Table of Contents
Advertisement
DOK-CONTRL-S20*PSDI*8*-AP02-EN-P
IndraControl S20 Module With Safe Digital Inputs S20-PSDI-8/4
DBR Automation is Bosch Rexroth Oficial Sales Partner. Interested in products or technical support? www.dbrautomation.com | +34951709474 | comercial@dbrautomation.com
The categories are achieved with the following measures:
Category
Measure
Use proven and basic safety principles according to
EN ISO 13849-2.
Use qualified sensors: see
trolling devices" on page
Please note that mechanical failure of the switching device can
result in the loss of the safety function.
Prevent (e.g., by means of protection, redundancy, positive
opening operation) contacts from failing to open (e.g., due to
welding or mechanical failure) when a switch is actuated.
Please note that a single error can result in the loss of the safety
function between tests.
Make sure that the external wiring is tested by the machine
controller on machine startup and at suitable intervals. This test
must detect the loss of the safety function.
Please take into consideration errors with a common cause.
Please note that all errors that cannot be detected can result in
the loss of the safety function. Take measures to prevent these
errors (e.g., protected cable installation or double insulation).
Observe the notes in the following tables.
Make sure that a single error does not result in the loss of the
safety function.
If single-channel sensors are not available for this category,
use two-channel sensors.
An accumulation of errors must not result in the loss of the
safety function. Following the third error, evaluation can be
aborted if the probability of further errors occurring is low.
Connection examples for safe inputs
"Requirements for sensors/con-
13.
Bosch Rexroth AG
39/102
Cat. 2
Cat. 3
Cat. 4
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Advertisement
Table of Contents
