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5.4 Options
Relay option
5.5 Function and fault indicator
5.6 LCD screen
5.7 LED displays
5.8 Hierarchy of operating modes, functions and fault statuses
"Priming" function: Priming (short-term transport at maximum frequency)
can be triggered by simultaneous pressing of the two arrow keys in the
"Stroke rate" continuous display.
The pump has two connecting options (not with PROFIBUS
Option "Fault indicating relay" or "Output relay": In the event of fault sig‐
nals, warning signals or tripped level switches, the relay connects to com‐
plete an electric circuit (for alarm horns etc.). The relay can be retrofitted
via a knock-out in the drive unit.
"Fault indicating and pacing relay" option In addition to the fault indicating
relay, the pacing relay can be used to make a contact every stroke. The
relay can be retrofitted via a knock-out in the drive unit.
The operating and fault statuses are indicated by the three LED indicators
'Error' identifier on the LCD screen, see also the "Trouble‐
and the
shooting" chapter.
If a fault occurs, the identifier
sage.
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".
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
Functional description
'Error' appears and an additional error mes‐
or timer):
®
15
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