Allen bradley controllers - tcat manual

The start time data is stored in a first-in, first-out method so the record of the last five starts is always maintained. The Peak Start Current data is stored in a first-in, first-out method so the record of the last five starts is always maintained. When three-phase power is removed from the controller, the parameter maintains the value of the previous frequency reading.

The Voltage Unbalance calculation is equal to the largest deviation of the three RMS phase voltage signals from the average RMS phase voltage divided by the average. This deactivates the Control Screen and displays the previous screen. In this case, a fault occurs if the HIM is removed. Parameters are organized in a multi-level menu structure and are divided into programming groups.

Table 46 provides a description of each port. To enable motor control from either of the four ports using a connected HIM-A6, the following steps must be performed from the SMC control module standard power-up screen.

TIP The total data size produced or consumed may vary, depending on the communication card being used. Table 50 Bit Identification details Parameter 43, which is a read-only parameter. Because this value has one decimal place, the value should be multiplied by The correctly written value is If more than one adapter is connected, multiple adapters must not try to use the same DataLink.

Page Updating Firmware 1 The data transferred via the DataLink function is the setting content s of the parameter number as entered by you here. Page Diagnostics This chapter describes the fault diagnostics of the controller and the conditions that cause various faults to occur.

Protection Programming Many of the protective features available with the SMC control module can be enabled and adjusted through the programming parameters provided. For further details on programming, see Motor Protection on page Ensure 0-SMC controller is selected from the list of Devices.

Page Fault Codes Chapter 8 Diagnostics Fault Codes Table 56 provides a complete cross-reference of the available fault codes and corresponding fault descriptions. Page F Removing an expansion module device for example, a SM4 Exp Removed from a SMC control module will result in a x fault, where "x" is the SMC control module port number 7, 8, or 9 the expansion module was installed. Page incompatible power pole is installed.

This Fault is always enabled. Clearing the Fault requires a change to the parameter or loading defaults preferred. It is not cleared by cycling power. Page This fault is always enabled. Page Troubleshooting Chapter Troubleshooting Introduction For safety of maintenance personnel and others who might be exposed to electrical hazards associated with maintenance activities, follow the local safety related work practices for example, NFPA 70E, Part II in the United States.

Maintenance personnel must be trained in the safety practices, procedures, and requirements that pertain to their respective job assignments.

Define Nature of Trouble Motor starts but Motor will not start. Motor stops while Miscellaneous There is no output does not accelerate running. Table 58 Table 59 Table Hold to Test push button was pressed for more Page Underload, Overload, Jam, Stall, etc. To understand what is an abnormal running operation, you need to determine a "normal" or "typical" value, usually established during system startup.

Page Control Module Removal 6. Remove the existing battery, disposing of it according to local environmental codes. With the positive symbol of the new battery facing upward, properly seat the battery into place. In this case, the three line voltages Line A, Line B, Line C measured with respect to ground should be approximately 1 volt rms.

Ensure there is no power to the equipment. Verify that all circuits are voltage free using a hot stick or appropriate high voltage- measuring device. The snubber circuit while the SCR power modules are active. The current loop power supply, which maintains a pre-charge level of power during periods when the SCR power modules are inactive this allows SCR gating while the snubber circuit is being charged.

Page Circuit Board Replacement Troubleshooting Chapter 9 Circuit Board Replacement The replacement of printed circuit boards is straightforward, however, there are a number of precautions which must be considered when handling the boards. Remove all power from the equipment. Page Chapter 9 Troubleshooting B. The high clamping force requires the factory to tighten the clamp hardware. See Appendix H, Spare Parts for part numbers.

Proceed to step C. Page Troubleshooting Chapter 9 8. Tighten the center nut until the indicator washer becomes loose with some friction. The clamp is now at the proper force and must not be clamped any tighter. If the indicator washer becomes too loose no friction , back the center nut off slowly until the washer is loose with some friction. A mm open end wrench is required.

Page Snubber And Resistor Circuit Testing Chapter 9 Troubleshooting Snubber and Resistor If the resistance checks from the thyristor testing section were abnormal and the thyristors checked out OK, there may be a problem in the snubber or resistor Circuit Testing circuits.

The resistance should be The two ground connections must be connected to ground, or to each other if the module has been removed. Do this by setting a value in the Time to PM, Parameter 21, to indicate the amount of running time before PM needs to be done. Page Periodic Inspection Dirty, wet or contaminated parts must be replaced unless they can be cleaned effectively by vacuuming or wiping.

By changing the value of the tag, you change the element of the array that your logic references. Page Expressions Chapter 2 Organizing Tags The following example loads a series of preset values into a timer, one value array element at a time. Page 55 Organizing Tags Chapter 2 You can use these operators to specify the subscript of an array. Table 7 - Format Expressions If the operator requires Use this format Transitional instructions also generate a major fault even if the rung is false.

The controller checks the array subscript in these instructions even if the rung is false. Page Tag Documentation Organizing Tags Chapter 2 Tag Documentation The table outlines the four types of tags that can be created and the descriptions that you can document for each one. You may or may not want to use these descriptions. Once you enable documentation languages in the Logix Designer application, you can dynamically switch between languages as you use the application.

For example, use forces to: test and debug your logic. Use forces only as a temporary measure. Force an Input Value Forcing an input or consumed tag: overrides the value regardless of the value of the physical device or produced tag.

Install the force value. Right-click a tag that has the force and choose Monitor. Right-click a tag or element that has the force and choose Remove Force. Page Introduction Chapter Data Access Control In the Logix platform, version 18 or later of the application, there are two tag Introduction attributes that allow you to control access to tag data. You can also modify that value just like other tag attributes. These changes can be made throughout the application.

However, the External Access box will update its value to be the same as the external access of the base target. From the Type menu, choose a tag type. From the External Access menu, choose an external access option. Click OK. As shown in the example below, the External Access box is dimmed for an alias tag.

Three external access rules apply for members of User-defined data types. You can only set external access for the top members of that User-defined data type.

Page Constant Value Tags Data Access Control Chapter 4 Constant Value Tags Version 18 and later of the application, you can designate tags as constants to protect them from being changed programatically via: the controller programming application. Tags that cannot be designated as constants are User-defined type members, Add-On Instruction input and output parameters, and local tags.

The controllers are not addressable for use on a multi-drop communications system. The information contained in this manual is intended to answer some of the most common questions associated with the installation of the System.

Warning: This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to P65Warnings. Specifications for this item. User Manual. Let Us Find It Current response time:.

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