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How to Lock and Unlock the ATS48 keypad parameters?

Issue:
How to Lock and Unlock the ATS48 keypad parameters?

Product Line:
ATS48

Environment:
Locking and unlocking the keypad
 
Cause:
n/a
 
Resolution:

The following Information can be found in the ATS48 Instruction Bulletin:

• OFF: no access locking codes
- To lock access, enter a code (2 to 999). The display can be incremented using the UP key. Now press ENT. "On" appears on the screen to indicate that the parameters have been locked.
• On: a code is locking access (2 to 999)
- To unlock access, enter the code (incrementing the display using the UP key) and press ENT. The code remains on the display and access is unlocked until the next power down. Parameter access will be locked again on the next power-up. .Note:  Be sure to make note of the this access code
- If an incorrect code is entered, the display changes to "On" and the parameters remain locked.
• XXX: parameter access is unlocked (the code remains on the screen).
- To reactivate locking with the same code when the parameters have been unlocked, return to "On" using the DOWN button then press ENT. "On" appears on the screen to indicate that the parameters have been locked.
- To lock access with a new code when the parameters have been unlocked, enter a new code (increment the display using the UP or DOWN keys) and press ENT. "On" appears on the screen to indicate that the parameters have been locked.
- To clear locking when the parameters have been unlocked, return to "OFF" using the DOWN button and press ENT. "OFF" remains on the screen. The parameters are unlocked and will remain unlocked until the next restart.

If you can't remember the access code please contact Schneider Electric.

Another reason why the ATS48 could be locked is:

- External display VW3G4801 was connected to ATS48 and ATS48 menu has been locked using mechanical switch on the back side of VW3G4801.
- Then external display was removed and ATS48 remained locked.

To solve the problem :
- Connect VW3G4801 to ATS48
- Unlock mechanical switch on VW3G4801
- Remove VW3G4801 from ATS48

 
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