Basic Settings PRELIMINARY
User Manual EML1101
7.9.2 Counter constant ( P_act1,
P_act2)
Here the number of pulses emitted per kWh by the energy meter is entered.
The parameter
P_act2
of the 2nd active pulse input can be set for EML 1101 M and L.
7.9.3 Current transf. ratio Ip/Is: (
P_act1, Q, P_act2)
Enter the ratio of the current transformer(CT) in use here. This is printed on the CT. If there is no CT 1
is entered.
7.9.4 Voltage transf. ratio Vp/Vs: (
P_act1, Q, P_act2)
With medium voltage measurement the transformer ratio of the voltage transformer (VT) must be
entered.
Enter the ratio of the VT in use here. This is printed on the VT.
If there is no voltage
transformer used, i.e. for low voltage measurements (e.g. 400 V), the value 1 is entered.
7.9.5 Average over (P_act1, Q, P_act2)
This setting serves to calculate an average of the registered number of pulses in nets with high
transient power variations. If this function is used, transient power variations are smoothed and
unnecessary load switchings can be avoided.
7.9.6 Counter constant (
Q
)
Enter the pulse values of the pulse counter here.
7.9.7 Cosphi Alarm at cosphi <XX
This setting sets the threshold value for triggering power factor alarm. If a value of 0 is set, the power
factor alarm function is disabled and the standard display shows the correction value P_corr instead of
the cosphi value.
If the limit is exceeded the error message
cos(
ϕ
) – error
is displayed and the alarm is activated. The
error is deleted when the lower limit is exceeded.
7.9.8 Bus address
This setting assigns an individual address for EML1101 so that the central unit EMIS 1500, the EMG
1500-PN, the communication processor EMP 1100 or the system timer EMT1101 can identify the EML
1101 at the
FRAKO Starkstrombus
.
Both bus systems, the FRAKO Starkstrombus
and the add-on
bus
apply to the field bus standard EN
50170.
If the EML is not to be run on a bus, ignore this setting.
After reset the bus address is set to 0.
Be sure when setting the bus address that no other instrument connected to the bus has the same
bus address.
7.9.9 Auto summer/winter time changeover
Automatic daylight saving time changeover can be activated in this menu item. The changeover
occurs on the last Sunday in March at 2 am and the last Sunday in October at 2 am.
7.9.10 Options
This menu item allows access to the next menu level. This is done by pressing
CR
button.
7.9.10.1 Number of Profiles Used
This setting enables
the number of
profiles to be used according to requirements. The number of
profiles used determines how many sets of basic and load settings are to be used. A maximum of 4
profiles is possible.
7.9.10.2 Highest EMD Address
The highest possible
EMD
address enables the number of add-on stations activated to be limited.
Consequently, only data for the corresponding number of
EMD 1101
can be displayed and changed.
16
