User Manual V 1-4.XX User guide
Table Of Contents
- Front Cover
- Chapter 1
- Chapter 2
- Chapter 3
- Chapter 4
- Chapter 5
- Chapter 6
- Chapter 7
- Chapter 8
- Chapter 9
- Chapter 10
- Chapter 11
- Chapter 12
- Chapter 13
- Appendix A
- Appendix B
- Appendix C
- Appendix D
- Appendix E
- Appendix F
- Who Should Use this Manual?
- What Is the 1336 IMPACT Drive?
- Purpose of this Manual
- Terms and Abbreviations
- Common Techniques Used in this Manual
- Allen-Bradley Support
- Table of Contents
- Preface
- Chapter 1
- Chapter 2
- Mounting and Wiring Your 1336 IMPACT Drive
- Chapter Objectives
- Before Mounting Your Drive
- Input Fuses and Circuit Breakers
- Mounting Your Drive
- Grounding Your Drive
- Wiring the Power
- Hard Wiring Your I/O
- Connecting Your Gateway
- Installing an Interface Board
- Connecting the Power to the Drive
- Disconnecting the Drive Output
- Starting and Stopping the Motor
- Electrical Interference— EMI/RFI
- Do I Need an RFI Filter?
- Mounting and Wiring Your 1336 IMPACT Drive
- Chapter 3
- Chapter 4
- Chapter 5
- Using the LOption
- Chapter Objectives
- What is the LOption?
- What Functions are Available?
- Setting Up the LOption Board
- Using an Encoder with the LOption Board
- Requirements for the Contact Closure Interface Board (L4)
- Requirements for the 24V AC/DC Interface Board Requirements (L5)
- Requirements for the 115V AC Interface Board (L6)
- Requirements for the Contact Closure Interface Board (L7E)
- Requirements for the 24VAC/DC Interface Board Requirements (L8E)
- Requirements for the 115V AC Interface Board (L9E)
- Using the LOption
- Chapter 6
- Starting Up Your System
- Chapter Objectives
- Before Applying Power to Your Drive
- Applying Power to Your Drive
- Recording Your Drive and Motor Information
- Understanding the Basics of the Human Interface Module (HIM)
- Starting Up Your System
- Running the Quick Motor Tune Procedure
- Configuring the Digital Section
- Configuring the Analog Section
- Understanding Links
- Where Do I Go From Here?
- Starting Up Your System
- Chapter 7
- Chapter 8
- Chapter 9
- Applications
- Chapter Objectives
- Choosing a Motor Feedback Source
- Choosing an Optional Braking/Decelerating Method
- Using DC Hold
- Using Up to 400% Motor Current
- Understanding the Scale and Offset Parameters for Analog I/O
- Using 4 – 20mA Inputs/Outputs
- Using a Remote Pot
- Using MOP
- Using Flying Start
- Speed Profiling Introduction
- Speed Profiling Operation
- Speed Profile Start Up Configuration
- Initial Setup Requirements
- Profile Command & Control
- Using the TB3 Inputs
- Encoder Steps
- Applications
- Chapter 10
- Using the Function Block
- Chapter Objectives
- What is a Function Block?
- Evaluating the Inputs
- Using the Timer Delay Function
- Using the State Machine Function
- Using the Add/Subtract Function
- Using the Maximum/Minimum Function
- Using the Up/Down Counter Function
- Using the Multiply/Divide Function
- Using the Scale Function
- Using the Hysteresis Function
- Using the Band Function
- Using the Logical Add/Subtract Function
- Using the Logical Multiply/Divide Function
- Using the Function Block
- Chapter 11
- Chapter 12
- Troubleshooting
- Chapter Objectives
- Required Equipment
- Fault/Warning Handling
- Viewing the Fault and Warning Queues on the HIM
- What Are the Fault Descriptions?
- Understanding Precharge and Ridethrough Faults
- Understanding the Bus Voltage Tracker
- Understanding the Parameter Limit Faults
- Understanding the Math Limit Faults
- Start Up Troubleshooting Procedures
- Miscellaneous Troubleshooting Procedures
- Encoderless Troubleshooting Problems
- Troubleshooting
- Chapter 13
- Appendix A
- Appendix B
- Appendix C
- Appendix D
- Appendix E
- Appendix F
- Index
- Back Cover
Setting Up the Input/Output 7-7
Determining the offset and scale parameters for analog outputs can be
confusing. You need to calculate the offset before you can calculate
the scale. However, because the drive applies the scale first and then
the offset, you need to take the inverse of your results. For example, if
you calculated a scale factor of 2 and you were trying to convert from
±4096 drive units to a ±10V output, you would actually want to use a
scale factor of 1/2, or 0.5.
Figure 7.5 shows an example of the scale and offset values for an
analog output parameter.
Figure 7.5
Example of Scale and Offset for Analog Outputs
Figure 7.5 is used to help explain the offset and scale values for
analog output. To determine the offset and scale values, you need to:
1. Compare the output range to the internal units range. In the
example shown in Figure 7.5, you would compare the ranges
represented by A and B.
In the example shown in Figure 7.5, the ranges were different so
we used Step 2.
2. Calculate the offset. For example, if you need a 0 to +10V input
and you have a ±4096 internal range, you need to offset the 0 to
+10V range to get a ± range. In this case, you would have an
offset of -5.
3. Take the opposite sign of what your offset calculations show. In
this case, the true offset would be +5. Therefore, when +5 is
added to the range values after the range is converted to an analog
value, the range comes out to 0 to 10V.
Analog
Output
Offset Scale
+10
0
+5
–5
+1024
–1024
+4096
–4096
0.25+5 0 05
Digital to
Analog
Converter
±
1024 =
±
5V
Internal
Units
Range of the drive
output in internal
units after the scale
is applied
Range of the analog
output before the
offset is applied
Add drive
A
C
B
By adding +5 to both
±
5, you get the 0–10V
range your meter requires.
By multiplying
±
4096 by 0.25,
you get
±
1024 which, when
converted, equals
±
5V.
5V
0V
10V
If the ranges are: Then you: Go to:
The same (that is, both ±,
both 0 to +n, or both 0 to -n)
Do not need an offset Step 4
Different Need an offset Step 2