24 V supply voltage
An external 24 V voltage supply is required for the regenerative power supply and for the connected inverters.
Observe the following information:
The required 24 V backup voltage must be switched on before the line voltage and switched off after the line voltage. The 24 V backup voltage is required both on the regenerative power supply and on the inverters.
The maximum permitted length of the 24 V supply cable is 30 m.
