1336 IMPACT Drives Selection Guide
Allen Bradley 1336 Drives are powerful and precise microprocessor-controlled adjustable frequency AC units that offer an innovative handheld programming terminal. Their high performance makes them suitable for guiding various three-phase industrial applications, with output voltage calibrated according to the output frequency to accommodate the motor's parameters.
The 1336 IMPACT Drives are advanced microprocessor-controlled, frequency-adjustable AC motors providing fine-tuned control over 3-phase engines. Especially important in applications that require speed and torque manipulation, they utilize patented Allen-Bradley Force technology to obtain unparalleled motor performance and data monitoring within a single device. Rated at 200 - 240 Volts AC, 380 - 480 Volts AC, or 500 - 600 Volts AC for three-phase input with standard power ratings between 0.37 to 485 kilowatts (0.5 to 650 Horsepower) at a maximum constant torque of 250 Hertz and customizable from 522 to 597 kilowatts (700 to 800 Horsepower), these drives prove essential for maximizing productivity and efficiency.
Features
The Allen Bradley 1336 Drives have a user-friendly interface and are easy to commission and set up. They have non-volatile parameter storage and extensive diagnostics, including tests for the logic board and power structure. There are 32 entry fault and warning queues with markers for apparent defects, power-up, and time stamps. The drives have an enclosed construction and multiple communication interfaces for SCANport access. The L Option board enables a complete encoder interface through quadrature A, A NOT, B, and B NOT, with encoder supply and input. There are two 12-bit analog inputs and outputs for ±10V, a 12-bit resolution 4-20mA input and output, and a 5- or 12V DC pulse input.
The drives also have bumpless speed/torque control, programmable output contacts, function blocks, and various braking options. They have a DC hold feature and a 200/400% motor curve with an S-curve option. There are autostart, start and stop dwells, analog input filters, and a process trim feature. The drives also have fast flux up and two/three wire control options and feedback filters, including light, heavy, lead/lag, and notch. They also have a Flying Start feature.
Options
The 1336 IMPACT drive offers a range of options, including DriveTools, a PC-based programming software compatible with 1336 IMPACT drives, and other Allen-Bradley 1336 and 1395 products. Other options include:
- Dynamic braking.
- An AC motor contactor.
- An L Option board with or without an encoder interface.
The drive can also be equipped with a Human Interface Module (HIM), a Graphics Programming Terminal (GPT), and gateway modules called Bulletin 1203 communications modules.
Protective Features
The 1336 IMPACT drive has several protective measures to ensure safe operation. These include programmable motor overload protection that UL has evaluated to comply with NEC Article 430, inverter overload protection, over-speed detection even when functioning as a torque follower, programmable stall detection, monitoring of peak output current to prevent excessive current at the output due to short circuits, ground fault monitoring, monitoring of DC bus voltage to protect against Undervoltage or overvoltage conditions, monitoring of power structure heatsink temperature, detection of motor Overspeed, and an internal voltage reflection reduction mechanism.
Connecting Power to the Drive
The 1336 IMPACT drive can be used with an electric circuit that can generate up to 200,000 rms symmetrical amperes when used with the specified AC line fuses. It is important to note that the device does not have internal short-circuit protection for its power input.
Unbalanced Distribution Systems
The 1336 IMPACT drive requires a three-phase power supply that is symmetrically balanced to the ground. To prevent overvoltage damage due to lightning strikes, it contains surge suppressors for added security. Thus, a neutral grounding system should be utilized for the optimal functioning of the device. This device can work with a grounded phase too. However, it might be wiser to use an isolation transformer to provide a balanced supply relative to the ground.
Ungrounded Distribution Systems
Each of the 1336 IMPACT drives is equipped with a MOV (Metal Oxide Varistor), which abides by IEEE 587 standards and provides both voltage surge protection and phase-to-phase and phase-to-ground protection. However, this MOV should not be employed for sustained use since it will cause a continuous current pathway to ground in case of an ungrounded distribution system. Moreover, its line-to-line and line-to-ground voltages should always be at most the input voltage rating, or it can get damaged.
Understanding the Basics of a Human Interface Module (HIM)
A Human Interface Module (HIM) is the default user interface for the 1336 IMPACT drive. It is important to note that the HIM should be connected to SCANport 1 for all functions to work correctly. Suppose one uses a different programming device, such as a Graphic Programming Terminal (GPT). In that case, one will need to refer to the instructions for that device and modify the start-up procedures accordingly. The HIM has a display panel and a control panel, which allow one to program the drive, view operating parameters, and control various drive functions. The display panel has the Escape, Select, Increment, Decrement, and Enter keys, while the control panel has the Start, Stop, Jog, Change Direction, Up Arrow, and Down Arrow keys. It also has a Direction LED and a Speed Indicator. When Power is first applied to the drive, the HIM will display screens showing the drive name, HIM ID number, and communication status. The drive's position will be displayed on the screen when the start-up procedure is complete. If there are any faults present, they will also be displayed. During the start-up process, one must respond to the questions stated in the status display area.
Understanding Links
Concerning the 1336 IMPACT initiative, a link is an inter-program connection that transmits information from one component (the source parameter) to another (the destination parameter). A single source parameter can be used in multiple destinations, while each destination is only linked to a single source.
User-Friendly Ways for Creating a Link
To link two parameters on the 1336 IMPACT drive, start at the destination parameter, which is the one that will receive information. For a practical example, if one wants to connect SP An Output (parameter 139) and Motor Torque % (parameter 86), begin by choosing Links in Choose Mode. Subsequently, select Set Links, as this allows for scrolling through all possible parameters linked together. Continue by finding the destination parameter (in this case, parameter 139) using either Increment or Decrement. Then press Select, and locate the source parameter (in this example, parameter 86). Finally, press Enter to finish off before exiting Set Links mode with Escape.
Drive Units
The 1336 IMPACT drive uses internal units to display input and output data. Each data set has a resolution of 16 bits, which allows for values ranging from -32767 to 32767 or -65535 to 65535. The drive is calibrated to measure each value relative to 4096 internal units, equivalent to 100% of the regulated sum. For example, if the drive receives a DC signal of ±10V, the digitized value will be 1024, resulting in a range of -2048 to 2048. For analog outputs, the resolution is set so that 1024 internal units correspond to 5 volts.
