
Wiring
Operating Manual PSEN sg2c
1003267EN02
26
INFORMATION
When the solenoid is operated in singlechannel, only a safety level of PL d
(Cat. 2) / SIL CL 2 can be achieved.
To achieve PL e (Cat. 4)/SIL CL 3, the solenoid must have dualchannel op
eration.
For applications with singlechannel operation of the solenoid (up to PL d/SIL CL 2) a safe
output with 2 A or a momentarily overloadable safe output (1.8 A for 50 ms) can be used.
The device can be switched in series with all safety switches from Pilz. In the connection
example the guard locking of safety switches is activated / deactivated via access request
(X15). The maximum switching current of the solenoid is present only while switching the
solenoids for about 50 ms. The solenoids of the safety switches are switched with a low
time offset of ca. 1 s, to avoid power surges at the evaluation device.