User manual

Detailed descriptions of I/O modules | Safe feed-in modules UR20-PF-O-xDI-SIL
220 1432790000/03/02.2014Manual u-remote
6.27 Safefeed-inmodulesUR20-PF-O-xDI-SIL
Safefeed-inmoduleUR20-PF-O-1DI-SIL
Safefeed-inmoduleUR20-PF-O-2DI-DELAY-SIL
The u-remote safe feed-in modules PF-O-xDI-SIL are intended PF-O-xDI-SIL are intended are intended
for connecting safety-related equipment. The PF-O-xDI-SIL PF-O-xDI-SIL
modules are controlled with non-solid-state safety encoders
and or safety encoders with OSSD inputs. The safety func-
tion consists of the safe interruption of 24V outputs, the
safe status of which is “24V disconnected” (current path for
outputs and the OSSD output is disconnected).
Each PF-O-xDI-SIL module safely disconnects the subsequent PF-O-xDI-SIL module safely disconnects the subsequent module safely disconnects the subsequent
UR20 output modules; in each case, the safety segment
upto the next following PF-O power-feed module. A safety-
oriented input circuit together with pulsed outputs serve for
detecting broken wires and short circuits.
Three types of PF-O-xDI-SIL modules are available in the PF-O-xDI-SIL modules are available in the modules are available in the
u-remote system:
– UR20-PF-O-1DI-SIL (Order No. 1335030000): one safe
input
– UR20-PF-O-2DI-SIL (Order No. 1335050000): two safe
inputs
– UR20-PF-O-2DI-DELAY-SIL (Order No. 1335040000): two
safe inputs, delayed disconnection possible
With PF-O-xDI-SIL modules, it is possible to implement the PF-O-xDI-SIL modules, it is possible to implement the modules, it is possible to implement the
following safety functions:
– Up to two 2-channel safety circuits (AND linked), e.g. for
emergency shutdown buttons, safety door contacts and
safety light grids
– A range of output modules within a u-remote station is
supplied with safe power through the switched +24V
OSSD output.
– PF-O-xDI-SIL modules can be cascaded. modules can be cascaded.
In contrast to other power-feed modules the PF-O-xDI-SIL
modules are active modules. Therefore up to three passive
modules can be arranged directly behind.
All product-specic information and notes
on the use of PF-O-xDI-SIL modules can be PF-O-xDI-SIL modules can be modules can be
found in the Modules for functional safety
manual.
The manual can be downloaded from the Wei-
dmüller website.
.