3 safety function sto without a safety card, 4function description, 3 control element – Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC User Manual
Page 49
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]
4-17
4.3
Control element
4
Function Description
Fig. 4-6:
Safety function STO
4.3.3.3
Safety function STO without a safety card
Safety function STO without a safety card
4-
][Funktion_STO_ohne_Sicherheitskarte
Activation of the safety function STO on the servo amplifier can be single
or dual-channel.
STO single-channel, without feedback (SIL 2, PL d)
With single-channel activation of the safety function STO, both shut-
down routes are switched through one output on a safety relay or safety
control system.
STO dual-channel, with feedback (SIL CL 3, PL e)
With dual-channel activation, both shutdown routes are switched sepa-
rately. To achieve PL e or SIL CL 3, the safe pulse disabler must be test-
ed periodically to ensure it switches safely, by evaluating the feedback
signal from a safety control system.
`
When a plant is started up.
STO single-channel
Safety function is activated via the input STO1-
ENABLE
Input STO2-ENABLE must be connected to the
input STO1-ENABLE
1/s
U
U
STO
>100 ms
ENABLE
X3A/1
t
t
t
n
X4
STO1-ENABLE
STO2-ENABLE
6
3
PMCprotego D.x
24 V
STO
POWER
3