Nautel NX100 Preinstallation Manual

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Nautel NX100 Preinstallation Manual Manual pdf 81 page image

NX100 Pre-installation Manual Planning control/monitor connectionsPage 8-12 Issue 3.2 2017-03-31Analog outputsThe transmitter provides sample signals that let you monitor transmitter performance. The sources ofthese analog outputs are pre-defined and configured at Nautel. See Table 8.5 for a list of these pre-defined outputs, their descriptions and their associated output terminals on the remote interfacePWB. The outputs are op-amp buffered outputs from an analog-to-digital converter (ADC). The dcvoltage of each output is between 0 to 6 V, and varies within the real limits of the parameter beingmonitored. The monitoring circuit’s impedance for each analog output must be greater than 1,000ohms.In addition to the four pre-defined analog outputs, a true RF sample of the RF output voltagewaveform is available for external monitoring.Analog output connectionsAnalog outputs 1 through 4 connect to terminals of connector J6 on the remote interface PWB(A11A4). See Table 8.5 to determine the output terminal associated with each analog output.Table 8.5: Factory Defined Analog OutputsAnalog Output Description Output Terminal1. Forward Power Reports a sample of the transmitter’s forward power level. This dc voltageis a pure square law function and will be 6 V when the forward power is100 kWJ6-42. ReflectedPowerReports a sample of the transmitter’s reflected power level. This dc voltageis a pure square law function and will be full-scale (6 V) when the reflectedpower is 16 kW.J6-33. B+ Voltage Reports a sample of the control cabinet’s B+ dc voltage level. This dcvoltage is a linear function and will be full-scale (6 V) when the B+ voltagein the control cabinet is 400 V.J6-24. Dc Current Reports a sample of the transmitter’s dc current level. This dc voltage is alinear function and will be full-scale (6 V) when the dc current is 500 A.J6-1