Chapter
3
Technical Information
RFID write/read device RFH630 (HF)
22
©
SICK AG · Germany · All rights reserved · Subject to change without notice
8014957/YSU6/2016-01-08
Electrical installation
3.6.2
Connecting up the supply voltage
The RFH630 requires a power supply unit with the following characteristics:
Supply voltage DC 10 V ... 30 V, SELV in accordance with the currently applicable
EN
60950-1.
The power source must be able to provide at least 6 W output and max. 0.8 A.
Additional 0.5 W output power when using the optional CMC600 parameter memory
module in the CDB620-001 connection module
DANGER
Risk of injury via electrical current!
If the supply voltage is produced by the removal and conversion of electricity from the AC
mains power supply with the aid of a power supply unit, then insufficient electrical separa-
tion between the input and output circuit may lead to an electric shock.
Only use one power supply unit whose output circuit has safe electrical separation from
the input circuit by means of double insulation and a safety transformer in accordance
with IEC 742 (VDE 0551).
Protection of supply cables
To ensure protection against short-circuits/overload in the supply cables from the custom-
er's power system, the conductor cross sections used have to be selected and protected
according to the national standards.
The supply voltage is fed via the connection module (see
Chapter 3.7.2 Wiring the supply
voltage in the CDB620-001, Page 26
).
The CDB620-001 connection module already has one fuse (0.8 A slow blow) in the electrical
circuit downstream of the S1 switch.
Wiring without SICK connection module
The connecting cable no. 6042772 (17-pin M12 female connector and open cable end) can
be used for wiring without the CDB620-001 connection module.
The RFH630 must then be protected using a separate fuse (max. 0.8 A slow blow) in the
supplying circuit at the start of the supply cable viewing from the power supply unit.
