Several methods to prevent G120 inverter parameters from being

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Frequently asked questions  11/2018

Several methods to prevent G120 inverter

parameters from being modified by mistake

G120 parameter error modification

https://support.industry.siemens.com/cs/cn/zh/view/109762582

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Catalog

1 Method of locking the keys on BOP-2 panel ...................................................... 3

2 Method of activating the write protection function of frequency conversion ...... 4

3 Method of activating G120's proprietary technology protection function through

"STARTER" software .................................................................................................. 5

3.1 Create a special list that does not belong to the protection

of proprietary technology ................................................................................... 5

3.2 Activate the proprietary technology protection function of G120 ......... 5

3.3 Cancel proprietary technology protection function ............................ 6

3.4 Modify the password of proprietary technology protection ................. 7

4 Method of activating G120's proprietary technology protection function through

IOP panel .................................................................................................................. 8

4.1 Create a special list that does not belong to the protection of propri-

etary technology with IOP .......................................................................................... 8

4.2 Activate the proprietary technology protection function of G120 with IOP

................................................................................................................................ 8

4.3 Cancel proprietary technology protection function with IOP ............ 10

4.4 Modify the password of proprietary technology protection with IOP

....................................................................................................................................10

5 Comparison of several methods to prevent G120 parameter from being

modified by mistake ..................................................... 12

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1 Method of locking the buttons on the BOP-2

panel

Press and hold the ESC + OK key on the BOP-2 panel for more than 3

seconds until the panel displays LOCKED, indicating that the panel has been

locked. To unlock, press and hold the ESC + OK key for more than 3 seconds .

When the panel displays UNLOCKED, it indicates that the panel has been

unlocked. This function only locks the function of modifying parameters

through this panel. Parameters can still be changed by using "STARTER"

software or other methods.

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2 Method of activating the write protection

function of frequency converter

By modifying the parameter p7761-1, the write protection function

of frequency converter can be activated. After activating the write

protection of frequency converter, the original parameters will change

(as shown in Figure 2-1, p1120 changes to r1120). So the original P

parameter cannot be modified. If p7761=0 is set again, the write

protection function of frequency converter can be cancel.

Note: activating the write protection function of the inverter can be

cancel by restoring the factory settings, but all the parameters set

before will be cleared.

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3 Method of activating the proprietary tech-

nology protection function of G120

through "STARTER" software

The proprietary technology protection function of G120 can not only protect

our set parameters from being modified, but from being copied by others. Let's

introduce this function:

3.1 Create a special list that is not within the scope of

proprietary technology protection

In order to facilitate G120 maintenance in the future, we can cre-

ate a parameter list before activating the proprietary technology pro-

tection function. After the proprietary technology protection func-

tion is activated, the parameters in this list can still be read and

written.Customers can list the parameters that they want the mainte-

nance personnel to adjust. In the factory setting, only the password

p7766 protected by proprietary technology is include in the special

list.

First, we use STARTER to connect G120. Then click and save it,

offline.Determine the number of parameters required by the special

list by modifying the parameter p7763, then save it and enter the on

line mode. Click and download to G120. After downloading, online,

you can get the corresponding number of subscripts in parameter p7764,

and then input the number to be protected into p7764

As shown in Figure 3-1, set p7763 to 5, and then there will be five

subscripts from p7764[0]-p7764[4] in p7764, so you can set five parame-

ters here.

< Figure 3-1 special case list parameter table >

Special attention should be paid here: If the password p7766 is

deleted from the special list, the password for proprietary technol-

ogy protection cannot be entered or modified. The setting parameters

of G120 can only be accessed again by drinking the factory setting of

G120. When the factory setting is reset, the configuration in G120

will be lost, and G120 must be debugged again.

3.2 Activate the proprietary technology protection

function of G120

After we have completed the debugging of G120 and successfully

created the special list of proprietary technology protection, we

can activate proprietary technology protection function of G120.

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<图 3-2 starter 激活专有技术保护界面><Figure 3-2 STARTER activate

proprietary technology protection interface>

a) In the pop-up dialog box, as shown in Figure 3-3, the first

option, that is, by default, does not have copy protection.

b) If our G120 is configured and inserted with SD card, we can

choose one with basic copy protection function (bound to memory

card) and another with extended copy protection function (bound

to memory card and control unit)

c) If you want to enable the diagnostic function when the

proprietary technology protection is activated, you can

activate the option "enable diagnostic function".

d) Click Specify to enter the password, and select Copy RAM to

ROM, save it permanently, and finally click OK, so that the

proprietary technology protection function is activated.

First, use STARTER software to connect the G120 device online, and

right-click the mouse on the CU unit, as shown in Figure 3-2, and

select Drive unit know-now protection, and then select Active.

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If you select temporary, that is to say, after the power is

restarted, the proprietary technology protection function of G120 is

still effective. If you select permanent and click "Copy RAM to ROM",

G120 will delete the password and cancel the proprietary technology

protection function.

After selection, enter the correct password in the "Password" and

click the "OK" button to cancel the proprietary technology protection

function.

<Figure 3-4 STARTER activate proprietary technology protection password

cancel interface>

3.4 Modifying the password for proprietary technology

protection

Connect G120 device online. In the drive unit know-how protection

menu, select change password to modify the password.

For more information on the protection of the know-how of G120, you

can view the introduction to know how protection is in selection 7.6

of the G120 perating manual or click the link below to view more

details.

http://www.ad.siemens.com.cn/download/docMessage.aspx?ID=6852

<Figure 3-3 STARTER activate proprietary technology protection password

setting interface>

3.3 Cancellation of proprietary technology protection func-

tion

Connect the G120 device online, right-click on the CU unit, select

"Drive unit know-how protection" in the pop-up dialog box and select

"De-activate" from the menu, and then the menu as shown in the figure 3-

4 will pop up.

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4 Method of activate the proprietary tech-

nology protection function of G120 by

IOP panel

The proprietary technology protection function of G120 can not

only be activated by STARTER software, but also be activated by the

IOP panel to protect the parameters we set from being modified and

checked. Here we will introduce this function:

4.1 Using IOP to create a special list that does not

belong to the scope of proprietary technology protection

First, we use IOP to select "Menu" from the main screen, as shown

in Figure 4-1, and then click "search by number" as shown in Figure

4-2. Then input 7763, click "OK", and enter p7763 parameter. By

modifying the value of parameter p7763, we can determine the number

of parameters required in the special list, and then select parameter

p7764 to input the special parameter into p7764.

Special attention should be paid here: if the password p7766 is

deleted from the special list, the password of proprietary

technology protection can no longer be entered or modified. You

must restore the factory settings of G120 before you can access the

setting parameters of G120 again. When the factory settings are

restored, the configuration in G120 will be lost and the G12 must

be debugged again.

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First step To complete the configuration of proprietary

technology protection

Get to the parameter p7765 according to the above method. For

the meaning of parameter p7765, see the following figure:

If G120 is configured and inserted with SD card, you can choose

to set bit 0 to 1. Select the function with extended copy protection

(binding memory card and control unit), or you can choose to set bit

1 to 1 and select the function with basic copy protection (binding

memory card only). If you want to allow the use of G120 diagnostic

and monitoring curve functions, you need to set bit 2 to 1.

Step two Enter a new password

Get to the parameter p7767. There are 0-29, 30 subscripts in

p7767. When setting, enter according to ASC code comparison ta-

ble (see the figure below). The default value in each subscript

is 42, which means "*". p7767[29] needs to be set to 0 after

password input, indicating that password input is completed.

4.2 Using IOP to activate the proprietary technology pro-

tection function of G120

After we have completed the debugging of G120 and successfully

created the special list of proprietary technology protection, we can

activate the proprietary technology protection function of G120.

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For example: enter the password "MaC", as shown in Figure 4-4,

P7767[0]=77, P7767[1]=97, P7767[2]=67. Finally, let P7767[29]=0,

and then the new password is successfully entered.

Step three Confirm the new password and activate the proprietary

technology protection function

According to the above method, enter the same value in P7768 pa-

rameter as in P7767 parameter, and when P7768[29]=0 is set, the

password is confirmed and the proprietary technology protection

is successfully activated. After successfully activation, the

icon will appear on the IOP panel, as shown in Figure 4-5.

For example: input P7768[0]=77, P7768[1]=97, P7768[2]=67. Fi-

nally, let P7768[29]=0 and the proprietary technical protection

function is activated.

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Details of proprietary technology protection using IOP to activate

G120 can be found in section 7.9 of the IOP manual.

https://support.industry.siemens.com/cs/us/en/view/109736312/zh

Note to activate the proprietary function, IOP-2 setting method is

the same as IOP.

4.3 Cancel proprietary technology protection function

with IOP

Get to the parameter P7766 and enter the correct password in

p7766. Finally, set P7766[29]=0. When it is confirmed, the protection

function of proprietary technology is canceled. But it should be

noted that this is only temporary cancellation. After the device is

powered off and powered on again, the proprietary technology protec-

tion is still activated. If you want to cancel completely, you need

to enter the correct password in P7766, then delete the password in

P7767, set the corresponding parameter value to 0, delete and confirm

the password in P7768, then the proprietary technology protection is

completely canceled. For example, P7767[0]=0, P7767[1]=0, P7767[2]=0,

P7767[29]=0. P7768[0]=0, P7768[1]=0, P7768[2]=0, P7768[29]=0.

4.4 Modifying the password protected by proprietary tech-

nology with IOP

Get to the parameter P7766 and enter the correct password. Then en-

ter the new password in P7767 and confirm it in P7768. At this time,

the new password takes effect.

Note that the proprietary technology protection function of G120

activated by STARTER software and activated by IOP panel are inter

connected. The essence of its modification falls into the correspond-

ing parameters. Therefore, the proprietary technology protection func-

tions activated in any way can be canceled and password modified

through IOP or STARTER.

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5 Comparison of several methods to prevent

G120 parameter from being modified by mistake

1) Set BOP-2 to prevent parameters from being modified by mistake.

This method is relatively simple to operate, but the protection level

of this method is relatively low. Other people can modify parameters

by using software and other methods.

2) Activation of write protection to prevent parameters from being

modified by mistake. This method is relatively simple in operation

and comprehensive in protection, but its security level is not

enough.

3) Compared with the other two methods, this methods has the highest

protection level. If the customer has an SD card, it can also bind

the corresponding SD card to prevent the parameters from being copied

by others. The function can be activated through STARTER software or

IOP panel. Activation with STARTER software is more convenient and

fast, while using IOP panel is relatively complex and the operation

is more complicated.