C-DIAS SAFETY DIGITAL INPUT MODULE
CSDI 162
1.3
Page 25
Practical Example of a Circuit
The following diagram shows the schematic for a processing machine. To implement the
application, the following basic requirements must be met.
Requirements
R1
The installation can only be started manually with the start button S1. For cross-
circuit detection, the start button S1 should have a 2-channel connection.
R2
The signal lamp P1 should turn on immediately after pressing the start button S1.
To activate the signal lamp P1, a safe output can be used.
R3
For the power train control of the processing machine, a Safety output should be
used on the relay K1. The K1 relay should be set 500 ms after pressing the start
button S1.
R4
When the Emergency Stop switch S2 is triggered , the power train control of the
machine must be turned off within 50 msec.
Fig. 8: Simplified representation of the processing machine
