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Functional Check - Ksb Upa Control Betriebsanleitung

Schaltschrank für trockenlaufschutz
Vorschau ausblenden Andere Handbücher für UPA CONTROL:
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Caution
1. Earthing is provided by bridging the RE terminal and the earthing terminal.
2. In earthed wells or tanks an earthing electrode RE must be fitted as shown in the drawing. It is imperative that the electrodes be
positioned exactly as indicated.
Pump is switched off
7.4
Water level control using 1 electrode,
"Filling" mode
Possible, but not to be recommended.
7.5
Additional applications
-- System with pressure vessel
Connect the pressure switch to terminals P1 and P2 of the
connection terminal strip (remove bridge between P1 and
P2).
-- Filling a tank
The pump is switched off via a float switch connected to P1
and P2 as soon as the maximum filling level is reached.
7.6
Commissioning / Start-up
-- Commissioning / start-up must only be performed by
suitably qualified personnel.
Commissioning / start-up of the pump set is enabled or dis-
enabled by setting the master switch either to ON or OFF
position. The yellow lamp indicates that the control unit is
ready for operation.
-- Three-phase pump
Two directions of rotation are possible. To check the correct
direction of rotation, proceed as follows:
Start-up the pump set, close the shut-off valve in the dis-
18
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1 electrode
Pump is started once the
cut-in relay period has
elapsed
charge pipe and check the current pressure level with the
pressure gauge fitted upstream of the shut-off valve. If this
pressure value corresponds to the pump characteristic (see
pump catalogue booklet), the direction of rotation is correct.
If the pressure is lower than given by the characteristic
curve, the pump is running in the wrong direction of rotation.
To remedy this malfunction, interchange two phases on the
thermal relay terminals (disconnect the control unit from the
mains beforehand). Repeat the direction of rotation check.
7.7

Functional check

Pre-condition: The control unit is connected to the power supply
(the yellow lamp is on). The master switch is in "ON" position.
-- Operation using 3 electrodes in "Draining" mode:
Disconnect the EH and EB electrodes from the connection
terminal strip one after another. The pump set stops and the
red lack-of-water indicator lamp goes on.
Then, connect the EB and EH electrodes to the terminal strip
one after another. The pump set starts up again and the red
lamp goes out.
If the functional check does not produce the results de-
scribed above, i. e. if the red indicator lamp does not go out,
increase the relay system's sensitivity level on the potentio-
meter until there is a contact and the red lamp goes out.
UPA CONTROL
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