function is activated with FeatureBit.5.
• The ramp base frequency is specified with FeatureBit.6.
• Status.1 is set while a ramp is being followed.

The deactivation of this function causes the release of Control.0. During operation this can also be done by Control.1. The user can change the base frequency quickly during operation with this.

• If Control.0 = 1 (confirmation by Status.0), the values in registers 38/39 are used.
• If Control.0 = 0, the values in registers 36/37 are used.

The input signals T and Z are transferred directly from the terminal to the controller in the status byte (Status.4 / Status.5). The signals are not given any internal pre-processing.