User`s manual

Contents
GFK-1742A Contents xv
Module Status Code Word............................................................................. A-1
Axis Error Code Words................................................................................. A-1
Error Code Format ................................................................................................ A-2
Response Methods................................................................................................. A-2
DSM Digital Servo Alarms (B0–BE) ......................................................................... A-14
LED Indicators.......................................................................................................... A-17
Appendix B DSM314 Communications Request Instructions...........................................B-1
Section 1: Communications Request Overview.............................................B-2
Structure of the Communications Request.............................................................. B-2
Corrective Action.......................................................................................... B-4
Monitoring the Status Word ................................................................................. B-5
Error Detection and Handling........................................................................ B-5
Verifying that the DSM Received Correct Data ............................................. B-5
Section 2: The COMM REQ Ladder Instruction ..........................................B-7
DSM COMM REQ Programming Requirements and Recommendations........ B-8
Section 3: The User Data Table (UDT) COMM REQ ..................................B-9
User Data Table COMM REQ Features and Usage Information............................ B-9
The UDT COMM REQ Command Block............................................................B-10
User Data Table COMM REQ Example..............................................................B-12
User Data Table COMM REQ Example .............................................................. B-13
Section 4: The Parameter Load COMM REQ.............................................B-14
The Command Block ..........................................................................................B-14
DSM Parameter Load COMM REQ Example......................................................B-17
Section 5: COMM REQ Ladder Logic Example .........................................B-19
Setting up the COMM REQ Command Block Values ...................................B-19
Locic for Parameter Data (not Shown)..........................................................B-20
Handling Double Integer Parameter Values and Input Value Scaling.............B-20
The Communications Request Instruction.....................................................B-21
Appendix C Position Feedback Devices ..............................................................................C-1
Digital Serial Encoder Modes................................................................................ C-1
Incremental Encoder Mode Considerations .................................................................. C-1
Absolute Encoder Mode Considerations....................................................................... C-2
Absolute Encoder - First Time Use or Use After Loss of Encoder Battery Power ... C-2
Absolute Encoder Mode - Position Initialization.................................................... C-2
Find Home Cycle - Absolute Encoder Mode......................................................... C-2
Set Position Command - Absolute Encoder Mode................................................. C-3
Absolute Encoder Mode - DSM314 Power-Up ...................................................... C-3
Incremental Quadrature Encoder............................................................................ C-3
Appendix D Start-Up and Tuning GE Fanuc Digital and Analog Servo Systems.............D-1
Validating Home Switch, Over Travel Inputs and Motor direction ...............................D-1
Digital Servo System Startup Troubleshooting Hints..............................................D-3
Tuning a GE Fanuc Digital Servo Drive....................................................................... D-4