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

Control Block Diagrams B-33
For both the temperature tests and the current over time tests, the
internal reference Is is scaled in terms of percent rated motor current.
It is also scaled to the inverter. For these conversions, Nameplate
Amps (parameter 4) and Inverter Amps (parameter 11) are also used.
Understanding the NTC Foldback Protection
The NTC foldback protection test measures for excessive
temperatures within the device. To do this:
1. The value of I
s
, which has been converted to inverter units, is
multiplied by 30°C.
2. This value represents a temperature rise that is added to the actual
inverter heatsink temperature.
3. From the result of this sum, 120°C is subtracted.
4. The result is an error value that is integrated and limited.
If NTC foldback predicts that the temperature within the device has
exceeded 120°C, then the motor current is limited (causing a foldback
condition).
If the motor current has been limited in the positive direction due to
excessive temperature, bit 1 is set in Torque Limit Sts (parameter 87).
Bit 9 indicates a current limit in the negative direction due to
excessive inverter temperature.
Understanding the IT Inverter Protection
The IT inverter protection test measures for excessive current over
time. To do this for most drives, the test uses both 100% and 150%
times the rated inverter current in motor per unit. (For the 460/800 HP
H-frame drives, the test uses 100% and 135%.) If the current stays at
or above 150% times the rated inverter current for 60 seconds, the test
limits the current to 100% times the rated inverter current. When a
drive limits the current, either bit 2 (positive values) or bit 10
(negative values) in Torque Limit Sts (parameter 87) is set.
You can also decide if you want to be notified when the drive limits
the current.
The following is the inverter overload curve for frames A – G This
inverter overload curve also applies to the frame H, with the exception
of the 460V/800 HP.
file:
Monitor
group:
Drive/Inv Status
To: You need to:
Receive a fault Set bit 13 in Fault Select 2 (parameter 22).
Receive a warning
Set bit 13 in Warning Select 2 (parameter 23) and clear
bit 13 in Fault Select 2.
Ignore the limit condition Clear bit 13 in both Fault Select 2 and Warning Select 2.