Pilz PSS SB HYD, Basic license - Manual (Page 122)

6-60 Modular Block System: Hydraulic Presses
Standard Function Blocks
• SSeq: The input parameter SSeq establishes the start-up sequence:
- for the PSS start-up in “Guard only” mode ( GdO = 1) -
for changing the operating mode from “Aus” ( OFF = 1) to
“Guard only” ( GdO = 1)
- for 0/1-pulse edge at input parameter RUN in “Guard only”
mode ( GdO = 1)
SSeq = 0: No automatic start-up (start-up disabler)
Function test required: break the protected field,
clear it and then press the reset button (input
parameter
RSET). See section entitled “Function”.
SSeq = 1: No automatic start-up (start-up disabler)
No function test required
Reset required (input parameter
RSET)
In cycle mode (single or double break), the start-up procedure
is established via the input parameter
STyp (see input
parameter STyp).
INFORMATION
SSeq = RLO-0 (M110.00) must be set on presses.
• ARSt: Automatic restart after fault: “Protected field broken”
ARSt = 0:
After fault: “Protected field broken”, no automatic
restart once the protected field is clear
i.e. after the protected field is broken, a reset lock
will become active
ARSt = 1: Automatic restart after fault “Protected field
broken”
i.e. once the protected field is broken and then
cleared, the reset lock is automatically reset.
DANGER!
The reset lock must always be activated on presses. For this
reason you should always set
ARSt = RLO-0 (M 110.00) if
your application does not require access to the protected field
outside the potentially dangerous movement.
ARSt may be
assigned a signal that is always set at a static “0” during the
potentially dangerous movement, and is only set to “1” outside
this movement.
SB068