SMA Off-Grid Systems - Manual (Page 39)

SMA Solar Technology AG 7 Commissioning
Installation - Quick Reference Guide Off-Grid-IS-en-30 39
7 Commissioning
7.1 Switching to Installer Mode
The installer mode is protected with an installer password. The installer password changes constantly and must be
re-calculated every time.
Switch to installer mode on the Sunny Remote Control in accordance with the following procedure.
Procedure:
1. On the Sunny Remote Control, select the setting page Password (1/1) in user mode (see the Sunny Island inverter
operating manual).
2. Calculate the checksum of the operating hours Runtime. This determines the installer password.
3. Select the parameter Set and set the installer password calculated.
☑ The Sunny Remote Control is in installer mode.
7.2 Commissioning the Multifunction Relays
• Set the functions of the multifunction relays on the Sunny Remote Control (see the Sunny Island inverter installation
manual). Tip: In the circuitry overviews, the multifunction relays are connected based on the default values of the
Sunny Island inverter.
/05*$&
Entering incorrect parameter values endangers operational safety
All parameters which could affect the operational safety of the system are protected by the installer password.
• Only a qualified person is permitted to set and adjust system parameters.
• Only give the installer password to qualified persons.
Example: Calculating the checksum
The operating hours Runtime is 1234 h. The checksum is the sum of all digits:
1 + 2 + 3 + 4 = 10
The checksum is 10.