Steridose Sanimixer, Руководство по установке и эксплуатации

Страница: 14 / 16

Fault Possible cause Action
The mixer does not start Fault in power supply Check power supply
The impeller does not rotate Male bearing or magnetic drive not
mounted Dismount the drive unit, detach the
impeller and mount the male bear-
ing, impeller and magnetic drive
Insufficient power Motor connected incorrectly Check wiring diagram and wiring
Poor mixing a) The impeller does not rotate at
the maximum speed
b) Impeller rotating in the wrong di-
rection a) Increase speed, pay attention to
the guidelines in section 3.6.2.
b) Check the drive installation
AC: phase reverse power cables
DC: pole reverse power cables
AIR: swap the air supply and outlet
hoses.
Verify the impeller rotates clockwise
when seen from above
The mixer does not reach the re-
quired maximum rpm Incorrectly set parameters in the
VFD (Variable Frequency Drive)
Adjust and calibrate the VFD
Slow and inefficient compressed air
driven motor Clogged motor housing Flush with paraffin as per motor
supplier’s maintenance instructions
Noise from the mixer a) Impeller has rotated without fluid
between the male and female bear-
ing
b) Worn out bearings
c) Missing male bearing
d) Mechanical interference (con-
tact) between impeller and weld
plate
e) Mechanical interference (con-
tact) between magnet rotor and
weld plate
a) Stop the mixer. Do not restart un-
til the fluid level covers the impeller
b) Replace the bearing and the im-
peller
c) see b)
d) Reinstall the weld plate correctly
e) Realign the magnet rotor
Noise from the drive unit (first dis-
card that this is not ’normal noise’
amplified by the vessel acting as a
soundboard) a) New drive unit has not been al-
lowed to run in b) Gearbox prob-
lems. Running insufficiently lubri-
cated a) Run the drive unit for a couple
of hours to see if the noise disap-
pears b) Refer to gearbox supplier
maintenance manual
Magnetic coupling disconnected a) Acceleration too rapid
b) Speed to high for the application a) Adjust acceleration
b) lower speed.
Insufficient cleaning of the impeller Poor fluid flow through the impeller
a) Due to low fluid level
b) Due to low speed
c) Due to high speed
d) Magnetic particles a) Increase fluid level
b) Increase spead
c) Reduce speed and the formation
of vortices
d) Magnetic particles are not re-
moved during normal cleaning. The
impeller must be removed and
cleaned separately
n Table 7 Troubleshooting.
14 | © Steridose www.steridose.com