Nutfield Technology USC-1 Bedienungsanleitung
91-0015-F SURFBOARD USER MANUAL Page 2
Contents
SURFBOARD USB USERS MANUAL........................................................................................1
Nutfield Technology, Inc. .......................................................................................................1
Introduction........................................................................................................................... 4
Version History ................................................................................................................... 4
Safety.................................................................................................................................. 5
Overview ............................................................................................................................ 5
Position Within The System ................................................................................................6
Features.............................................................................................................................. 6
Board And Connectors ........................................................................................................... 7
USB ..................................................................................................................................... 8
Power, Laser, OptoI/O, RS232............................................................................................. 9
Power .............................................................................................................................. 9
Laser .............................................................................................................................. 10
Opto I/O......................................................................................................................... 13
RS232............................................................................................................................. 14
XY2-100 Interface ............................................................................................................. 14
LED Indicators ................................................................................................................... 14
Installation........................................................................................................................... 15
Marking On The Fly.............................................................................................................. 15
Overview .......................................................................................................................... 15
Encoder Signals................................................................................................................. 16
Principle Of Working......................................................................................................... 16
Connecting The Encoder Signals ....................................................................................... 17
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Configuring USC-1.......................................................................................................... 17
Pin Connection............................................................................................................... 18
Software Settings........................................................................................................... 19
First Steps / Getting Started................................................................................................. 20
Hardware Installation ....................................................................................................... 20
Installation........................................................................................................................ 21
sc_usc_server.exe............................................................................................................. 22
Visible Mode.................................................................................................................. 23
Test................................................................................................................................ 24
Reconnect...................................................................................................................... 24
sc_usc.cfg ...................................................................................................................... 25
sc_usc_card_ids.txt........................................................................................................ 25
MultiCard....................................................................................................................... 26
sc_setup.exe ..................................................................................................................... 27
HardwareSettings .......................................................................................................... 27
Diagnostics .................................................................................................................... 30
Appendix.............................................................................................................................. 31
USC-1 Dimensions............................................................................................................. 31
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Introduction
Figure 1.1: USC-1 USB Scanner Controller V1.2
Version History
Date
Changes
10.01.2008 Chapter Marking On The Fly and chapter Appendix added
26.02.2008
Note concerning the AEB-1 signals added
27.03.2008
Maximum XY2-100 cable length updated
08.09.2008
Index updated
04.11.2008 Chapter Analog Extension updated
09.04.2009
Figures and section USB updated
14.04.2009
Layout changed
02.11.2009 - Output current for Laser Signals and LaserPort added
- Threshold level for MOTF signals added
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26.03.2010
Explanation of Analog Output jumper updated
10.12.2010
Chapter "First Steps / Getting Started" added; Layout changed
12.02.2013
Section "Hardware Installation" to "First Steps" added
Table 1.1: Version history
Safety
The goods delivered by Nutfield are designed to control a laser scanner system. Laser
radiation may affect a person's health or may otherwise cause damage. Prior to installation
and operation compliance with all relevant laser safety regulations has to be secured. The
client shall solely be responsible to strictly comply with all applicable and relevant safety
regulations regarding installation and operation of the system at any time.
The goods will be delivered without housing. The client shall be solely responsible to strictly
comply with all relevant safety regulations for integration and operation of the goods
delivered.
Overview
The USC-1 interface module is designed for controlling a 2-axis galvanometric scanner
system. It supplies also all necessary signals for laser and external control. As an option, the
control of a 3-axis system is also possible.
The controller commands are downloaded via the USB (Version 1.1 or 2.0) interface from
the connected host system. The received commands are stored in a data buffer. When a
block of valid data is available the system enables it for execution while filling additional
buffer blocks with new data transmitted from the host system.
The command size varies from 1 to 6 bytes per command. Depending on the command the
USC-1 can execute 10-30 commands in a 10 us (default) output interval. The maximum
download rate is 1 Mbytes/sec for USB 1.1 and 40 Mbytes/sec for USB 2.0.
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Position Within The System
Figure 1.2: USC-1 integration
Features
The USC-1 has the following key features:
USB 1.1 - 2.0 micro controller on board :
256 Kbytes SRAM for USB data buffering
10 us cycle time
Laser control:
Laser Gate Output:
Laser On and Off delay with 500 ns resolution
Optocouplers TTL level/5 mA output current
Q-Switch output:
Frequency resolution: 41.7 ns (24 MHz clock)
Pulse length resolution: 41.7 ns
Optocouplers TLL level /5 mA output current
First pulse killer output:
Resolution 41.7 ns
Optocouplers TTL level/5 mA output current
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Scanner control:
XY2-100 digital interface
Special digital interface to SCAPS analog board
2 x 8 bit analog channels with 2.5, 5, 10 V output range
1 x 8 bit TTL output port.
External control:
6 opto-insulated outputs
6 opto-insulated inputs (2 - 24 V level)
RS 232 interface
Optional:
digital-analog converter board
control of 3-axis system
MarkingOnTheFly
Power:
Digital and Laser Analog:
+5 V /1.6 A
Board And Connectors
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Figure 2.1: USC-1 jumper
USB
Standard USB Series B Connector, self powered configuration. The maximal cable length
with standard cables is 5 meters, with repeaters up to 25 meters.
Note:
Connection problems can also result from ground loops. To avoid these loops there is a
solder jumper on the bottom side of the USC-1. If the jumper is closed (by default), the cable
shield is connected to the USC-1 ground. Open the jumper to disconnect USC-1 ground and
cable shield.
Figure 2.2: USB cable shield closed (default)
Figure 2.3: USB cable shield open
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Power, Laser, OptoI/O, RS232
This connector provides all signals commonly used to control laser interfaces and allows to
connect external control units like SPS, PC etc. over opto-insulated IO lines. It also provides
the power lines when driving the unit in self powered mode.
Figure 2.4: 37-pin connector assignment
Power
The USC-1 can operate in USB bus powered or self powered mode.
Bus Powered
The USB specification allows drawing 500 mA from the USB power line. The power
consumption of the USC-1 depends on several conditions and can exceed significantly this
upper limit. Although the most USB host systems allow drawing much more power over the
USB line, this mode should be only used for test and evaluation purpose. Next to the
allowed power rate only shorter USB cables should be taken in account since due to the
cable resistance the available voltage on the board itself could go below internal allowed
values.
Self Powered
Self powered mode can be achieved by applying +5 V on VCC pin (pin 24) with respect to
the GND pins (pin 25, 14, 15).
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Figure 2.5: USC-1 power connection
Warning:
To avoid conflicts with the USB power line, Jumper 4 must be removed.
Laser
Gate, LaserA, LaserB
All 3 outputs can operate in opto-insulated mode. For this the LASER_OPTO_VCC (pin 11)
and LASER_OPTO_GND (pin 30) must provide the supply. LASER_OPTO_VCC may not
exceed +5 V with respect to LASER_OPTO_GND.
The maximum output current is 17 mA.
As default the optocouplers take their supply from internal VCC, which causes to eliminate
the opto insulation. In this case the voltages of all 3 outputs are TTL compatible in respect
to GND. The mode can be selected by jumpers JP1 (GND), JP2 (VCC) as shown in figures 2.6a
and 2.6b.
Figure 2.6a: Laser signal optocouplers external supply
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