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4-2-20. Group A4 Password countdown lock (supported by 3720 and above versions)
Parameter group access verification
Parameter group lock password
Total power on time before locking
Remaining time of power on locking
As long as A4-02 is set, the countdown function will be turned on.
The factory default A4-01=0. When it is used for the first time, enter 0 on the A4-00, and then verification is
successful.
For example: Set the total power on time to 3h, and set the password to 12345.
The parameter settings are as follows: A4-01=12345, A4-02=3.
If you need to modify the locking power on time, you need to enter the correct password in
A4-00(A4-00=12345) , and you can enter Group A4 parameters after successful verification.
When the remaining time of locking is 0, Err56 fault is shown. The alarm cannot be cleared, nor can it be
cleared after power on again.
If want to clear the alarm, you need to enter the password and set A4-02 to 0, press the stop key on the panel to
clear the alarm.
Notes:
1. Group A4 parameters cannot be written in communication
2. A4-01 cannot be read by communication
3. A4 group parameters cannot be initialized
4. Err56 cannot be cleared when A4-02 > 0
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