2
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany, Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
2009-01
2.4-3
Two-hand Applications
2.4
PL e of EN ISO 13849-1, SIL 3 of EN 62061
PNOZ s6 - Requirements in accordance with EN 574 Type IIIC, contact expansion through contactors
Safety-related characteristics in
accordance with EN ISO 13849-1
Prerequisites:
Common cause failure (CCF):
Requirements are considered to be met
(must be tested on implementation)
Mission time: 20 years
Operating interval (electromechanical
components):
- Sensor: 60 operations per hour
- Actuator: 60 operations per hour
Characteristic data of pushbuttons S1/S2:
B10d: 20.000.000
Characteristic data of contactors KM1/KM2:
B10d: 2,000,000 (note oversizing)
EN ISO 13849-1
EN ISO 13849-1
EN ISO 13849-1
EN ISO 13849-1
EN ISO 13849-1
Performance Level
Performance Level
Performance Level
Performance Level
Performance Level
Safety-r
Safety-r
Safety-r
Safety-r
Safety-related parts
elated parts
elated parts
elated parts
elated parts
of the contr
of the contr
of the contr
of the contr
of the control system
ol system
ol system
ol system
ol system
Safety function:
Pushbuttons are operated simulta-
PL e
PL e
PL e
PL e
PL e
Sensor (pushbutton S1/S2)
neously with both hands, to keep the
Logic (PNOZ s6)
operator away from the danger zone.
Actuator (contactor KM1, KM2)
Hazardous movement is stopped by
releasing one or both pushbuttons;
reactivation is possible once both
pushbuttons are released.
Further requirements relevant to
two-hand circuits in accordance
with EN 574 Type IIIC.
Please note the further requirements of EN ISO 13849-1, e.g. requirements for avoiding systematic faults.
