Pilz PSENvip RL D P Manual do Utilizador descarregar pdf (Página 60)

4.7 System cycle

4 Function Description

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4.7System cycle4700System cycle4-Funktion_Systemablauf

This section illustrates the interdependencies of the parameters on the

press brake, PSENvip and programmable safety system during a press

stroke. The following parameters are illustrated:

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

press is assumed as a safe movement.

 OSSD: Output signal switching devices of the PSENvip

The initiation of muting is a function of the programmable safety sys-

tem.

The OSSDs are not evaluated during states 4 and 5.

 Creep speed mode: Signal that indicates creep speed mode to the

programmable safety system

 Protected field: Free, interrupted

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

 Foot switch: Start/stop press stroke

 Closing speed v

Fig. 4-16: Definitions

Key:

 TDC top dead centre

 SG creep speed signal

 BDC bottom dead centre

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

 v > 10 mm/s closing speed in rapid traverse

 v ≤10 mm/s closing speed in rapid traverse

TDC

BDC

v = 0

v > 10 mm/s

v £ 10 mm/s

v = 0

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 156 157

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Pilz PSENvip RL D P Manual do Utilizador Página 60