6
Electrical installation
6.1
Important notes
DANGER
Danger from electrical voltage.
Danger posed by the machine starting up unexpectedly.
•
Disconnect the power for the entire system/machine.
•
Prevent the system from starting unexpectedly while you are connecting the
devices!
WARNING
Risk of injury and damage caused by electrical current!
Due to equipotential bonding currents, incorrect earthing can lead to the following dan‐
gers and faults: Voltage is applied to the metal housing, cable fires due to cable shields
heating up, the product and other devices become damaged.
■
Generate the same ground potential at all grounding points.
NOTICE
Device damage due to improper supply voltage!
■
Only operate the device with the specified supply voltage.
■
The voltage supply and all connected signals must meet the requirements for
extra-low voltages with safe separation (SELV, PELV) as specified in EN 60664 and
EN 50178 (Electronic equipment for use in power installations).
•
Carry out the electrical installation work in conformity with EN 60204-1.
•
The external voltage supply for the devices must be capable of bridging short-term
power outages of 20 ms as specified in EN 60204-1, for example.
•
Make sure the device and the voltage supplies are all connected to the same
ground.
•
Connect the shielding of all data lines (Ethernet, CAN, serial) directly to the func‐
tional earth (FE) at the control cabinet entry point.
NOTE
Layout of data cables
■
Use screened data cables with twisted-pair wires.
■
Implement the screening design correctly and completely.
■
To avoid interference, e.g. from switching power supplies, motors, clocked drives,
and contactors, always use cables and layouts that are suitable for EMC.
■
Do not lay cables over long distances in parallel with power supply cables and
motor cables in cable channels.
EMC measures
Electromagnetic influences can interfere with signal transmissions and interrupt com‐
munications. To minimize electromagnetic influences, it is necessary to implement the
following measures:
•
Connect the mounting rail to functional earth (FE).
•
Ensure sufficient equipotential bonding of the connection points for the shielding.
Ensure compliance with the applicable standards and directives.
6
ELECTRICAL INSTALLATION
16
O P E R A T I N G I N S T R U C T I O N S | SIM1000 FXA
8023299//2019-03-13 | SICK
Subject to change without notice
