KESSEL-Pumpstation Aqualift€F/Aqualift€F Duo For all wastewaters ...

5. Electrical connections
Connection
Power connection
Motor / pump cables
Twin Pump Systems – Follow all safety regulations!
Instructions
• Power cables L1, L2, L3, N and PE should be connected to their appropriate jacks (located
on the second level from the bottom). Please see the coded installation help located near
the connection area
• It is mandatory that cables N and PE are connected and connected properly
• The power supply cable to the control unit must be equipped with a main On / Off switch
• Each phase of the main power cable must be equipped with a fuse with a max rating of 25 Amps.
• Improper electrical installation / connection of the control unit and / or pumps can
damage or destroy the control system.
• The motor / pump cables 2 x U/V/W should be connected to the ABB-Schütze B6-30-10
jacks T1 / T2 / T3 which are below the motor protection switches (pump 1 left / pump 2
right). The direction of rotation of the motors is to be noted.
• The PE cable is to be connected to the lower level of grey jacks according to the coded
installation help located near the connection area.
• Sufficient slack should be left in the motor cables so that removal of the pump(s) for
repair or maintenance is possible.
Motor temperature sensors • Entry TF1: Cable 5 from the pump 1 should be connected on the right in entry TF1.
Cable 4 should be connected to the left in entry TF1
• Entry TF2: Cable 5 from the pump 2 should be connected on the right in entry TF2.
Cable 4 should be connected to the left in entry TF2
• Entry E7: Cable 6 from pump 1 should be connected on the left in entry E7. (remove
the bridge if necessary).
• Entry E8: Cable 6 from pump 2 should be connected on the left in entry E8. (remove
the bridge if necessary).
Float switch connections
“Off”, “On”, “On2”
and “Alarm”
Warning and Alarm outputs
• The cable ends of the float switches are to be connected to their corresponding
• marked jacks.
• The connection jacks of the float switches should have no other cables entering them
• The connection jacks are marked with switching symbols
• The ʻStörungʼ (malfunction) and ʻAlarmʼ (warning / alarm) control unit signals are controlled
by a relay without a protective safety switch. Inductive loads must be externally
eliminated. The stand by (powerless) position of the relays is printed on the board.
• The relay contacts have no connection to any power supply or operating voltage of the
system and are safely separated up to an operating voltage of 300 V according to Table
D.10 of the EN 61010 Norm (Overload category 2 u. Contamination level 2).
• The relays are designed to switch 250 V / 2 A. Appropriate external measures should be
taken to limit the current to this level.
• It is not allowable to switch phases with the relays. The phase may deviate from L1.
Outputs L1 / N
• The L1 and N outputs (2 each) are designed for an external (extra) warning for the “Malfunc-
(230V / 50 Hz) •tion” and „Alarm” functions. These outputs may not be used for any other purposes.
• Maximum current is 2 amps
Rechargeable battery
• A NiCd-9V-Block rechargeable battery (Type IEC 6F22) may be installed inside the control
unit (it is not included with the control unit). The purpose of this battery is to power the alarm
and notification devices on the control unit during power outages / failures. Do not use a standard
battery! Only use rechargeable batteries that conform to the above specifications.
• Only remove or replace the rechargeable battery in the control unit when the power to the
entire control unit has been turned off / disconnected. Make sure battery polarity is correct
• In the case that a „dead„ or power-less rechargeable battery is placed in the control unit,
the unit will require approximately 36 hours to completely re-charge the battery. After 36
hours the battery and the control unit will be fully operational.
18