Installation And Electrical Connection - Wilo CronoLine-IL-E Einbau- Und Betriebsanleitung

English
Overload protection
Switching frequency
Variants
7 Installation and electrical
connection
Safety
78
The pumps are equipped with an electronic overload protection func-
tion which switches off the pump in the event of an overload.
For data storage, the electronic modules are equipped with a perma-
nent memory. The data is retained no matter how longer the module
is disconnected from the power supply. When the power supply is re-
established, the pump continues to run with the values set prior to
disconnection from the power supply. Behaviour after being switched
on
During commissioning, the pump will work with the factory settings.
• The service menu deals with the setting and converting of individual
pumps; see chapter 8 "Operation" on page 91.
• To correct faults, also see chapter 11 "Faults, causes and remedies"
on page 114.
• For additional information about the factory settings, see chapter 13
"Factory settings" on page 124.
CAUTION! Risk of property damage!
Modifying the settings for the differential pressure sensor can lead
to malfunctions. The factory settings are configured for the sup-
plied WILO differential pressure sensor.
• Default value: input In1 = 0–10 volts, pressure value correction = ON
• When using the supplied Wilo differential pressure sensor, these
settings must not be changed!
Modifications are only needed if another differential pressure
sensor is used.
At high ambient temperatures, the thermal load on the electronic
module can be reduced by lowering the switching frequency
(menu <4.1.2.0>).
NOTICE:
Carry out the switch over/change only when the pump is at a standstill
(not when the motor is running).
The switching frequency can be changed via the menu, the CAN bus
or the IR-Stick.
Lower switching frequencies result in increased noise levels.
If the menu <5.7.2.0> "Pressure value correction" is not available on
the display of a given pump, that pump is a variant in which the fol-
lowing functions are not available:
• Pressure value correction (menu <5.7.2.0>)
• Efficiency-optimised activation and deactivation in double pumps
• Flow rate trend display
DANGER! Risk of fatal injury!
Incorrect installation and improper electrical connections can be
life-threatening.
• Have the electrical connections set up by qualified electricians
only, in compliance with the applicable regulations!
• Adhere to accident prevention regulations.
DANGER! Risk of fatal injury!
Failure to install safety devices on the electronic module or near
the coupling/motor can cause electrical shock or contact with
rotating parts, potentially resulting in life-threatening injuries.
• Before commissioning, all safety devices such as module covers or
coupling covers that were removed must be reinstalled!
WILO SE 08/2022