Commissioning; Personnel Qualifications; Operator's Obligations; Direction Of Rotation Check (Three-Phase Motors Only) - Wilo Rexa CUT GI Instrucciones De Instalación Y Funcionamiento

en-US
6.5.6 Adjustment of the motor protec-
tion
6.5.6.1 Direct start-up
6.5.6.2 Soft starter
6.5.7 Operation with frequency con-
verter
7

Commissioning

7.1

Personnel qualifications

7.2

Operator's obligations

7.3 Direction of rotation check
(three-phase motors only)
24
Commissioning
CAUTION
Connection of the sealing chamber control
If there is only a warning when the threshold is reached, the pump could be irreparably
damaged by water ingress. It is always recommended to switch off the pump!
The motor protection must be set depending on the selected activation type.
At full load, set the motor protection switch to the rated current (see rating plate). At partial
load, it is recommended to set the motor protection switch to 5 % above the measured cur-
rent in the duty point.
At full load, set the motor protection switch to the rated current (see rating plate). At partial
load, it is recommended to set the motor protection switch to 5 % above the measured cur-
rent in the duty point. Furthermore, observe the following points:
▪ Current consumption must always be lower than the rated current.
▪ Complete starting and stopping within 30 s.
▪ To avoid power dissipation, bypass the electronic starter (soft start) once normal operation
is reached.
Operation on a frequency converter is not permissible.
WARNING
Foot injuries due to a lack of protective equipment!
During work there is a risk of (serious) injury. Wear safety shoes!
▪ Electrical work: A qualified electrician must carry out the electrical work.
▪ Operation/control: Operating personnel must be trained in the operating principle of the
complete system.
▪ Provision of the 'Installation and operating instructions' at the pump or at a place designated
for these.
▪ Provision of the 'Installation and operating instructions' in the language of the personnel.
▪ Ensure that all personnel have read and understood the 'Installation and operating instruc-
tions'.
▪ All system safety devices and emergency cut-outs are active and have been checked to en-
sure that they work properly.
▪ The pump is suitable for use under the specified operating conditions.
At the factory the pump is checked and set to the correct direction of rotation for a clock-
wise rotating field. The connection is made according to the information in the "Electrical
connection" section.
Checking the direction of rotation
A qualified electrician checks the rotating field on the mains connection with a rotating field
test device. For the correct direction of rotation, a clockwise rotating field on the mains
connection must be present. The pump is not approved for operation with a counter-clock-
wise rotating field! CAUTION! If the direction of rotation is checked with a test run, ad-
here to the environmental and operating conditions!
Incorrect direction of rotation
If the direction of rotation is incorrect change the connection as follows:
▪ For motors in direct starting swap two phases.
WILO SE 2019-02