Power reference value MAX 1
Here is the power set point set to the threshold the maximum monitor should limit.
Power value set points MAX 2 to MAX 4
The power set point values MAX 2 to MAX 4 are required for the low tariff switching. The the power setpoint values for high, low, and special tariffs can then be set here. Switching is done either via an external contact or through a defined day period. The day period switch can only be applied to the power setpoint value MAX 2.
Synchronisation
External
The maximum monitor synchronises itself to the measuring period specified by the utility company with the aid of the external synchronisation pulse.
Internal
If no synchronisation pulse is provided by the utility company, this parameter can be used to switch to internal synchronisation. The maximum monitor then generates the measuring period time itself.
Synchronization pulse
Here is the type of synchronous pulse set provided by the utility. It can be selected with either on-and off-signal. A complete impulse is not required, only the trigger of the inputs with the defined signal.
Period duration
Here the measuring period duration of the maximum monitor is set including measurement pauses. For synchronous operation between utility and maximum monitor must be that measuring period duration prescribed by the utility.
Measuring breaks
This parameter specifies the measurement free period in the measurement period. The measurement free period is available from the utility to synchronize. It is the pulse duration of Synchronous pulses.
Calculation interval
With the adjustable Calculation interval the reaction rate of the maximum monitor is set in seconds. In this interval, the power trend and the calculated Outputs set cyclically.
Hysteresis calculation
On the parameter Hysteresis calculation a hysteresis switch for the open-close switching of the Outputs is produced. This hysteresis is seen as a "internally calculated reduction" of Power setpoint value, ie, for example, adjusted nominal value of 100 kW and a Hysteresis calculation of 3%, is internally determined with a power value of 97 kW.
Off-peak switching
With corresponding tariff regulation must be switched to a off peak rate period. In the Off-peak period, the costs of energy supply are lower. The switch can be through an external contact of the utility, or via an internal timing circuit.