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TEWS TVME200 Channel module

For compatibility with sourcing outputs, the DINP COM terminal is connected to the negative terminal of the power source (4.0 to 30 VDC). The input (DINP1-4) is connected to the sourcing logic output on the field device as shown in the diagram below.DEFAULT OUTPUT FUNCTIONS The list below describes the factory defaults for each of the outputs. DOUT1 (FAULT) Output 1: This output provides the FAULT state of the drive. When the drive is powered and not faulted, the output transistor is turned ON. When the drive is faulted or not powered, the output transistor is turned OFF. DOUT2 (RUN) Output 2: This output provides the RUN state of the drive. When the drive is powered, not faulted and enabled, the output transistor is turned ON. When the drive is faulted, not enabled or not powered, the output transistor is turned OFF. This output indicates when the drive is capable of running the motor. 6.7.2.2. OUTPUTS DRIVING TYPICAL LOADS Both the collector and emitter of the phototransistor are on J4, providing the capability to drive either sinking or sourcing loads. Sinking Load An optoisolator is being driven in this example. The current through the output needs to be limited to 50 mA or less, which is accomplished by selecting an appropriate current limiting resistor. The voltage of the external power source needs to be 30 VDC or less, and can be the same source used to provide power to the inputs.

High Speed Input

The high speed input works directly with 5 V input, 3.0 to 6.0 V range, without the use of a current limiting resistor. To operate the input with voltages higher than 5 V, an external current limiting resistor is required in series with the input. The input current should be in the range of 9 to 24 mA for proper operation. The following table lists the recommended current limiting resistors for supply voltages greater than 5 V.The DAC Monitors are general-purpose analog monitor points. The output range is 0.5 to 4.5 V with a source impedance of 2.9 kW, which limits the short circuit to I/O RTN to 2 mA. Each DAC Monitor can be mapped by software to one of a number of internal variables. J4-13, 16, 23, 26 I/O RTN /O RTN is the ground reference for the DAC MON, Analog Command, Encoder output/inputs, and SFD BAT+. These pins are electrically shorted together inside the drive. Connect one of the I/O RTN pins to an earth ground point in the cabinet reserved for single point grounding of all returns (drives and supplies) to control common mode voltage. 6.7.6 Encoder Outputs/Inputs J4-19 CH A OUT/IN J4-20 CH A OUT/IN J4-21 CH B OUT/IN J4-22 CH B OUT/IN Outputs Channels A and B are RS-485 compliant differential I/O that can be configured as either inputs or outputs. Default is as outputs. When configured as outputs and with high resolution feedback such as the SFD device, Channels A and B provide position signals generated from the feedback device that emulate a quadrature encoder. The outputs are buffered by 5.0 V, 75LBC170 type RS-422 compatible line drivers. Recommended load current is ±20 mA, which corresponds to a line-to-line load resistance of 100 Ω. These outputs can handle shorts to I/O RTN indefinitely without damage.