WEG PLC300 User Manual - page 27

Description of the Keys

PLC300 | 5-1 

5 DESCRIPTION OF THE KEYS 

Alpha-numeric keyboard

The twelve keys in the upper right part enter numbers, letters and symbols.

The input of letters or symbols it is allowed from firmware version 2.10 up.

Function keys

There are six keys with LED indicators …, which implement up to twelve functions, 

being … activated with the key.

When a function key has some assignment on the current screen, the respective LED 

turns on.

The function keys can be used for BIT functions:

Set bit.

Clear bit.

Toggle bit.

Momentary On.

The function keys can also access a certain screen programmed by the user.

 key

Goes to ‘HOME’ screen, or the user zero screen.

 key

Used to abandon or abort certain internal operations, such as setup, to leave internal 

screens, to abandon editing, etc.

 key

Deletes the digit under the cursor when entering numerical data. 

When in the alarm history, if pressed for t>3s, clears all the alarm history, after confirmation.

 key

When an alarm is activated, the key LED flashes to indicate a new active alarm.

By pressing the key, the list of active alarms is shown and the LED stops flashing, 

indicating the acknowledgement of the alarm.

If the alarm is normalized, it leaves the list of active alarms and goes to the alarm history, 

which can be seen by pressing .