Omron V500-R521B2 User Manual page 10

Introduction
3. Wiring
• Extension length of the RS-232C line (SD, RD, SG) should be up to 15 m.
• For trigger and power line, use a cable with 0.3 mm
should be up to 5 m.
• Wiring should avoid approaching to a high-power heavy electric current wire.
• Check the polarity of terminals and be careful of faulty wiring.
• Avoid reverse connection of power supply or connection to alternating current.
• Turn off the power switch before connecting or disconnecting a connector.
• Use a wrist strap etc. to avoid electrostatic charge when you touch terminals and
signal lines, to avoid damage due to static electricity.
4. Installation
• When using the bar code reader, fix it to the associated mounting bracket.
• When inductive noise is generated at the mounting bracket, attach an associated
insulation board. Use the associated screw to mount the insulation board.
• Incline the bar code reader about 15 ° to read the target bar code.
• Do not apply stress on the cable when mounting and using.
• Distance and angle allowed to read differs according the bar code. Check if the used
bar code can be read actually, before mounting.
5. Timing input with photo-electronic sensor
When taking timing with the photo-electronic sensor, mount the bar code reader so that
the footlight beam of the photo-electronic sensor does not spot directly on the reading
window of the bar code reader or on the bar code.
Footlight beam of the photo-electronic sensor spots
on the reading window of the bar code reader.
6. Influence of reflective objects
When there is any reflective object such as metal or mirror surface on the bar code
beam-scanning surface, reading character may be deteriorate. Cover the reflective
object with something or change the bar code position to avoid influence.
V500-R521B2/C2
8
User's Manual
or more and extension length
2
Bar code
Photo-electronic sensor
Footlight beam of the photo-
electronic sensor spots on the
bar code.