4.4
Integrating the equipment into the electrical control
Requirements for use
•
The control of the machine can be electrically influenced.
•
The connected controller and all devices responsible for safety comply with the
required performance level and the required category (for example according to
ISO 13849-1).
•
Power is supplied to all electrically connected devices in accordance with SELV/
PELV (IEC 60204-1).
•
All electrically connected devices are supplied from the same power supply.
•
All electrically connected devices use the same earthing method.
Further topics
•
"Electrical installation", page 61
4.4.1
Voltage supply
Prerequisites
•
The power supply unit is able to jumper a brief power failure of 20 ms as specified
in IEC 60204-1.
•
Battery-powered systems must be able to jumper brief power failures of 5 ms.
•
The power supply unit provides safe isolation according to IEC 61140 (SELV/PELV
as per IEC 60204-1).
•
The voltage supply must be provided with a fuse with a rated current of max. 2 A.
Further topics
•
4.4.2
Input signals for monitoring case switching
Overview
The safe multibeam scanner receives the input signals for monitoring case switching
either via a PDO or SRDO.
Prerequisites
•
The safety-related parts of the control which switch the active protective field
provide the same safety level as the safety function. In many cases, this is PL c as
per ISO 13849-1 or SIL 1 as per IEC 62061.
Signals for the monitoring cases
The safe multibeam scanner selects the monitoring case based on the CANopen data
received.
The CANopen data have a size of one byte. Each bit represents a monitoring case.
Table 5: Selecting a monitoring case
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Selected moni‐
toring case
1
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
2
0
0
1
0
0
0
0
0
3
0
0
0
1
0
0
0
0
4
0
0
0
0
1
0
0
0
5
0
0
0
0
0
1
0
0
6
4
PROJECT PLANNING
30
O P E R A T I N G I N S T R U C T I O N S | scanGrid2 CANopen
8025990/2021-03-03 | SICK
Subject to change without notice
