TDK-Lambda Genesys User Manual

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TDK-Lambda Genesys User Manual Manual pdf 64 page image

5883532002 Rev CTable 5-1: SO Logic Selection5.8. Enable/Disable Control via Rear Panel J1 ConnectorJ1-1 and J1-14 (Fig.4-4) serve as the Output Enable/Disable terminals by switch or relay.This function is enabled or disabled by SW1-9. Refer to Table 5-2 for the Enable/Disablefunction and SW1 settings.SW1-9 setting Enable/DisableinputsPower supplyoutputDisplay ALARM LEDDown (Default) Open or Short On Voltage/Current OffUp Open Off “ENA” BlinkingShort On Voltage/Current OffTable 5-2: Enable/Disable function and SW1 setting5.9. CV/CC SignalThe CV/CC signal indicates the operating mode of the Power Supply, Constant-Voltageor Constant-Current. The CV/CC signal is an open collector output with a 30V parallelzener, at J1-13 and referenced to the COM potential at J1-12 (connected internally to thenegative local sense potential). When the power supply operates in Constant Voltagemode, the CV/CC output is open. When the Power Supply operates in Constant-Currentmode, the CV/CC signal output is low (0-0.6V), with a maximum sink current of 10mA.CAUTIONDO NOT connect the CV/CC signal to a voltage source higher than 30VDC.Always connect the CV/CC signal to a voltage source with a series resistor tolimit the sink current to less than 10mA.5.10. PS_OK SignalThe PS_OK signal indicates a fault condition in the Power Supply. PS_OK is a TTL signaloutput at J1-16, referenced to IF_COM at J1-2, 3 (Isolated Interface Common). When afault condition occurs, the PS_OK level is low with a maximum sink current of 1mA.When no fault condition occurs, the PS_OK level is high with a maximum source currentof 2mA. The following faults will set the PS_OK to a fault state:*OTP *Enable/Disable open (power supply is disabled)*OVP *SO (Rear panel Shut-Off, power supply is shut off)*Foldback *IEEE failure (With optional IEEE interface)*AC Fail *Output Off (by front panel or remote command)CAUTIONTo prevent possible damage to the unit, DO NOT connect any of the Enable/Disable inputsto the positive or negative output potential.If the Enable/Disable inputs are opened when the unit is in Safe-Start mode, it is required toshort the Enable/Disable inputs and then press the OUT button or send the “OUT 1”command to resume operation.If the Enable/Disable inputs are opened when the unit is in Auto-Restart mode, it is requiredto short the Enable/Disable inputs and then the output will turn NOTEback ON automatically.