Pilz PSS SB HYD, Basic license - Manual (Page 156)

6-94 Modular Block System: Hydraulic Presses
Standard Function Blocks SB072
INFORMATION
Important additional information on the use of sensors and contacts can
be found under “Safety guidelines” at the end of this SB description.
Switch conditions in sequential mode
“Muting ON”
Smd2 = 0: Muting signals MS1 and MS2 must be operated consecutively.
MS1 must then be released while MS2 remains operated.
The time between the operation of MS1 and MS2 must be at
least the length of one PSS cycle.
The time between the operation of MS1 and the release of
MS1 (while MS2 is operated) must be less than the value set
at input parameter
TS12.
The timer monitoring this time (input parameter TS12) is
started by the 0/1-pulse edge at input parameter MS1.
Smd2 = 1: Muting signals MS1 and MS2 must be operated consecutively.
The time between the operation of MS1 and MS2 must be at
least the length of one PSS cycle and less than the value set
at input paramter
TS12.
The timer monitoring this time (input parameter TS12) is
started by the 0/1-pulse edge at input parameter MS1.
Muting “OFF”
The suspension of the safety function is lifted as soon as:
- the ESPE/AOPD is released and
- the set interrupt time (input parameter
TInt) has elapsed
(the interrupt time is started when the ESPE/AOPD is released) or
- the ESPE/AOPD is released and
there are no more muting signals (i.e. MP1/MP2).
Muting “Start-Up”
MS2 or MP1 (or MP2, if present) must be operated if a vehicle is within the
range of the ESPE/AOPD.