CET Electric Technology
38
Wiring Diagnostic Status
5
Uan/Uab (3P3W) Fundamental
Ubn/Ubc (3P3W) Fundamental
8
Ucn/Uca (3P3W) Fundamental
8
U1 (Positive Sequence Voltage)
9
U2 (Negative Sequence Voltage)
9
U0 (Zero Sequence Voltage)
9
I1 (Positive Sequence Current)
9
I2 (Negative Sequence Current)
9
I0 (Zero Sequence Current)
9
Table 5-1 Basic Measurements
Notes:
1) DO Status and DI Status are only meaningful if the meter is equipped with the corresponding option.
2) For the DI Status register, the bit values of B0 to B3 represent the states of DI1 to DI4, respectively,
with “1” meaning Active (Closed) and “0” meaning Inactive (Open).
3) For the DO Status register, the bit values of B0 to B1 represent the states of DO1 to DO2,
respectively, with “1” meaning Active (Closed) and “0” meaning Inactive (Open).
4) For the Setpoint Status register, the bit values indicate the various Setpoint states with “1”
meaning Active and “0” meaning Inactive. The following table illustrates the details of the Alarm
Status register.
Table 5-2 Alarm Status Register
5) The following table illustrates the Wiring Diagnostic Status with 0 meaning Normal and 1 meaning
Abnormal:
Summary Bit (Set if any other bit is set)
Frequency is out of range (45 to 65Hz) (3P4W or 3P3W)
Any phase voltage < 10% of PT Primary (Register 6000) (3P4W only)
Any phase current < 10% of CT Primary (Register 6004) (3P4W or 3P3W)
Voltage Phase Reversal (3P4W only)
Current Phase Reversal (3P4W or 3P3W)
Negative kW Total may be abnormal (3P4W or 3P3W)
Negative kWa is may be abnormal (3P4W only)
Negative kWb may be abnormal (3P4W only)
Negative kWc may be abnormal (3P4W only)
CTa polarity may be reversed (3P4W only)
CTb polarity may be reversed (3P4W only)
CTc polarity may be reversed (3P4W only)
Table 5-3 Wiring Diagnostic Status Register
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