V5.00
25832_EDEBD
A0289-5020-1_EN
13
Range of Functions
2.6
Power Measurement Using Energy Pulses from the Energy Supplier
The multimax can be adapted to the energy supplier conditions. Energy proportional en-
ergy pulses are required as characteristic quantity for the power. They are either provided
by the network operator or created by a pulse generator/counter. The instantaneous
power for trend calculation is continuously determined via pulse period measurement
and pulse count.
2.7
Meter Pulse Monitoring
In case the pulses are interrupted, a central error message system can be activated by
means of the error message contacts.
2.8
Recording Current Power
If the electricity supplier is not able to provide an energy pulse, you have the option of
implementing the instantaneous operating reference power via a voltage and current
measurement (active power reference), using a multimess D4-1.
The multimess D4-1 measuring module has three measuring channels whose measured
values can be further processed directly as power values. The fourth channel relays the
total value of the three measuring channels. This means that four power values are pro-
vided.
I/O parameters of channels 1 to 4:
Channels 1, 2 and 3 (single channel):
Channel name
Primary transformer voltage value
Secondary transformer voltage value
Primary transformer current
Secondary transformer current
Measurement type: consumption or recovery
Single or three-phase power measurement
Channel 4 (mixed channel):
Channel name
Primary transformer voltage value (taken from channels 1 to 3)
Secondary transformer voltage value (taken from channels 1 to 3)
Primary transformer current value (taken from channels 1 to 3)
Secondary transformer current value (taken from channels 1 to 3)
Measurement type: consumption or recovery