CAUTION!
Supply voltage that is too high will irreparably
damage the pump.
– Do not connect the low-voltage pump to
voltage of > 30 V.
n
The pump will switch to fault mode ("switch-off threshold for
supply") in the event that the supply voltage to the pump is
insufficient to ensure reliable operation. The pump will recom‐
mence operation as soon as the supply voltage is restored.
n
The fault indicator also flashes if the supply voltage is inter‐
rupted during a stroke ("threshold for stroke abort"). Aborted
strokes are not counted by the stroke counter. To do this, the
pump's electronics periodically check the supply voltage (“wait
time after stroke abort”: 10 min). The pump will recommence
operation when there is sufficient supply voltage.
n
The pump's electrical system will fully shut down in the event
that the supply voltage undershoots another threshold. The
pump will come out of standby mode and recommence opera‐
tion as soon as sufficient supply voltage is restored.
n
The programmed thresholds apply to standard lead-acid bat‐
teries. ProMinent can adapt them to customer requirements.
n
Use short large cross-section power lines to minimise faults.
Use batteries with low internal resistance.
n
If the pump is connected with incorrect polarity, it will not run as
its polarity protection does not permit any current to flow.
9.3 Description of the Terminals
9.3.1 "External control" terminal
The "external control" socket is a five-pin panel socket. It is com‐
patible with two- and four-pole cables.
The "Auxiliary rate" function can only be used with a five conductor
cable.
Electrical installation
32
