Tweco iCNC XT User Manual download pdf (Page 76)

iCNC XT

5-18 OPERATION Manual 0-5299

5.6.10 IHS On/Off/Auto Switch

This is a 3 position switch controlling either the IHS or the Floating head, depending on machine options.

INITIAL HEIGHT SENSING SYSTEM

• In Manual position the system activates the IHS output relay.

• In Auto position the iCNC® XT activates the IHS output relay automatically

• In the middle position the IHS output relay is disabled.

FLOATING HEAD SYSTEM

• In Manual position the ﬂ oating head will lower onto the material surface .

• In Auto position the ﬂ oating head will lower automatically as commanded by the controller.

• In the middle (OFF) position the ﬂ oating head will be disabled and stays in the UP position.

NOTE:

Some height controllers use the IHS signal to also activate the plasma. Control ﬂ ow in this case: Height controller senses the

plate, torch rises to ignition height and the height controller ignites the plasma.

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Tweco iCNC XT User Manual Page 76