Wallbox Max.
Load Management Wallbox Max.
Load Management| With
this function block
one or more charging stations can be controlled so that
a specified power is not exceeded. This is for example
necessary when the mains line is not designed for the maximum
load. A maximum current per phase can be specified here. If the current on a phase is exceeded, the wallboxes are reduced until it falls below the limit again. The speed of the control can be set separately for falling below and exceeding, so that on exceeding the value is reduced faster before the mains fuse trips. |
Inputs |
||
| FG |
Enable |
Optional enable. If this
input is not assigned, the control is always enabled. |
| MA |
Current
maximum* |
Maximum current for one phase. |
| L1-3 |
Current L1 - L3 |
Mains power for phase 1-3. |
| P1-x |
Plug occupied |
Optional. Plug status. If the plug occupancy changes from 0
to 1 the setpoint is set to 0 and the control starts
again. This is intended to prevent an overload, since wallboxes
require a minimum power and do not start from 0. |
Outputs |
||
| A1-AX |
Setpoint |
Setpoint in A for the wallboxes |
Parameters |
||
| Number of
outputs |
Number of outputs or wallboxes | |
| Gain+ |
Gain when all 3 phases are below the setpoint. The higher this value, the faster the setpoint is increased. | |
| Gain- | Gain when one of the phases is above the setpoint. The higher this value, the faster the setpoint is reduced. | |
| Reset time+ |
Time in which the control increases the setpoint when all 3 phases are below the setpoint. | |
| Reset time- | Time in which the control reduces the setpoint when one of the phases is above the setpoint. | |
| Hysteresis | Hysteresis for the control. If the actual value is between Current maximum + / - hysteresis the setpoint remains unchanged. | |