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Chapter
5
Operating Instructions
CLV490 Bar Code Scanner
5-16
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8009993/RA61/2007-07-20
Electrical installation
5.4
Preparations for electrical installation
5.4.1
Requirements for the host interface
The host interface of the CLV490 can be operated as an RS 422/485 or an RS 232 inter-
shows the recommended maximum cable lengths as a function of the se-
lected data transfer rate.
¾
To prevent interference, do not lay the cables parallel with power supply and motor
cables over long distances, e. g. in cable ducts.
5.4.2
Supply voltage
The CLV490 requires a supply voltage of 18 to 30 V DC for operation without a heater and
24 V DC +20 %/–10 % for operation with a heater (functional extra-low voltage in accor-
dance with IEC 364-4-41). The functional extra-low voltage can be generated by using a
safety transformer pursuant to IEC 742.
The power consumption of the individual types is as follows:
Via the CDB420 or CDM490 Connection Module the CLV490 without heater is supplied
with 18 to 30 V DC, the CLV490 with heater is supplied with 24 V DC +20 %/
−
10 %.
If the CMP 490 Power Supply Module in the CDM490 is used for the CLV490 without heat-
er, the input voltage is 100 to 250 V AC/50 to 60 Hz.
Power-up delay
The selected device number (default: 1) affects the power-up delay of the device. This is
useful if a large number of CLV490 (e. g. in the SICK CAN Scanner Network) are to be sup-
plied from one power source.
contains a list of the available intervals.
Interface type
Transfer rate
Distance from host
RS 232
Up to 19,200 bd
38,400 to 57,600 bd
Max. 10 m (32.8 ft)
Max. 3 m (9.84 ft)
RS 422/485
1)
Max. 38,400 bd
Max. 57,600 bd
Max. 1,200 m (3,936 ft)
Max. 500 m (1,640 ft)
1) with suitable line termination according to specifications
Table 5-19: Maximum cable lengths between the CLV490 and host
Type Voltage
Scanning
method
Heater
Power consumption
1)
Connection
module
CLV490-0010/-2010/-6010
CLV490-1010/-3010/-7010
18 to 30 V DC
18 to 30 V DC
Line scanner
Line scanner with
oscillating mirror
No
No
11 W (typ.)/max. 16 W
13 W (typ.)/max. 18 W
CDB420 or
CDM490
CLV490-0011/-2011/-6011
CLV490-1011/-3011/-7011
24 V DC
+20 %/–10 %
Line scanner
Line scanner with
oscillating mirror
Yes
Yes
75 W (typ.)/max. 90 W
75 W (typ.)/max. 100 W
CDB420 or
CDM490
1) switching outputs not connected
Table 5-20: Power consumption of the CLV490
Device number GN
Power-up delay
Device number GN
Power-up delay
1; 11; 21; 31
0 ms
6; 16; 26
2,000 ms
2; 12; 22
400 ms
7; 17; 27
2,400 ms
3; 13; 23
800 ms
8; 18; 28
2,800 ms
4; 14; 24
1,200 ms
9; 19; 29
3,200 ms
5; 15; 25
1,600 ms
10; 20; 30
3,600 ms
Table 5-21: Power-up delay as a function of the device number GN
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