Operating Instructions
Chapter
10
CLV 490 Bar Code Scanner
8 009 993/O824/20-12-2004
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-41
Appendix
10.4.4
Electrical installation
Cable cross-section
The connection cables for the power supply must have a cross-section of at least
0.75 mm
2
(approx. 20 AWG).
See also
Chapter 5.4.2 Supply voltage, Page 5-17
Power consumption
The power consumption depends on the variant:
•
Line scanner with heater: typically 75 W and max. 90 W
•
Line scanner with oscillating mirror and heater: typically 75 W and max. 100 W
These values apply to operation without the switching outputs connected.
CDB 420 or CDM 490 Connection Modules
The CDB 420 or CDM 490 Connection Modules are suitable to power the CLV with heater.
An external power supply pack with a higher power output must be used to provide the re-
quired voltage of 24 V DC +20%/–10%. The incomming/outgoing cables must be protec-
ted by corresponding fuses. The optional CMP 490 Power Supply Module is not suitable for
CLVs with heater.
See
Chapter 3.1.3 System requirements for stand-alone configuration, Page 3-2
.
For connecting the CLV with heater to the CDB 420 or CDM 490 see also the
"CDB 420
Connection Module"
Operating Instructions
(order no. 8 010 001, German/English) respec-
tively the
"CDM 490 Connection Module"
Operating Instructions
(order no. 8 010 005, Ger-
man/English).
10.4.5
Outdoor applications
If the CLV with integrated heater is used outdoors, it should be installed in a protective hou-
sing to prevent the front window from being damaged by rain, snow, or dust. The housing
also acts as a wind protector.