CAUTION:
- BEFORE ANY MAINTENANCE AND/OR REPAIR WORK ON, DISCONNECT THE MOTOR ELECTRICALLY.
- ON THE INNER AND OUTER PARTS THERE MAY BE SHARP EDGES, HANDLE WITH CARE.
- TO PREVENT THE KEY BEING RELEASED AT HIGH SPEED BE SURE ITS KEY COVER IS ON THE SHAFT IF
THE MOTOR IS TESTED BEFORE BEING MECHANICALLY CONNECTED. IN ADDICTION, BE SURE THE MOTOR
CASING IS LOCKED IN SUCH A POSITION AS TO AVOID DANGER FOR THE SAFETY OF PERSONNEL.
- THE MOTOR CAN ONLY BE DISMANTLED AND REPAIRS BY QUALIFIED TECHNICIANS, NON-OBSERVANCE OF
THIS RULE TOTALLY FORFEITS THE WARRANTY.
11.2 DC MOTORS TROUBLESHOOTING
CAUSE
RIMEDI
THE MOTOR DOES NOT RUN
- Current is not coming through
- Wrong electrical wiring
- Wrong brushes
- Restore the main voltage
- Check the drive is right
- Check the connections
- Replace the brushes
THE MOTOR RUNS AWAY
- Tacho generator or encoder
damaged
- Wrong electrical wiring
- Drive on fault
- Call the dealer
- Check the connections
- Check/Replace the drive
THE MOTOR VIBRATES OR
MAKES TOO MUCH NOISE
- Worn bearings
- Wrong assembly or coupling
- Wrong supply voltage
- Call the dealer
- Check the assembly and/or the coupling
- Check the supply source
11.3 BRUSHLESS TROUBLESHOOTING
CAUSE
RIMEDI
THE MOTOR DOES NOT RUN
- No supply to the motor
- Wrong motor phases link
- Wrong feed backer wire link
- PTC under motor protection (motor
temp. higher than 120°C)
- Check the drive supply
- Check the phases sequence
- Check the encoder / revolver links
- Check the load and wait the
temperature rise is decreased
THE MOTOR FALLS OUT OF
STEPS OR IT VISIBLY VIBRATES
- Wrong motor phases link
- Wrong feed backer wire link
- Incorrect shielding
- Wrong parameters on default
- Feed backer not lined-up
- Check the phases sequence
- Check the encoder / revolver links
- Check the connections and shielding
- Check the right drive set up
- Check the encoder / resolver line-up
THE
MOTOR
LIGHTELY
OSCILATES AT TORQUE ENABLE
- Wrong feed backer wire link
- Check the encoder / revolver links
- Check the connections and shielding
THE
MOTOR
TURNS
IN
IRREGULAR WAY
- Electrical noises on the line
- Check if noises are closet o the motor
(es. relays, electro valves, switch and so
on...)
- Check the right sharing between power
and signal
- Check the connections and shielding
OVERCURRENT ON THE MOTOR
- Wrong motor and/or feed backer
wire links
- Wrong feed backer line-up
- Wrong parameters on default
- Check the connections
- Check the encoder / resolver line-up
- Check the right drive set up
THE MOTOR VIBRATES AND IT’S
NOISY
- Old bearings
- Wrong motor coupling and/or fixing
- Ask the dealer
- Check the coupling and/or fixing
Pag.14
