6
Electrical installation
6.1
Data interfaces
Recommended max. length of cable from the ID sensor to host:
Interface type
Data transmission rate
Distance to host
RS-232
Up to 19.2 kBd
38.4 kBd ... 57.6 kBd
Max. 10 m
Max. 3 m
RS-422
Max. 38.4 kBd
Max. 57.6 kBd
Max. 1,200 m
Max. 500 m
6.2
Supply voltage U
IN
The supply voltage level required depends on the ID sensor to be connected (see also
the specifications on the ID sensor type label):
ID sensor
Supply voltage
CLV61x, CLV62x, Lector620
DC 10 V ... 30 V
CLV63x ... CLV65x without heating
DC 18 V ... 30 V
CLV63x ... CLV65x with heater
DC 24 V ± 10 %
RFH6xx, RFU620-104xx
DC 10 V ... 30 V
RFU620-101xx, down to –25 °C
DC 10 V ... 30 V
RFU620-101xx, at –25 °C ... –35 °C
DC 20 V ... 30 V
6.3
Prerequisites for safe operation of the device
WARNING
Risk of injury and damage caused by electrical current!
As a result of equipotential bonding currents between the device and other grounded
devices in the system, faulty grounding of the device can give rise to the following
dangers and faults:
•
Dangerous voltages are applied to the metal housings.
•
Devices will behave incorrectly or be destroyed.
•
Cable shielding will be damaged by overheating and cause cable fires.
Remedial measures
•
Only skilled electricians should be permitted to carry out work on the electrical
system.
•
If the cable insulation is damaged, disconnect the voltage supply immediately and
have the damage repaired.
•
Ensure that the ground potential is the same at all grounding points.
•
Where local conditions do not meet the requirements for a safe earthing method,
take appropriate measures. For example, ensure low-impedance and current-carry‐
ing equipotential bonding.
The ID sensors (referred to as devices in the rest of this chapter) are each connected
to the peripheral devices (PLC, host, read cycle sensor(s), voltage supply, etc.) via a
connection module with shielded cables. The cable shield, e.g., of the data cable, is
connected to the metal housing of the device and to the terminal strip of the connec‐
tion module. The connection module can be used to ground the device.
ELECTRICAL INSTALLATION
6
8021690/ZZN1/2021-05-07 | SICK
O P E R A T I N G I N S T R U C T I O N S | CDB620
13
Subject to change without notice