3 questionable status register, 4 channel status register, Questionable status register -18 – KEPCO EL Series Electronic Load Operator Manual P/N 243-1295 Firmware Version 3.22 through 3.41 User Manual
Page 52: Channel status register -18

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SERIES EL 062011
3.13.7.3 QUESTIONABLE STATUS REGISTER
The QUEStionable condition register (see Figure 3-4) contains status bits representing unusual
operation such as inconsistent sensor readings or unusual but non-fault conditions.
• 0 - Voltage Fault (VF) — 1 indicates the Voltage Fault
• 1 - Overcurrent (OC) — 1 indicates overcurrent condition has been detected.
• 2 - Not Used — always zero.
• 3 - Overpower (OP) — 1 indicates power has exceeded the rated maximum.
• 4 - Overtemperature (OT) — 1 indicates overtemperature condition has been detected.
• 5 - 7 - Not Used — always zero.
• 8 - Not Used — always zero.
• 9 - Not Used — always zero.
• 10 - Not Used — always zero.
• 11 - Not Used — always zero.
• 12 - Overvoltage (OV) — 1 indicates overvoltage condition has been detected.
• 13 - Protection Shutdown (PS) — 1 indicates protection shutdown has occurred
• 14 - 15 - Not Used — always zero.
3.13.7.4 CHANNEL STATUS REGISTER
The Channel Status registers (see Figure 3-4), one for each parallel-connected load, reflect the
state of each load
• 0 - Voltage Fault (VF) — 1 indicates the Voltage Fault
• 1 - Overcurrent (OC) — 1 indicates overcurrent condition has been detected.
• 2 - Not Used — always zero.
• 3 - Overpower (OP) — 1 indicates power has exceeded the rated maximum.
• 4 - Overtemperature (OT) — 1 indicates overtemperature condition has been detected.
• 5 - 7 - Not Used — always zero.
• 8 - Not Used — always zero.
• 9 - Not Used — always zero.
• 10 - Not Used — always zero.
• 11 - Not Used — always zero.
• 12 - Overvoltage (OV) — 1 indicates overvoltage condition has been detected.
• 13 - Protection Shutdown (PS) — 1 indicates protection shutdown has occurred
• 14 - 15 - Not Used — always zero.