Pilz PSS SB HYD, Basic license - Manual (Page 216)

6-154 Modular Block System: Hydraulic Presses
Standard Function Blocks
• Please note:
- With directional control valves (input parameter VTyp = 0), the reaction
time when the valve switches on and off must always be monitored
(see under “Settings for the parameters
TOn and TOff”).
- With poppet valves, the reaction time when the valve switches on and
off may be monitored (see under “Settings for the parameters TOn and
TOff”).
Settings for the parameters TOn and TOff
Poppet valves
I/P Parameter TOff = 0 0< TOff<TOff
max
VTyp = 1
TOn = 0 Reaction time is not Reaction time is monitored
monitored with the valve when the valve switches
switches on or off off
0< TOn<TOn
max
Reaction time is Reaction time is
monitored when the valve monitored when the valve
switches on switches on and off
Directional control valves
I/P Parameter 0< TOff<TOff
max
VTyp = 0
0< TOn<TOn
max
Reaction time is monitored when the valve
switches on and off
Setting reaction times
• Select a low value (e.g. 10 ms)
• Increase the value step by step (max. 10 ms steps), until it is clear that
the valve operates safely and correctly.
This will ensure that reaction times correspond to the actual values of the
valve.
SB089