Festo CAMC-G-S3 Manual page 55

2 Product description of safety module CAMC-G-S3
Error detection
The level of the inputs A and B may deviate from the statuses such in Tab. 2.16 and Tab. 2.17 for a para­
meterisable time ("Discrepancy time", P02.05/...). If the deviation persists for a longer time, then the
error "[57-1] Digital inputs - Signal level error" (discrepancy error) is generated.
The inputs A and B can be monitored using test pulses. The test pulse source is selected using the para­
meter "Source for test pulse" (P02.07/...). If a test pulse is missing or the input logic detects a short
circuit or cross circuit, then the error "[57-0] Self test I/O (internal/external)" is generated.
In cases of error, the logical input LIN_D40 switches to 1 (Safety function requested).
Please note
A detected error is forwarded to the error management using the error signals shown in the
block diagram. The reaction to the error can be set (only warning, STO, SS1, SS2, etc.). In
this case, for further processing, the logical input LIN_D40 assumes the status 1.
The user must ensure that an error (error management) leads to the safe status for the
overall system.
Timing diagrams
Fig. 2.7, Fig. 2.8, Fig. 2.9 and Fig. 2.10 show the corresponding timing diagrams of a two-channel input,
both for equivalent and antivalent parameterisation.
Release Safety Function request – Equivalent (P02.06 = 1)
DIN40A P02.07
DIN40B
Ts < 2.5 ms
LIN_D40
Fig. 2.7 Timing diagram of two-channel equivalent safe input – Start request (DIN40)
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
P02.07
Ts < 2.5 ms
P02.08 = 1
P02.04
RSF
P02.08 = 0
ERROR
P02.05
DISCREPANCY
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