Allen Bradley Modules 1757-BEM 1757BEM AB 1757 BEM BEM/A BATTERY EXTENSION MODULE Fast shipping
The Remote I/O communications module allows a SCANport product to look and act like a Remote I/O chassis when connected to a programmable controller. Data contained in the input/output image table is transferred between the programmable controller by the Remote I/O scanner, the same as with any Remote I/O chassis. You control the location of data transferred by setting the rack address and
starting group. You control the amount of data by setting the DIP switches on SW3. Important: Thecommunications module does not scale the data that is transferred. Consequently, all scaling of the data must be done in the controller. Refer to the user manual for your SCANport product for details on
device units. Important: The Remote I/O to SCANport conversion is asynchronous. Data sent to the adapter for transfer to the drive must be maintained until the drive has received data.DIP switches on SW3 determine how the data contained in the programmable controller I/O image table is used in the drive. Figure shows an I/O image table.
Related Product Recommendation:
The ground conductor of the motor cable should be connected to the drive ground (GRD) terminal directly. Connecting this ground conductor to a cabinet ground point or ground bus bar may cause high frequency current to circulate in the ground system of the enclosure. The motor end of this ground
conductor must be solidly connected to the motor case ground. Shielded or armored cable may be used to guard against radiated emissions from the motor cable. The shield or armor should be connected to the drive ground terminal and the motor ground as outlined in the Grounding section of this Installation
chapter. Common mode chokes are recommended at the drive output to reduce the common mode noise. An RFI filter can be used and in most situations provides an effective reduction of RFI emissions that may be conducted into the main supplylines. If the installation combines a drive with sensitive devices or circuits,it is recommended that the lowest possible drive PWM frequency be programmed.
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