Term Definition
Sag
A power event where the voltage or current drops below the
nominal value.
Swell
A power event where the voltage or current rises above the
nominal value.
Transient
A power event where a short duration surge of electrical energy is
detected.
For more information on the Waveform Recorder module, see ION Reference, available on
www.usa.siemens.com/pds.
Default waveform recording configuration
The meter’s default framework includes factory-configured waveform logs (waveform recorders).
These waveform logs and their configuration are used by other components of your power
monitoring system. Do not change the default configuration of any of the logs unless you
understand the impact of the change on these power monitoring system components, the data
they use and your meter’s memory.
Waveform Recorder modules
The factory-default Waveform Recorder modules are preconfigured to capture sag/swell and
transient power quality events.
Waveform recorder Description
Wfm Rc V1-Sg/Sw (Wform Rec 1)
V1 voltage waveforms recorded during a defined sag or
swell event.
Wfm Rc V2-Sg/Sw (Wform Rec 2)
V2 voltage waveforms recorded during a defined sag or
swell event.
Wfm Rc V3-Sg/Sw (Wform Rec 3)
V3 voltage waveforms recorded during a defined sag or
swell event.
Wfm Rc I1-Sg/Sw (Wform Rec 5)
I1 current waveforms recorded during a defined sag or
swell event.
Wfm Rc I2-Sg/Sw (Wform Rec 6)
I2 current waveforms recorded during a defined sag or
swell event.
Wfm Rc I3-Sg/Sw (Wform Rec 7)
I3 current waveforms recorded during a defined sag or
swell event.
Vfm Rc V1-Trnst (Wform Rec 9)
V1 voltage waveforms recorded during a defined
transient event.
Vfm Rc V2-Trnst (Wform Rec 10)
V2 voltage waveforms recorded during a defined
transient event.
9810 series - User manual Logging
7EN05-0390-08 228
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