Electrical Connection; Switch On Pump; Normal Operation - Becker DT 4.25 Translation Of The Operating Instructions

19 | DT 4.10, DT 4.16, DT 4.25, DT 4.40, DX 4.10, DX 4.16, DX 4.25, DX 4.40
DANGER
Danger to life due to defective, dismantled and manipulated protective devices
DANGER
Danger to life due to unexpected start-up
NOTE
For a description of the safety instructions, see Chap. 2.9
The electrical installation of the pump shall comply with the requirements of Directive 2006/42/EC and EN
60204:2019.
If the pump is integrated into a control system, it must be ensured that the pump does not restart automatically after
an undesired voltage drop. The measures against unexpected start-up according to DIN EN ISO 14118:2018-07 must
be implemented. This also applies after a shutdown following an emergency stop.
The following points must be observed when installing the pump:
• The pump must be protected by overload protection. Operation without an appropriate fuse is prohibited.
• The pump may be operated with a maximum of 10 start/stop cycles per hour.
• The supply line of the pump must meet the minimum requirements of the state of the art
6.3.1

ELECTRICAL CONNECTION

6.4

SWITCH ON PUMP

The pump is switched on via switching elements in the application. After switching on, the pump goes directly into
normal operating mode. There are no subordinate operating modes for setup, maintenance or troubleshooting.
The pump must not be switched on until it has been properly set up, the electrical installation has been properly
installed and the media lines have been connected.
6.5

NORMAL OPERATION

In normal operation, the pump operates fully automatically within its physical limits, according to the customer's
control.
Connecting the motor
The motor must be connected according to the connection diagram (see
terminal box cover or instruction leaflet in the terminal box).
The permissible connection types of the motor can be found on the
motor type plate.
The motor must be protected by a motor circuit breaker for which the
service factor (SF) must be taken into account. Operation without an
appropriate fuse is prohibited.
Permitted direction of rotation of the pump
Before commissioning, check that the pump is rotating in the prescribed
direction (observe the direction of rotation arrow on the side cover).
To do this, start the pump only briefly (max. 3 sec.), as operation with the
wrong direction of rotation will damage the pump.
If the pump does not run in the specified direction of rotation (view of
the motor fan wheel), this must be changed by swapping two connection
phases.