8
5. Time rating
This motor can be operated continuously (continuous rating).
6. Maintenance · inspection
6. 1 Inspection
It is recommended that periodic inspections would be conducted for the items listed below after each operation of the motor. If an abnormal condition
is noted, discontinue any use and contact your nearest Oriental Motor sales office.
■
Inspection item
• Check if any of the mounting screws of the motor and gearhead are loose.
• Check if the bearing part (ball bearings) of the motor generates unusual noises.
• Check if the bearing part (ball bearings) or gear meshing part of the gearhead generates unusual noises.
• Check if the output shaft of the motor and gearhead and a load shaft are out of alignment.
6. 2 Warranty
Check on the Oriental Motor Website for the product warranty.
6. 3 Disposal
Dispose the product correctly in accordance with laws and regulations, or instructions of local governments.
7. Locked rotor burnout protection of motor
This motor is equipped with a feature listed below to prevent the motor from burning out as a result of abnormal heating which may be caused by
misapplication.
■
Thermal protection (
“
THERMALLY PROTECTED
”
“
TP212
”
is stamped on the motor name plate)
When the motor reaches a predetermined temperature, the internal thermal protector is activated and the motor is stopped.
In this stage, the electromagnetic brake is left released so that the motor does not keep hold of the load. Adopt another safety measure.
With the automatic resume feature, the motor automatically begins operating again as soon as the motor temperature falls.
Always turn the power off before performing inspections.
Thermal protector activation range:
Power is turned off at 150°C ± 5°C (302°F ± 9°F)
Power is turned back on at 96°C ± 15°C (205°F ± 27°F)
8. Troubleshooting
When the motor is not functioning normally, perform an inspection covering the points listed in the table bellow.
If the inspection shows that everything is normal but the motor and control unit still are not functioning correctly, contact the nearest
ORIENTAL MOTOR office.
Problem
Things to check
The motor does not rotate
or
motor rotates at low speed
1. Is the correct voltage being supplied to the motor?
2. Are lead wires properly and firmly connected?
3. Is the load too large?
4. If lead wires have been extended by using a terminal strip or terminal block, are the lead wires
properly and firmly connected at all points?
5. For a single-phase motor, is the provided capacitor connected as shown in the wiring diagram of
6. Is the correct voltage being supplied to the terminals for magnetic brake (B)?
The motor rotate correctly
or properly
1. Are lead wires properly and firmly connected?
2. If lead wires have been extended by using a terminal strip or terminal block, are the lead wires
properly and firmly connected at all points?
3. For a single-phase motor, is the provided capacitor connected as shown in the wiring diagram of
The motor rotates
in the wrong direction
1. Is the connected as shown in the wiring diagram? Check the wiring diagram of page 6 again.
2. The gearhead output shaft's rotation direction differs depending on the gearheads deceleration ratio.
Refer to the gearhead operation manual.
3. For a single-phase motor, is the provided capacitor connected as shown in the wiring diagram of
4. Are you looking at the motor from the wrong side?
Rotation is defined as viewed from the output shaftside.
The motor becomes extraordinarily
hot (motor case temperature
exceeds 90
°
C (194
°
F))
1. Is the correct voltage being supplied to the motor?
2. Does the ambient temperature exceed the specified range?
3. For a single-phase motor, is the provided capacitor connected as shown in the wiring diagram of
The motor makes a strange noise
1. For separate type, or after disassembling the motor and gearhead, are the motor and gearhead
correctly fastened? Refer to the operating manual of gearhead.
2. Is the coupled gearhead the same pinion type as the motor shaft?
