Pilz PSENvip RL D P Bedienungsanleitung PDF herunterladen (Seite 58)

4.7 System cycle

4 Function description

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Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]

4-30

4.7System cycle4700System cycle4-Funktion_Systemablauf_Muting

This section illustrates the interdependencies of the parameters on the

press brake, PSENvip and safety system during a press stroke. The fol-

lowing parameters are illustrated:

 Status: Describes the cycle status. The upward movement of the

press is assumed as a safe movement.

 Foot switch: Start/stop press stroke

 System-Init: Press brake is at top dead centre

 OSSD: Output signal switching devices of the PSENvip

 Protected field: Free, interrupted

 Mute 1/2: signals whether dynamic muting is activated or deactivat-

ed.

Mute 1/2 are reset to "1" when the protected field is completely ac-

tivated and the advance measuring field is free.

A protected field that has already been partly deactivated can be

completely reactivated by

– side intervention

– the signal System-Init = 1

 Dynamic muting:

– reset: advance measuring field touches pinch point on the work-

piece

– End: Tool centre point reaches the 6 mm point

Fig. 4-17: Definitions

Legend:

 TDC top dead centre

 6 mm: 6 mm point, end of dynamic muting

 PP: Pinch point

 BDC bottom dead centre

 v = 0 mm/s closing speed at top/bottom dead centre

 v > 0 mm/s downward movement

TDC

6 mm

BDC

v = 0

v > 0

v < 0

v = 0

6 mm

Mute 1/2

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 138 139

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