Pilz PSS SB HYD, Basic license - Manual (Page 109)

Modular Block System: Hydraulic Presses 6-47
• ARSt: Automatic restart/reset lock
ARSt = 0:
Reset lock
ARSt = 1: Automatic restart / no reset lock
(see also under “Operating modes”)
• AuSt: Automatic start / start-up disabler
AuST = 0:
Start-up disabler
AuST = 1: Automatic start / no start-up disabler on PSS start-
up; only effective in conjunction with
NFkT = 1
(see also under “Operating modes”)
• NFkT: No function test on the gate
NFkT = 0: Function test required on the gate
NFkT = 1:
Start up without a function test on the gate
(see also under “Operating modes”)
Input circuitry
• Inputs S1 and S2 must use test pulses. These pulses should be entered
in the configurator (DB 002) accordingly.
• Using SB066 for safety gate monitoring:
- Category 2
CAUTION!
This can only be used on safety gates which are regularly opened and
closed as part of the machine cycle.
If you are only using one switch/contact, S1 and S2 will have the same
input address. The switch must close when the safety gate is closed.
If you only use one switch/contact, malfunctions such as a button
plunger sticking or the gate failing to actuate cannot be detected. A
function test must therefore be carried out on the gate as part of each
cycle, i.e. the gate must be opened and closed regularly.
This requirement is met if the reset lock is activated each cycle by a
1/0 pulse edge at the
MRun input (e.g. each time the machine stops),
so that it is only possible to restart the machine after the gate has been
opened and closed.