Digi DC-190 Manuel d'instructions télécharger pdf (Page 40)

Digitronic Digital Cam Switch Unit

Automationsanlagen GmbH CamCon DC190

6.6.2. Measuring offset

Movement - "System" = Rotatory (standard) Movement - "System" = inear

- System: Can be used to select the controlled system: Either rotatory (like packaging

machines, trimmers or eccentric presses) or a linear system like a

positioning unit or a toggle press.

- Offset: The offset is subtracted from the physical actual value, thus giving you the

possibility to shift the zero value.

Note: If the "System" is set to linear and the direction of rotation is set to negative,

the "Offset" value has to be below zero (e.g. -359). See also chapter

"6.6.1.4.1. The Electronic Rotation Direction Switch".

- Start position: Here you can set a start value if your "System" is set to linear. From this

value on the cam values will start.

Hint: You can also use negative values.

- End position: This value changes automatically if the "System" is set to linear and the

"Start position" or the resolution is changed. This value is always the

highest possible programmable cam value and cannot be changed.

Attention: If the start or end value is overrun, the CamCon switches of, displaying an

error message "Pos-Err 3" or "Error: 3".

- Preset value: This value can be used in both the „rotatory“ as well as in the „linear“

condition to set a physical value to a new, preset value by adding an input

(positive edge).

You could e.g. set the preset value to zero to create an external zero signal

which can be used to synchronise a machine.

- Preset input no.: Enter the number of the input that sets the preset value as an actual value

once it’s triggered by a positive edge.

- Pr. value store typ: This option is used to determine whether a saved preset is tolerant against

power failures.

Using the "RAM" – memory loses the preset every time the device is

switched off and on again.

"EEPROM" – saving copies the preset from the RAM into the EEPROM

memory to make it robust against power shortages.

Attention: The EEPROM memory should only be used if the preset is rarely triggered and

absolutely necessary, since the number of writing turns into the EEPROM memory is

limited (to about 100000 cycles). After that, the EEPROM is ultimately damaged and

the CamCon’s programming data is lost.

Note: The Preset Input will be read in in real time from software date 21.5.2002 on.

Therefore it can be synchronised with a machine.

Version from: 19.04.2012 Page: 40

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Digi DC-190 Manuel d'instructions Page 40