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CET PMC-53A User Manual

CET PMC-53A
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CET Electric Technology
51
Bit
Event
B00
Summary Bit (Set if any other bit is set)
B01
Frequency is out of range (45 to 65Hz) (3P4W or 3P3W)
B02
Any phase voltage < 10% of PT Primary (Register 6000) (3P4W only)
B03
Any phase current < 10% of CT Primary (Register 6004) (3P4W or 3P3W)
B04
RTD 1 broken (RTD Input option only)
B05
RTD 2 broken (RTD Input option only)
B06
Voltage Phase Reversal (3P4W only)
B07
Current Phase Reversal (3P4W or 3P3W)
B08
Negative kW Total may be abnormal (3P4W or 3P3W)
B09
Negative kWa is may be abnormal (3P4W only)
B10
Negative kWb may be abnormal (3P4W only)
B11
Negative kWc may be abnormal (3P4W only)
B12
CTa polarity may be reversed (3P4W only)
B13
CTb polarity may be reversed (3P4W only)
B14
CTc polarity may be reversed (3P4W only)
B15
Reserved
Table 5-3 Wiring Diagnostic Status Register
6) The range of the Log Pointers (SOE and DRx) is between 0 and 0xFFFFFFFFH. The Log Pointer is
incremented by one for every new log generated and will roll over to 0 if its current value is
0xFFFFFFFFH. If a Clear SOE Log or Clear DRx Log is performed from the front panel or via
communications, the corresponding Log Pointer will be reset to zero. Therefore, any 3rd party
software should assume that a Clear Log action has been performed if it sees the SOE Log Pointer
rolling over to zero or to a value that is smaller than its own pointer.
7) The Device Operating Time means the accumulated running time whenever any per-phase Current
exceeds the Current Threshold of the Device Operating Time (Register #6049). The Device
Operating Time data is stored in non-volatile memory and will not suffer any loss in the event of a
power failure.
8) The PMC-53A has one SOE Log and five DR Logs. Each of these logs has a Log Pointer that indicates
its current logging position. The range of the Log Pointer is between 0 and 0xFFFFFFFF, and it is
incremented by one for every new log generated and will roll over to 0 if its current value is
0xFFFFFFFF. A value of zero indicates that the SOE or DRx does not contain any Log. If a Clear Log is
performed via communications, its Log Pointer will be reset to zero.
Use the following equation to determine the latest log location:
Latest Log Location = Modulo [Log Pointer / Log Depth]
where Log Pointer may be one of the following:
SOE Log Pointer, DR1 DR5 Log Pointers
and Log Depth is as follows:
SOE Log Depth = 100 (fixed)
DRx Log Depth = DRx Recording Depth (see Section 5.11.5 Data Recorder Setup)
9) When the Wiring Mode is 1P2W L-N or 1P2W L-L, the L2 and L3 phase voltages and currents have
no meaning, and their registers are reserved.
10) When the Wiring Mode is 1P2W L-N, 1P2W L-L or 1P3W, the Sequence Components U1/I1, U2/I2
and U0/I0 have no meaning and their registers are reserved.
5.2 Energy Measurements
The Energy registers have a maximum value of 1,000,000,000 and will roll over to zero
automatically when it is reached. The actual energy value is 0.1 times of the register value.
5.2.1 3-Phase Total Energy Measurements
Register
Property
Description
Format
Scale
Unit
0500
RW
kWh Import
INT32
x0.1
kWh
0502
RW
kWh Export
INT32

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CET PMC-53A Specifications

General IconGeneral
BrandCET
ModelPMC-53A
CategoryMeasuring Instruments
LanguageEnglish

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