BINDER M 53 - Manual (Page 47)

M (E2) 10/2014 page 47/71
11.10 Keyboard locking (option)
The keyboard of the MB1 controller can be locked and unlocked via the key switch (option). In the locked
position, no entries to the controller are possible.
• Locked keyboard: Switch in vertical position
• Unlocked keyboard: Switch in position to the right
You can remove the key only when the keyboard is locked.
Key switch
Figure 14: Keyboard locking (option)
If the keyboard is locked, the notification “KEY LOCK” is dis-
played on the controller MB1 display next to a flashing blue
information symbol.
12. Maintenance, cleaning, and service
12.1 Maintenance intervals, service
DANGER
Electrical hazard.
Danger of death.

The unit must NOT become wet during operation or maintenance work.

Do NOT remove the rear panel of the unit.
 Before conducting maintenance work, turn off the unit at the main power switch and
disconnect the power plug.
 Ensure all maintenance work is conducted by licensed electricians or experts author-
ized by BINDER.
Ensure regular maintenance work is performed at least once a year.
The warranty becomes void if maintenance work is conducted by non-authorized personnel.
Replace the door gasket only when cold. Otherwise, the door gasket may become damaged.
HAND
W VIEW->
KEY LOCK