Advertisement
A S P M E T E R C O M M I S S I O N I N G
—
ASPMETER commissioning
Configure device button
After scanning for devices, the tool locates all E3x and
ASPMETER devices connected to the system. Select a
meter from the list and click the read from device button
to configure.
1. General
Select the CT configuration used in the installation. This
tab looks different for the ASPMETER (E30) solid-core
and E31 split-core devices with only the options for the
selected device appearing as options. The device location
is an optional description the installer can enter to specify
the location of each device on the network.
Note: If the configuration tool is opened on a computer
not connected to a meter, the tool defaults to the E30
general tab.
E30 general tab (Use for ASPMETER)¹
¹ Note: The ASPMETER is only available as a solid-core product.
E31 general tab
2. Demand
Select the number of sub-intervals and the sub-interval
length to be used in data collection.
These settings apply to current demand (registers 269–272,
1462–1503) and power demand (registers 277, 1378–1419).
Configure the number of sub-intervals. The default is 1, but
it can be set for 1–6 sub-interval windows.
Configure sub-interval length (register 72). The default is 900
sec. (15 minutes), but it can be set from 10–32767 (in seconds).
For sync to comms, set to 0. Sync to comms mode will start
demand calculations based on writes to Modbus register 295
with a value of 26012 (decimal).
Calculate demand by continuously summing the sub-interval
averages and dividing by the number of sub-intervals. The
sub-interval average is recalculated every second from the
RMS values for current and power. The demand register will
update at the end of each sub-interval. See the example
below. For block mode, set the number of sub-intervals to 1
(reg. 71).
15
kW
10
10
8
5
1
2
Demand is updated
between each sub-interval
6
Σ
Demand =
n = 1
8 kW = 10 + 8 + 7 + 5 + 3 + 15
6
6
Sub-interval length
(user configurable)
15
7
5
3
3
4
5
6
Sub-interval
subinterval average (N) (kW)
6
6
6
6
6
31
Advertisement
