DSE7200 / 7300 Series Operators Manual
12
3.6 GENERATOR AND MAINS VOLTAGE / FREQUENCY SENSING
3.6.1 GENERAL
Measurement type True RMS conversion
Sample Rate 5KHz or better
Harmonics Up to 10
or better
Input Impedance
300K Ω ph-N
Common mode offset from Earth 100V AC (max)
3.6.2 VOLTAGE SENSING
See section entitled Part Numbering elsewhere in this document to identify the Hardware Version of the controller
you are using.
3.6.2.1 MODEL HARDWARE VERSION 001 TO 006
Phase to Neutral 15V
(minimum required for sensing frequency
)
to 333V AC
(absolute maximum)
Suitable for 110V to 277V nominal
(±20% for under/overvoltage detection)
Phase to Phase 26V
(minimum required for sensing frequency
)
to 576V AC
(absolute maximum)
Suitable for 190V ph-ph to 479V ph-ph nominal
(±20% for under/overvoltage detection)
Resolution 1V AC phase to neutral
2V AC phase to phase
Accuracy
±1% of full scale phase to neutral
±2% of full scale phase to phase
3.6.2.2 MODEL HARDWARE VERSION 007 ONWARDS
Phase To Neutral
15V
(minimum required for sensing frequency
)
to 415V AC
(absolute maximum)
Suitable for 345V nominal
(±20% for under/overvoltage detection)
Phase To Phase
25V
(minimum required for sensing frequency
)
to 720V AC
(absolute maximum)
Suitable for 600V nominal
(±20% for under/overvoltage detection)
Resolution
1V AC phase to neutral
2V AC phase to phase
Accuracy
±1% of full scale phase to neutral
±2% of full scale phase to phase
3.6.3 FREQUENCY SENSING
Minimum frequency 3.5Hz
Maximum frequency 75.0Hz
Frequency resolution 0.1Hz
Frequency accuracy ±0.2Hz
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