Does the system have analog inputs?

No analog inputs are integrated at the factory. However, this function can be implemented at extra cost. Alternatively, pulse counters for power measurement of selected equipment to be controlled can be connected to free binary inputs.

Analog inputs: In principle, the same applies here with regard to the system structure as for the analog outputs! If analog inputs are required for load optimization (e.g. for instantaneous power limitation, analog power measurement of equipment to be controlled), we additionally use the analog couplings BS401 (8 voltage inputs 230 V AC, 32 current inputs 0...1A) or BS403 (4 voltage inputs 230 V AC, 12 current inputs 0...1A).

Per U1500 A0 micro system or per U1500 A2 system extension, a maximum of 32 analog inputs minus the occupied binary inputs (one component can manage a maximum of 32 analog/binary signals) are thus available. Alternatively, pulse counters for power measurement of selected equipment to be controlled can be connected to free binary inputs.

A separate analog power measurement is only indicated if the power requirement of the equipment to be controlled fluctuates extremely (greater than +/- 20 %). For such applications, the determination of the power contribution for the corresponding optimization channel is individually configured and programmed at the factory (at software level).

By default, the power contribution of the equipment is calculated permanently by the system from the binary run feedback signal and the specified average power of this equipment; the control algorithm compensates for errors in the average power of individual equipment of approx. 20 % based on the total power measurement. This is sufficient for 99 % of all connected equipment, so that analog power measurement can usually be dispensed with.