OM4000 Installation Manual
OM4000 Installation Manual
OM4000 INSTALLATION MANUAL
DATALOGIC S.p.A. Via Candini 2 40012 – Lippo di Calderara di Reno Bologna - Italy OM4000 Ed.: 03/2002 ALL RIGHTS RESERVED Datalogic reserves the right to make modifications or improvements without prior notification. Datalogic shall not be liable for technical or editorial errors or omissions contained herein, nor for incidental or consequential damages resulting from the use of this material.
CONTENTS GENERAL VIEW ..........................................................................................iv SAFETY PRECAUTIONS............................................................................. v 1 INTRODUCTION........................................................................................... 1 2 2.1 2.2 2.3 2.4 2.5 2.5.1 2.5.2 2.5.3 INSTALLATION............................................................................................ 2 Mechanical Dimensions ..................
GENERAL VIEW OM4000 1 2 Figure A 1 iv Warning Label 2 Laser Beam Output Window
SAFETY PRECAUTIONS WARNING Once the scanner-oscillating mirror reading system is assembled, the laser beam is emitted from the output window of the OM4000. All the precautions regarding laser exposure must be taken, (details are given in the Installation Manual of the scanner). The following label is applied near the output window of the OM4000.
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INTRODUCTION 1 1 INTRODUCTION The OM4000 oscillating mirror is an accessory for the 4000 series laser scanners: DS41, DS4300, DS4600. It is designed to generate homogeneous and adjustable raster reading through deflection of the scanning laser beam. The system consists of the oscillating mirror attached to the scanner and allows a surface instead of a line to be observed; versatility and reading accuracy are therefore increased in "Picket Fence" reading mode.
OM4000 2 2 INSTALLATION When opening the packaging, verify that the OM4000 oscillating mirror is complete with a set of fixture screws, sealing gasket, accessory cable with connectors, and this installation manual. Check that the output window of the scanner is clean, otherwise clean with soft material and alcohol; all abrasive substances must be absolutely avoided as they cause irreparable damage to the transparency of the glass. 2.1 MECHANICAL DIMENSIONS 58 2.
INSTALLATION 2.2 ASSEMBLY TO THE SCANNER 1) Clean the mirror surface with a clean soft cloth and alcohol before assembling it to the scanner. 2) Loosen all four cover screws on the scanner removing the two cover screws from the scanner on the side closest to the Laser beam output window. See Figure 2. 3) 2 Figure 2 Press the sealing gasket into the seat on the OM4000 body. See Figure 3.
OM4000 2 2.3 ELECTRICAL CONNECTION The OM4000 has a four-wire cable that extends from the compression connector and allows connection to the C-Box of the scanner. To facilitate quick connections for maintenance or replacement, the accessory connection cable with 9-pin female connector and corresponding 9-pin male connector can be wired between the C-Box and the OM4000.
INSTALLATION 2 C-Box Scanner connected to C-Box Scanner with OM4000 accessory 9-pin connector soldered to OM4000 cable accessory cable with 9-pin connector wired to C-Box System cables Figure 7 - Electrical connection to C-Box using accessory cable 2.4 READING FEATURES The reading features of the 4000 series scanner with the OM4000 decrease in typical conditions due to the optical signal passing through the output window of the OM4000 and the reflection on the mirror surface.
OM4000 2 2.5 ADJUSTMENT The OM4000 can be configured to operate in different modes by setting hardware switches located inside the oscillating mirror body. See the figure below. To access these switches you must remove the four cover screws shown in the figure below. Figure 9 - Opening the OM4000 body for configuration The following operating modes can be configured: • Oscillating - mirror always oscillating (see par. 2.5.1). • Triggered - mirror stopped after reading phase off (see par. 2.5.2).
INSTALLATION 2 ERROR LED (red) TRIGGER LED (yellow) TRIGGERED MODE OSCILLATING MODE MIN POSITION FREQUENCY MAX POSITION Figure 10 - Configuration switches The raster width of the OM4000 is adjustable between +20° and -20° with reference to center 0° (see Figure 8). The raster width is factory set to 24° (from +12° to -12°). The oscillation frequency of the OM4000 mirror can be set between 0.5 and 20 Hz. The oscillating frequency is factory set to 10 Hz.
OM4000 2 2.5.1 Oscillating Mode In Oscillating mode, the mirror is in continuous movement between the Min and Max position settings. It requires only the power inputs VS and GND to be connected. To use the OM4000 in this mode: 1. Set the MODE switch to Oscillating (default setting). 2. Set the Frequency switch to 0 (setup). The mirror will toggle between the Min and Max positions aiding the configuration. 3. Set the Max Position switch to the correct value for your application. 4.
INSTALLATION 2 The Min Position value must be less than the Max Position (2 switch positions). The aperture limits in the following table also apply. NOTE Hz 0.5 0.6 0.75 0.85 1 1.5 2 2.5 3 4 5 7 10 14 20 Max. Aperture Extreme Angle Positions 40° + 20° - 20° 30° 24° 18° + 18° - 18° By limiting the raster width to the minimum necessary, the number of scans on the reading surface is increased.
OM4000 2 2.5.2 Triggered Mode With this operating mode the oscillating mirror movement is stopped after the reading phase OFF signal (EXT TRIG becomes inactive) plus a fixed 5.3-second timeout. In low-throughput applications or applications with scheduled operating cycles, it is possible to extend the life of the oscillating mirror by limiting operation and therefore mechanical wear, to the specific time that barcodes are present in the reading area.
INSTALLATION 2 The Min Position value must be less than the Max Position (2 switch positions). The aperture limits in the following also apply. NOTE Hz 0.5 0.6 0.75 0.85 1 1.5 2 2.5 3 4 5 7 10 14 20 Max. Aperture Extreme Angle Positions 40° + 20° - 20° 30° 24° 18° + 18° - 18° This mode is further signaled by the yellow Trigger LED. The LED is on when oscillation is stopped. The LED is OFF when the mirror is oscillating.
OM4000 2 2.5.3 Fixed Mode Fixed mode allows you to position the laser beam at any angle between +20° and -20° with respect to the mounting position of the scanner. To use the OM4000 in this mode: 1. Set the Min Position switch to 0. 2. Set the Max Position switch to the correct value for your application between 1F. (the laser will move to the value aiding the configuration) The MODE and FREQUENCY switch settings are indifferent.
MAINTENANCE AND TROUBLESHOOTING 3 3 MAINTENANCE AND TROUBLESHOOTING OM4000 has no user replaceable components and, apart from periodically cleaning the output window, no particular maintenance is necessary; dust and dirt on the surface may alter the reading performance of the system. Clean the window with soft material and alcohol, absolutely avoiding all abrasive substances. Do not remain in the laser beam output zone during these procedures.
OM4000 4 4 TECHNICAL FEATURES ELECTRICAL CHARACTERISTICS Operating voltage Input current max Power consumption max Raster width Oscillation frequency 10 to 30 Vdc 250 mA @ 10 Vdc 3 W @ 30 Vdc user adjustable from 0° to 40° (for further details see paragraph 2.5) user adjustable from 0.5 Hz to 20 Hz (for further details see paragraph 2.5) READING FEATURES See paragraph 2.4, Appendix A, and the scanner Installation manual ENVIRONMENTAL FEATURES Operating temperature Storage temperature Max.
READING DIAGRAM A A READING DIAGRAMS A.1 EXAMPLE READING DIAGRAM The following reading diagram is given as an example of performance that can be obtained in optimal conditions using a high grade printed barcode. It demonstrates the reading field in the case where the extreme ends of oscillation are set for ± 20° or ± 12°. You should verify your application specific reading conditions taking into account the factors listed in par. 2.
