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Digital Multi Control

Pre-VE.Bus scaling factor

Notice

This parameter only applies to pre-VE.Bus systems. Leave it at its default value of 1 for VE.Bus systems.

The scaling factor aligns the control panel AC current with the system AC current and is exclusive to pre-VE.Bus inverter/chargers.

Begin by calculating the scaling factor as directed in this chapter. Afterwards, move on to configuring the scaling factor. For guidance on configuration, consult the Setup menu chapter.

Scaling factor formula:

Scaling factor = (NrOfDevices * DeviceType) - 1

  • DeviceType: 1 = 16A unit, 2 = 30A unit.

  • NrOfDevices: all units, including the master unit.  

Examples:

  • One 16A unit: Scaling factor is: (1 * 1) – 1 = 0

  • Two 30A units in parallel: Scaling factor is: (2 * 2) – 1 = 3

  • Four 30A units in parallel: Scaling factor is: (4 * 2) – 1 = 7

  • Six 30A units in 3-phase (2 paralleled units per phase): Scaling factor is: (2 * 2) – 1 = 3

Important:

  1. When configuring a non-zero scaling factor in the control panel, do not specify the number of slaves in the VEConfigure software. Instead, set the slave count to zero.

  2. In a split-phase or 3-phase setup, the NrOfDevices reflects the number of devices per phase. So for a 3-phase system consisting of 6 units (2 per phase), the NrOfDevices is 2.

In this section: