46
The company can alter the data mentioned in this manual without notifications
FAILURE OR MALFUNCTION
ID
PROBABLE CAUSE
SOLUTION
!
Motor overheating
C.1
→
Overload
Refer from F.1 to F.4
C.2
→
Insufficient cooling
Check the condition of the fan and the fan cover. If
necessary, clean or replace them.
Check the distance between the fan cover inlet and the wall
C.3
→
Ambient temperature too high
Adapt the environmental conditions to the motor operating
limits.
Replace with motor suitable for environmental conditions
C.4
→
Number of starts too high
Reduce the number of starts
C.5
→
Wrong power supply voltage
Change the power supply voltage or the motor
C.6
→
The voltage is not the same on the 3 phases
Check and correct the power supply voltage on the three
phases.
!
Bearing overheating
D.1
→
Too much grease
Clean the bearings and relubricate
D.2
→
Use of unsuitable grease
D.3
→
Grease aging
D.4
→
Lack of grease
Lubricate the bearings
D.5
→
Excessive axial or radial load
Recheck and resize the load
!
The amperometric relay
trips, the current
absorption is regular
E.1
→
The relay is not setted correctly
Re-calibrate the relay
E.2
→
The relay is defective
Replace the relay
!
The amperometric relay
trips, the current
absorption is higher
than expected
F.1
→
Wrong power supply voltage
Change the power supply voltage or the motor
F.2
→
Loose cable terminals
Tighten all terminals
F.3
→
The driven equipment or the motor are
blocked
Disassemble and repair
F.4
→
Use beyond the permissible operating limits
Bring back the operating conditions within the permissible
limits
!
The amperometric relay
trips, the current
absorption is
unbalanced
G.1
→
The voltage is not the same on the 3 phases
Check and correct the power supply voltage on the three
phases.
G.2
→
One cable is grounded
Replace the cable
G.3
→
The winding is grounded
Rewind the motor
G.4
→
The driven equipment or the motor are
blocked
Disassemble the group and repair
G.5
→
The motor connection is incorrect
Correct the connection according to the connection
diagrams
!
The group generates
abnormal vibrations
and/or noises
H.1
→
The driven equipment, the coupling device
or the motor are damaged/worn
Disassemble the group and repair
H.2
→
Group not leveled/aligned
Correct the alignment and leveling of the group.
H.3
→
Unbalanced group or single components
Check the balancing of the complete group
H.4
→
Wrong direction of rotation of the motor
Reverse the direction of rotation
H.5
→
Loose fixing screws
Tighten the fixing screws correctly
H.6
→
Resonance phenomena
Check the design of the foundations, the system and the
installation in general.
H.7
→
Damaged bearings
Replace the bearings
For further information, refer to the driven equipment manual.
For problems not included in the list, contact SAER technical assistance.
10. SPARE PARTS
Use only original spare parts. For spare parts, refer to the catalogs or contact SAER technical assistance, specifying the type of motor, serial
number and year of construction, which can be found on the identification plate. This product is free from manufacturing defects.
