NOTE
Required input voltage on connection module
The connection cable from the connection module to the device, and to a lesser extent
the connection module itself, cause a voltage drop in the supply circuit. The magnitude
of the voltage drop in the connection cable depends on the length of cable.
When operating the device at the lower end of the supply range (18VDC), the sum of
these voltage losses needs to be compensated for.
►
To do so, apply a higher input voltage to the connection module as per the
following table.
The voltage drops for a customer-specific connection or connection module have also
been taken into account.
Table 11: RFU630/650: Required supply voltage V
S
Supply voltage V
S
for device
Connection mod‐
ules
Part no. Cable (length) Wire cross-sec‐
tion supply
voltage V
S
Voltage drop
across the cable
at DC 18V/I =
max. 1.35A
Required mini‐
mum supply volt‐
age V
S
to the con‐
nection module
Fuse protection
value for supply
voltage V
S
18V ... 30VDC
1)
P = max. 26W
CDB650-204 6052286 (2m)
6051194 (3m)
6051195 (5m)
0.14mm
2
0.14mm
2
0.14mm
2
1.0V
1.5V
2.3V
DC 19.0V
DC 19.5V
DC 20.3V
CDB650-204
(2A)
CDM420-0006 2056184 (0.35m)
2049764 (0.9m)
2055419 (2m)
2055420 (3m)
2055859 (5m)
2061480 (2m)
2061605 (3m)
2061481 (5m)
0.10mm
2
0.10mm
2
0.10mm
2
0.10mm
2
0.10mm
2
0.14mm
2
0.14mm
2
0.14mm
2
0.2V
0.5V
1.0V
1.5V
2.5V
1.0V
1.5V
2.3V
DC 18.2V
DC 18.5V
DC 19.0V
DC 19.5V
DC 20.5V
DC 19.0V
DC 19.5V
DC 20.3V
CDM420-0006
(2A)
Customer-specific
wiring
6042772 (3m)
6042773 (5m)
6048817 (10m)
2070425 (3m)
2070426 (5m)
2070427 (10m)
6045141 (5m)
6048319 (10m)
0.14mm
2
0.14mm
2
0.14mm
2
0.14mm
2
0.14mm
2
0.14mm
2
0.14mm
2
0.25mm
2
1.5V
2.3V
4.6V
1.5V
2.3V
4.6V
2.3V
2.0V
DC 19.5V
DC 20.3V
DC 22.6V
DC 19.5V
DC 20.3V
DC 22.6V
DC 20.3V
DC 20.0V
2A at the start of
the cable
12V ... 30V DC
2)
P = max. 26W
6048319 (10m) 0.25mm
2
3.0V at
DC 12V/1.9A
DC 15.0V 2.5A at the start
of the cable
1)
When operating the device via the optional SICK CDB650-204 or CDM420-0006 connection module and using a SICK connecting cable.
When operating the device below 0 °C and using a cold-resistant connecting cable from SICK.
2)
When operating the device without a SICK connection module and using a SICK connecting cable. When operating the device below 0°C,
use the cold-resistant supply cable from SICK, part no. 6048319 (2 x 0.25mm
2
, 10m).
•
The power source must be able to deliver at least 26W of power or at least 1.5A
at 18V DC.
NOTE
The voltage supply via a power supply unit must be capable of buffering a brief power
failure of 20ms.
•
In the case of connection via the optional CDB/CDM connection module: Addition‐
ally required output power 0.5W when using the optional CMC600 parameter
cloning module in the connection module.
6 ELECTRICAL INSTALLATION
52
O P E R A T I N G I N S T R U C T I O N S | RFU63x 8027750//2022-12-15 | SICK
Subject to change without notice