Operating instructions

5.8 Function and fault Indicator

The operating and fault statuses are indicated by the three LED indicators

and the

“Error”

identifier on the LCD screen, see also the "Trouble‐

shooting" chapter.

5.9 LCD screen

If a fault occurs, the identifier

“Error”

appears and an additional error mes‐

sage.

5.10 LED indicators

Operating indicator (green): The operating indicator illuminates if during

pump operation there are no incoming fault or warning messages. It goes

out briefly with every stroke.

Warning indicator (yellow): The warning indicator illuminates, if the pump

electronics detect a condition which may lead to a fault, e.g. "liquid level

low 1st stage".

Fault indicator (red): The fault indicator illuminates, if a fault occurs e.g.

liquid level low 2nd stage".

5.11 Hierarchy of operating modes, functions and fault statuses

The different operating modes, functions and fault statuses have a dif‐

ferent effect on if and how the pump reacts.

The following list shows the order:

1. - Priming

2. - Fault, Stop, Pause

3. - Auxiliary frequency (external frequency changeover)

4. - Manual, external contact

Comments:

re 1 - "Priming" can take place in any mode of the pump (providing it is

functioning).

re 2 - "Fault", "Stop" and "Pause" stop everything apart from "Priming".

re 3 - The stroke rate of "Auxiliary rate" always has priority over the

stroke rate specified by an operating mode or priority 4.

Functional description