HEIDENHAIN ND 281 B v.1 - Manual (Page 48)

48
Locking the Keypad
You can disable or re-enable the keypad by entering the code
number 24 65 84:
➤ Select the user parameter P00 CODE (see “Operating
Parameters”).
➤ Enter the code number 24 65 84.
➤ Confirm the entry with ENT.
➤ With the “•” or “–” key, select KEYS ON or
KEYS OFF .
➤ Confirm your selection with ENT.
If the keypad is locked, you can only select the datum or
select
P00 CODE over the MOD key.
Locking the Keypad