User manual

Page 37
EA Elektro-Automatik GmbH
Helmholtzstr. 31-33 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
ELR/ELM 5000 Series
3.7 Control panel (HMI) lock
In order to avoid the accidental alteration of a value during manual operation, the rotary knob, the pushbutton and
the touchscreen can be locked so that no alteration of values will be accepted without prior unlocking.
► How to lock the HMI
1. In the main page, tap the lock symbol (upper right corner).
2. The settings page “HMI Lock Setup” will appear, asking you to chose whether the On/
Off button is still usable (“ON/OFF possible = Yes”) during the lock or if the HMI will be
completely locked ((“ON/OFF possible = No”).
3. Activate the lock with . The status “Locked” is then shown as in the gure to the right.
If an attempt is made to alter something whilst the HMI is locked, a requester appears in the display asking if the
lock should be disabled.
► How to unlock the HMI
1. Tap any part of the touchscreen of the locked HMI, or turn the rotary knob or press the button “On/Off” (only
in complete lock).
2. This request pop-up will appear: .
3. Unlock the HMI by tapping on “Tap to unlock” within 5 seconds, otherwise the pop-up will disappear and
the HMI remains locked.