Isolated ±15V DC/DC converter (Module V1, V2)68C3 Operations Manual North Atlantic Industries, Inc. 12/19/2014Rev: 2014-12-19-0947 www.naii.com Page 291 of 330Output Current (V-)This register contains an averaged value for the negative - supply output current of the DC/DC converter. TheOutput Current (+) register is an unsigned 16-bit number where the LSB is 1mA.REGISTER D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTIONX X X X X X X 256 128 64 32 16 8 4 2 1 value in mAThreshold 0 0 0 0 0 0 0 D D D D D D D D D D=DATA BITFaultThe Fault register is a read only register that contains two over current fault flags. One flag bit for each channel asindicated. The fault flag is set when the converter output current exceeds the programmed current threshold limitfor more than three seconds. To recover from a fault the Fault register must be cleared and the condition thatcaused the excessive output current must be removed before the power supply will restart.The Fault register is cleared by writing a 0x0001 to the Clear Fault register address.REGISTER D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTIONX X X X X X X X X X X X X X 2 1 ChannelRESET OVER-CURRENT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D D D=DATA BITClear FaultThe Clear Fault register is used to clear the over current fault flag bits. The Fault flags for both channels arecleared by writing a 0x0001 to this address. Reading this register location always returns zero (0x0000).REGISTER D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTIONRESET OVER-CURRENT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D D=DATA BIT
