2.2
Example of E-Stop Signal connection using PILZ module
Above you can see an example of E-Stop signal connection to the CSMIO/IP-S controller and to the
axis drives, using Pilz company safety relay (PNOZ X7 24V symbol). S1 is a reset button (switching on
the safety relay), S2 is the emergency stop.
This module has one input, and due to it, all the alarm sources are connected to this input (A1). In
addition to the mentioned emergency stop (S2) there are NC contacts - NC1 and NC2, which may be,
e.g. opening sensors for a cover and a control cabinet. Moreover, there are drives FAULT signals con-
nected in series. Two outputs of the safety relay were used as the E-Stop signal for the CSMIO/IP-S
controller and axis drives.
This combination assures that machine stops in case of failure on any axis (FAULT signals of the
drives), by pressing the emergency stop mushroom and opening the cabinet or the cover. Separation
of output channels of the safety relay gives double protection to a system and significantly increases
reliability of the entire system.
PILZ
PNOZ X7 24 V
C S - L a b s . c . – C S M I O / I P - S - C N C C o n t r o l l e r
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