CHINT NVF2G-S-3.7 /TS4 - Page 38

1. After the user password is reset, the password will take effect immediately after exiting the function
code editing interface.
2. After entering the user password correctly, if there is no key operation within 2 minutes , the inverter
will be locked again.
3. If the user forgets the user password, he can consult the relevant technical support of our company
for help.
Notice
Set password
as 1001
PressPress
Press
Press
SHIFT
Press
SET
Display 0000 when
there is no password
Enter to parameter
index F7.01
Press
SET
Password
successfully
After 2s
Press PRG
Press PRG
Back to main
page
Press PRG
Enter the
correct
password
Press SET
Press SET
Press SET
Press SET
Press SET
After 2s
Modified the
password
successfully
Modified
password
to 0000
After 2s
Password is cleared
Example 6: Setting method of hexadecimal parameters
When the digital tube displays hexadecimal, for example, check the running status parameters through
F7.05: output frequency, set frequency, bus voltage, output current, PID feedback, PLC current segment number.
Since each bit is independent of each other, the values of ones, tens, hundreds and thousands should be set
respectively. At this time, the binary value of each bit is determined first, and then the binary number is
converted into a hexadecimal number. Conversion of binary settings to hexadecimal
The relationship is shown in Table 7.6:
Figure 7.7 Example of user password service operation
030
NVF2G-S Series Inverter User's Guide