Interface module

Pilz Automation
Technology has launched
Decentralised Periphery
PDP20 – meeting PLe for
series connected switches.

The new interface module
PDP20 F 4 mag is suitable for
series connection of safety
switches, such as tongue
interlocks or magnetic safety
switches, up to PL e. As such,
it provides a standardcompliant
solution in
accordance with EN ISO
13849-1.

The interface module can
be connected to dual-channel
evaluation devices (such as
the PNOZ safety relays,
PNOZmulti configurable
safety relays, PSS safety
PLCs). Up to 4 switches can
be connected to each PDP20
module. PDP20 interface
modules also offer a high
level of decentralisation due
to the ability to cascade
modules.

Each module features four
dual-channel inputs and two
solid-state safe outputs
(OSSDs), 1 diagnostic solid
state output and 2 test pulsed
outputs. To cascade multiple
PDP20 modules, the OSSDs
of one are fed into one of one
of the dual-channel inputs of
the next PDP20 module.

Costing less than a
standard safety relay, PDP20
interface modules makes a
compact and economical
solution for series
connections, which
ultimately find their way
back to a final safety relay or
other safety controller. Where
the functionality of ‘nesting’
safety guard inputs without
the availability of localised
cabinets to house PDP20
modules is required, Pilz
already offers an IP67-rated
system.