Solutronic SolPlus 25 - 18 Password Protection; Customised Protection of the Inverter Settings; 19 Resetting to Default Settings

Password Protection
SP25-55_User Manual_B8_EN_2012-11-06 29/32
18 Password Protection
18.1 Customised protection of the inverter settings
To protect the inverter and its parameter settings against unauthorised changes, it is possible to
assign an access code to the inverter.
This is especially important if your inverter is "freely accessible" via a modem or the internet. Since the
password for parameters of password level 1 is the serial number of the inverter, anyone – in theory –
can change your parameter settings.
To prevent this from happening, the following parameters can be used:
Parameter 267: Access code 1
Menu: Device configuration
Unit: ---
Resolution: 1
Default setting: 0
Password level: 1
Parameter 267 is configured such that it indicates the current access setting when it is read:
When reading parameter 267: Value = 0: Access not possible
When reading parameter 267: Value = 1: Access is possible
If you enter access code 1 for parameter 267, access to the inverter will in future be blocked and no
changes will be able to be made without first entering access code 1 again.
To protect the parameter settings of the inverter, proceed as follows:
Set the password level to 1 by entering the relevant password. Now enter access code 1 for
parameter 267 and make a note of this setting. Then enter a different, incorrect value (any value) for
parameter 267 in order to activate the lock once you have finished your work. Your inverter is now
locked and protected. To regain access to the inverter and its parameters, enter your access code for
parameter 267, carry out your work and when finished, deliberately enter an incorrect value again for
parameter 267.
N.B.: It is not possible to read out the numbers entered as access code 1! You must therefore
make a note of these numbers and keep them safe! If, however, you do happen to forget or lose
these numbers, the inverter can only be re-enabled again by the manufacturer. In this case,
Solutronic will provide you with a special code that will enable you to reset the access code.
19 Resetting to Default Settings
Parameter 66: Set standard value
Menu: Device configuration
Unit: ---
Resolution: 1
Default setting: 0
Password level: 1
Parameter 66 resets settings to their default setting, i.e. the values set when the inverter was first
delivered (delivery status):
Possible settings:
Value = 10 If you set parameter 66 to the value 10, all parameters covered by password level 1
are reset to their default settings (delivery status). To enable this function, you have to
set password level 1 (Customer) beforehand.
Value = 20 If you set parameter 66 to the value 20, all parameters covered by password level 2
are reset to their default settings (delivery status). To enable this function, you have to
set password level 2 (Fitter) beforehand.
Value = 70 If you set parameter 66 to the value 70, the data logger will be deleted. To enable this
function, you have to set at least password level 1 (Customer) beforehand.