8
Rev.01 | CERTUS Multifunction Safety Module | © 2017 |
CARLO GAVAZZI Automation
EN
5. Function description
Function description
Release Outputs (Safety)
A
The release circuits are provided by the outputs
O1,O2,O3,O4
B
Their correct functionality is permanently monitored
Trigger Inputs
A
The trigger outputs are provided by the outputs S11
S21
B
Their correct functionality is permanently monitored
Failure
A
A faulty device must be exchanged immediately,
means the machine must never be driven by a
faulty device
B
The Mean Time To Repair is assumed to be 8 hours
C
The error code shown should be reported
D
A list of error codes is shown in
paragraph 14.3
Safe Condition
A
CERTUS switches into safe condition when an error
occurs repeatedly (software filter)
B
All release outputs (NOs AND NCs) and the trigger
outputs are LOW
C
The safe condition can only be reversed by a power-
on- reset (switch CERTUS off and on)
Fail-Safe
A
In case of a Fail-Safe all outputs (S11, S21,
O1,O2,O3,O4) are switched off
Software
A
In a fail safe mode, the software remains in a special
state which can only be reverse by a power-on reset
B
A blinkcode indicating the error condition is given
on the LED CHANNEL. The LED POWER will also be
blinking
(see paragraph 14.2)
4. Functional block diagram
Power
Start
Input
A2
S12 S22 S11 S21
S35
S36
A1
01
02
03
04
MCU1
Controller1
MCU2
Controller2
Safety
Output
circuit
Содержание Certus CL20D2A
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