en Product description
60 WILO SE 2019-10
4.4 Operating modes
Operating mode S1: Continuous duty
The pump can operate continuously at the rated load without exceeding the permiss-
ible temperature.
Operating mode: Non-immersed operation
The "non-immersed operation" operating mode describes the possibility of the motor
emerging during the drainage pumping sequence. This allows a further lowering of the
water level as far as the upper edge of the hydraulics.
Observe the following points during non-immersed operation:
ƒ Operating mode "non-immersed" indicated
The motor emerging in "non-immersed" operating mode is permissible.
ƒ Operating mode: "non-immersed" not indicated
If the motor is fitted with a temperature controller (2-circuit temperature monitor-
ing), emergence of the motor is permitted. Automatic reactivation can be initiated
after the motor has cooled down using the low temperature. The unit is forced to
deactivate with reactivation lock once the high-temperature has been reached.
CAUTION!To protect the motor winding from overheating, the motor must be
equipped with a temperature controller! If only one temperature limiter is in-
stalled, the motor must not emerge during operation.
ƒ Motor with integrated Digital Data Interface
The motor can be run in emerged mode. The framework parameters are specified
using the "Non-immersed operation" function on the user interface.
ƒ Max. fluid and ambient temperature: The maximum ambient temperature corres-
ponds to the maximum fluid temperature shown on the rating plate.
4.5 Operation with frequency con-
verter
4.5.1 Asynchronous motor
It is possible to operate asynchronous motors at the frequency converter. The fre-
quency converter must feature the following connections at a minimum:
ƒ Bimetallic strip and PTC sensor
ƒ Moisture probe
ƒ Pt100 sensor (if motor bearing monitoring is available!)
Refer to section entitled "Frequency converter operation [}98]" for additional re-
quirements and comply with these!
If the motor features a Digital Data Interface, also guarantee the following prerequis-
ites:
ƒ Network: Ethernet 10BASE-T/100BASE-TX, IP-based
ƒ Protocol support: Modbus TCI/IP
Refer to the separate instructions for the Digital Data Interface for detailed require-
ments!
4.5.2 Permanent magnet motor
Guarantee the following conditions when operating permanent magnet motors:
ƒ Frequency converter with connection for PTC sensor
ƒ Network: Ethernet 10BASE-T/100BASE-TX, IP-based
ƒ Protocol support: Modbus TCI/IP
Refer to the separate instructions for the Digital Data Interface for detailed require-
ments!
Permanent magnet motors have been approved for operation with the following fre-
quency converters:
ƒ Wilo-EFC
Other frequency converters on request!
4.6 Operation in an explosive atmo-
sphere
Asynchronous motor Permanent magnet motor
T 20.2 T 17.3...-P T 20.2...-P
Approval according to IEC-Ex
o o o
ATEX approval
o o o
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