CARLO GAVAZZI WM50 Serie Manuel D'instructions page 25

Essential information
Input Possible functions
C2 totalizer pulse counting (water, gas, heat)
5
l
Imported reactive energy meter pulse counting (kvarh+)
l
Input status reading
l
C3 totalizer pulse counting (water, gas, heat)
6
l
Input status reading
l
Notes on digital inputs
To manage tariffs via digital inputs, all three inputs must run the tariff function, see "Tariff management" below. Inputs with pulse
counting function for the energy meter replace calculated (voltage and current measurement) energy meters (total, partial and
tariff).
The pulse weight must be set for inputs with counting function. The type must also be set for inputs with water, gas, heat count
function.
From WM50: See "Settings from WM50" on page 29, sub-menu Dig in x.
Digital outputs
Each digital output can run one of the following functions:
Function Description
Alarm Output associated with one or more of the 16 virtual alarms managed by the main unit
Remote Output status managed via Modbus
Pulse Pulse transmission output on active or reactive, imported or exported energy consumption.
output Only from WM50, a pulse transmission test can be run, see "Running a pulse transmission
test" on page 32.
From WM50: See "Settings from WM50" on page 29.
Tariff management
Tariff management mode
Tariffs can be managed:
via Modbus command
l
via internal calendar and clock
l
via digital inputs
l
Managing tariffs via Modbus command
1. Set tariff management via Modbus command.
2. Change the tariff by entering the value corresponding to the current tariff according to the following table in the 143Fh
registry:
Current tariff
1
2
3
Managing tariffs via internal calendar and clock
Note: this operation requires UCS desktop use.
24 WM50 - Instruction manual | 26/04/2022 | CARLO GAVAZZI Controls SpA
Register value
0
1
2
Current tariff
4
5
6
Parameters
Status of the digital
output in nonalarm
status
-
Energy type
l
Pulse weight
l
Enable of
l
transmission test
Power value for
l
test
Register value
3
4
5