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REVISION DATE: 07/05/06
DCB-274
USERS GUIDE
Nashua, NH 03063
www.stepcontrol.com
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REVISION DATE: 07/05/06
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ADVANCED MICRO SYSTEMS, INC. DCB-274 USERS MANUAL Table of Contents Hardware Introduction.............................................................................................................................1 Product Overview.....................................................................................................................2 Required Hardware for Operation...............................................................................................3 Assembly Drawi
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ADVANCED MICRO SYSTEMS, INC. DCB-274 USERS MANUAL T (Trip Point)......................................................................................................................... 49 V (Set Slew Speed) ............................................................................................................... 50 W (Wait)............................................................................................................................... 51 w (lower case W; Pre-energize)...
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ADVANCED MICRO SYSTEMS, INC. HARDWARE Introduction Thank you for using a DCB-274 Stepper Motor Driver/Controller from ADVANCED MICRO SYSTEMS, INC. This unit is designed to provide years of reliable, accurate and cost-effective motion control. As with all AMS products, the DCB-274 is backed by over two decades of manufacturing excellence and a commitment to quality and support that guarantees your satisfaction. This manual will assist you in optimizing the performance of your system. Its
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ADVANCED MICRO SYSTEMS, INC. HARDWARE Product Overview The DCB-274 combines efficient bi-polar chopper Driver circuitry with AMS’ new, powerful SMC-27X2 Micro-controller on a single, heat sink mounted board, to operate small to mid-size stepping motors. It is designed for low cost O.E.M. applications; yet includes many enhanced operating features found in products costing much more: Features • Programmable hold and run currents • Selectable “PLC” sourcing input mode • All inputs
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ADVANCED MICRO SYSTEMS, INC. HARDWARE Required Hardware for Operation Qty Unit Model # Description 1 Axis DCB-274 Driver-Controller Board 1 System User defined +24 to 40Vdc power supply 1 Axis SIN-7 RS-232 serial adapter (single axis) or 1 System SIN-8 RS232/RS422 serial adapter (multi-axis) or 1 System SIN-10 Intelligent serial adapter (Windows 2000/NT) 1 Axis BLC-38 7 pin home/limit mating connector (included) 1 Axis BLC-44 6 pin mating motor connector (included
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ADVANCED MICRO SYSTEMS, INC. HARDWARE Out of the Box – Quick Start The DCB-274 is supplied with mating motor, power supply and I/O connectors. The SIN-(n) (chosen serial adapter) is supplied with a mating cable and terminator, if required. Equipment Check List 1. A computer with available serial port. 2. Installed serial communications software such as Hyper term, EASI, ProComm, etc. (EASI works with DOS). 3. A DCB-274. 4. A SIN-(n) serial adapter (SIN-10 recommended). 5. A +24* to
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ADVANCED MICRO SYSTEMS, INC. HARDWARE After Sign-on Enter X The parameters are displayed. The last characters displayed will be “n= “ followed by the axis “name” character, usually “A.” To change the name: 1. Turn off power, allow discharge. 2. Turn on power. 3. Depress the desired “name” key, for instance “B.” 4. Depress the SPACE BAR. The DCB-274 will sign-on. 5. Enter X. The new name “B” is displayed. 6. Issue the S (save command). The name is stored in memory. 7.
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ADVANCED MICRO SYSTEMS, INC. HARDWARE “Do’s, Don’ts and Important Notes” • NEVER connect or disconnect motor wires while power is supplied. • When using a 6 lead motor be sure to insulate/isolate unused wires. • The physical direction of the motor with respect to the direction input will depend on the connection of the motor windings. To reverse the direction of the motor with respect to the direction input, switch the wires on phase 1 or phase 2 of the outputs. **************** WARNIN
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ADVANCED MICRO SYSTEMS, INC. HARDWARE Multi-axis Serial Interface Connection BLC-51-XX SERIAL TERMINATOR SERIAL IN SERIAL OUT INTERFACE INTERCONNECT J2, J3 PLUG ADAPTER CABLE Pin 1 SIN-8 OR SIN-10 DCB-274 #1 DCB-274 #”N” I.O. Connections (J1, J4) The DCB-274 has a robust set of input and output signals. Two connectors (J1 and J4) provide dedicated inputs and outputs. Five user-defined signals are also provided. All inputs can withstand voltages in excess of +28 volts. Two
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ADVANCED MICRO SYSTEMS, INC. HARDWARE Pin 7 - VIO Reference Input This signal defines the input and output voltage range. A “default” voltage of 4.6 volts is derived from the internal +5-volt supply, via a diode. Any external load must be limited to several mA. You may apply an external, higher “VIO” voltage, if appropriate to the application. The input signal thresholds will be approximately ½ of VIO or 2.3 volts. The threshold is the same, independent of PLC or “normal” mode. Input
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ADVANCED MICRO SYSTEMS, INC. HARDWARE +5 Internal Power Supply 5 V Pin 4.6 - 30 Vdc VIO VIO Pin + PLC Signal Comparator 10k Input Pin VIO/2 CPU 1 STD STD 2 Signal 3 PLC To other comparators GND Pin Connector Typical User Input Circuit (Step, Direction, Ports 1, 2, 3, 4 (used as an input), Jog (3), Limits, Home, Go and Soft Stop) Output Ports Two user output ports are provided on the DCB-274 with a power FET output circuit capable of sinking up to 2 a
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ADVANCED MICRO SYSTEMS, INC. HARDWARE As an output (as shipped) the signal can be redefined as a stepping pulse output with the “l 2” (lower case L) command. This also defines P5 as a direction output signal. Port 5 Port 5 is an output port/driver, rated at 2-amps. The output signal can be redefined as a direction output with the “l 2” (lower case L) command. Port 4 becomes a step pulse output. The output signal can be redefined as a moving output with the “l 4” (lower case L) command
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ADVANCED MICRO SYSTEMS, INC. HARDWARE Step and Direction Inputs (J1) A 10k pull-up resistor allows open-collector circuits to be used. The inputs will withstand in excess of 24 volts. Pin Signal 6 Ground, common with the power supply input 11 Step pulse input 12 Direction input The recommended step input is a negative going pulse 5 volt TTL or CMOS. Encoder Inputs (J1) Optional encoder circuitry can be specified with the DCB-274-E option. With this option the step input pins
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ADVANCED MICRO SYSTEMS, INC. HARDWARE High Torque High Speed High Speed PH-0 6 6 6 PH-1 5 5 5 PH-2 4 4 4 PH-3 3 3 3 VMM 2 2 2 + Power + Power + Power GND 1 1 1 - GND - GND - GND Bipolar Parallel Bipolar Series Bipolar 50% Copper FIG A FIG B FIG C Typical Wiring Diagrams for Step Motors Fig. A: Series winding for higher torque and lower current. The inductance is 4 times that of the parallel mode, reducing the maximum obtainable speed. Fig. B: Parallel winding for be
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ADVANCED MICRO SYSTEMS, INC. HARDWARE Specifications Electrical Output Current (maximum)………………. 4.0 Amps Chopping Frequency...................…………... 20kHz Supply Voltage............................…….……. +24 to 40 Vdc Motor Step Resolution..............……………. 1/8,1/4,1/2, Full, Wave Non-Volatile Memory.............……………... 2k Bytes Position Counter..........................………….. ±8,388,607 Baud Rate..................................…….……... 9600, 470k Serial Interface……………………………...
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ADVANCED MICRO SYSTEMS, INC. HARDWARE Physical Dimensions Heat sink mounting bracket 0.75 0.22 2.50 4.13 0.75 SERIAL SERIAL 12 PIN I/O 7 PIN 1/O PWR / MTR IN OUT 4.70 5.20 1.38 0.75 SLOTS ACCOMODATE 10-32 MOUNTING HARDWARE NOTE: ALLOW 0.5 INCH CLEARANCE ON ALL CONNECTORS FOR EXTERNAL WIRING 14
