AMS DCB-274 manual Encoder Input Option J1, Port, Typical Output Circuit

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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. The moving output is useful in designs where a PLC or computer cannot interrogate motion status using serial communications (the preferred method).

The FET transistor ratings are RDSon=.065 ohm, VDS= 55-volts and ID=17 amps (because the FET transistors are not heat-sunk, never draw more than 3 amps) Damage caused from miss application of these devices is not covered by warranty.

VIO

Optional Clamp

SMC-26

Microprocessor

Buffer

Mosfet

+

Load

-

Output Pin

Typical Output Circuit

The default “off” condition is non-conducting (5-volts) when a port is turned on (such as the “A 16” command). The output will conduct to zero volts (Ground) at up to the rated current of 16 mA, DC.

Encoder Input Option (J1)

This option does not support “Encoder Feedback”

The DCB-274 is available with step and direction or encoder inputs. Depending on the option, either step and direction or optional encoder phase A and phase B can be used. Several features and cautions must be observed.

1.The position counter will follow the input step/direction (or A/B) inputs.

2.The limit switches function, with direction sensitivity.

3.The minimum pulse low time is 7 microseconds.

4.Stepping occurs on the rising edge of the pulse.

5.The direction must be setup prior to the rising step edge.

6.Direction must be held for >10 microseconds after the rising step edge.

7.Motion commands will conflict with these inputs.

8.The maximum step rate is 16,000* pulses per second.

*Higher step rates may be possible on some products. Contact AMS for details.

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Contents Nashua, NH Page Revision Date 07/05/06 Page Advanced Micro SYSTEMS, INC Addenum Introduction Limitations or Exceptions for the DCB-274Features Product OverviewRequired Hardware for Operation SIN-8Out of the Box Quick Start Connect the Motor After Sign-onDual Ammeter Circuit Serial Interface J2, J3 Advanced Micro SYSTEMS, INC Hardware Connections J1, J4Pin 7 VIO Reference Input Input PortsStandard Mode- Sinking Inputs PLC Mode- Sourcing InputsTypical User Input Circuit Output PortsPort Encoder Input Option J1Typical Output Circuit Step and Direction Inputs J1 Power Supply and Motor Connection J5Encoder Inputs J1 Typical Wiring Diagrams for Step Motors Baud Rate Jumpers B1, B2Specifications ElectricalEnvironmental PhysicalPhysical Dimensions Overview RS-232 HardwareRS-232 RS-422Single axis, RS-232 connection using AMS SIN-7 adapter RS-232 Daisy Chain connectionCable Specifications RS-422 Party Line HardwareParty Line Connect RS-422 Party LineRS-422/485 BUS-drop SIN-8 Serial AdapterSIN-8, RS-232 to RS-422 converter SIN-10 Intelligent Serial Adapter Other Party Line SignalsSIN-10, intelligent serial line converter Party Line Mode Daisy Chain Mode not recommended for more than 1 axisSerial Communications Overview Serial Communications SoftwareSerial Interface Using Easi Baud RateEasi Software Sign-OnExamine Command Daisy Chain Start-Up Simple Command ExamplesAxis Name Assignment Verify the Program NV Memory ProgrammingExecute the Program Edit Program Party Line and Daisy Chain Line CommandsSome Rules Command Example Party Line StartupAnatomy of Instruction Execution Interrupt Commands Command Cycle ExamplesAdvanced Micro SYSTEMS, INC Serial Interface Advanced Micro SYSTEMS, INC Serial Interface Non-Volatile Memory Details Memory MapDefault Table Turbo RamESC Global Abort Command Format Description@ Soft Stop Reset Port Read/WriteInputs OutputsProgramming Example Set Jog Speeds Lower case B Fast and Slow DecayClear and Restore NV Memory Divide SpeedsNormally Closed Home Switch Normally Open Home SwitchFind Home Special case Go Step Resolution Initial VelocityJump to Address a, n+1 times Lower case I Restart Special TripRamp Slope Lower case K Trip Output Value Advanced Micro SYSTEMS, INC SMC-27X2 Software Lower case L Option Flags Loop on PortFlags and Numbers PLC Mode Flag Limit Polarity FlagMake Step and Direction Outputs Flag Moving Output FlagPort 4 Input Flag Move at a Constant VelocityGentle Limit Flag Program Mode Set OriginIndex Relative to Origin Save Trip PointSet Slew Speed Wait Lower case W Pre-energizeExamine Hold and Run CurrentRead Position Read NV Memory Read Limits, Hardware+ Index in Plus Direction Index in Minus DirectionRead Moving Status \ Write to NV MemorySelective Termination Name AxisParty Line Mode AMS SIN-11 Serial AdapterCommand Summary Advanced Micro SYSTEMS, INC AddendumAscii Character Code Ctrl Char Dec Hex CodeStep Motor Characteristics About Step Motor CurrentMotor Choice Determining the Current ValueAmps and Wire Count and Power Basic 8 Wire MotorWire Motor Application Notes V1.10 Double Speed Characteristics Decay ControlSerial Adapter Summary