Wilo Flumen OPTI-TR 20-1 Instrucciones De Instalación Y Funcionamiento página 314

en
314
Faults, causes and remedies
DANGER
Risk of death due to electrocution!
Improper conduct when carrying out electrical work can lead to death due to electric
shock! Electrical work must be carried out by a qualified electrician in accordance
with the locally applicable regulations.
DANGER
Risk of fatal injury due to dangerous lone working practices!
Work in chambers and narrow rooms as well as work involving risk of falling are dan-
gerous work. Such work may not be carried out autonomously! A second person
must be present for safety reasons.
WARNING
No persons may remain in the working area of the mixer!
Persons can suffer (serious) injury while the mixer is in operation! No persons may
therefore be present inside the working area. If persons should enter the mixer's
working area, deactivate the mixer and safeguard it against being switched on again
by unauthorised persons!
WARNING
The propeller blade has sharp edges!
Sharp edges can form on the propeller blades. There is a risk of limbs being severed.
Wear safety gloves to protect against cuts.
Fault: The mixer does not start up
1. Mains connection interrupted or short-circuit/earth fault in the cable or motor
winding.
⇒ Have the connection and motor checked by a qualified electrician and replace
if necessary.
2. Tripping of fuses, of the motor protection switch or the monitoring device.
⇒ Have the connection and the monitoring device checked by a qualified electri-
cian and change it if necessary.
⇒ Have the motor protection switches and fuses installed and adjusted accord-
ing to technical specifications by a qualified electrician and reset the monitor-
ing devices.
⇒ Check that the propeller rotates easily, and clean the propeller and mechanical
seal if necessary.
3. The sealing chamber control (optional) has broken the electric circuit (connection-
related).
⇒ See "Fault: Mechanical seal leakage, pre-chamber/sealing chamber control re-
ports a fault and switches the mixer off"
Fault: Mixer starts up, motor protection trips after short period
1. Motor protection switch set incorrectly.
⇒ Have the setting of the trigger checked and corrected by a qualified electri-
cian.
2. Increased current consumption due to major voltage drop.
⇒ Have the voltage of individual phases checked by a qualified electrician. Con-
tact the power grid operator.
3. The connection only has two phases.
⇒ Have the connection checked and corrected by a qualified electrician.
4. Voltage differences between the phases are too great.
WILO SE 2019-01