6.49 Pulse input counters
Two configurable digital inputs can be used for counter input. The two counters can, for example, be used for fuel consumption or
heat flow. The two digital inputs can ONLY be configured for pulse inputs via M-Logic, as shown in the example below.
• Scaling of pulse input can be set in menu 6851/6861. It is possible to determine the scale value to be pulse/unit or unit/pulse.
• Counter values can be read out in display, and the number of decimals can be adjusted in menu 6853/6863.
6.50 kWh/kvarh counters
The controller has two transistor outputs, each representing a value for the power production. The outputs are pulse outputs, and
the pulse length for each of the activations is 1 second.
Term. number
Output
20 kWh
21 kvarh
22 Common terminal
The number of pulses depends on the actual adjusted setting of the nominal power:
Generator power
Value Number of pulses (kWh) Number of pulses (kvarh)
P
NOM
<100 kW 1 pulse/kWh 1 pulse/kvarh
P
NOM
100 to 1000 kW 1 pulse/10 kWh 1 pulse/10 kvarh
P
NOM
>1000 kW 1 pulse/100 kWh 1 pulse/100 kvarh
INFO
The kWh measurement is shown in the display as well, but the kvarh measurement is only available through the transistor
output.
INFO
Be careful - the maximum burden for the transistor outputs is 10 mA.
DESIGNER'S HANDBOOK 4189341275A EN Page 181 of 196
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