7. Troubleshooting
When the motor is not functioning normally, perform an inspection covering the points listed in the table below.
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
The motor does not rotate
or
motor rotates at low speed
The motor rotate correctly
or properly
The motor rotates
in the wrong direction
The motor becomes extraordinarily
hot (motor case temperature
exceeds 90℃(194ºF) )
The motor makes a strange noise
Things to check
①Is the correct voltage being supplied to the Motor?
②Are lead wires properly and firmly connected?
③Is the load too large?
④If lead wires have been extended by using a terminal strip or terminal block, are the lead
wires properly and firmly connected at all points?
⑤For a single-phase motor is the provided capacitor connected as shown in the wiring
diagram of page 4?
①Are lead wires properly and firmly connected?
②If lead wires have been extended by using a terminal strip or terminal block, are the lead
wires properly and firmly connected at all points?
②For a single-phase motor is the provided capacitor connected as shown in the wiring
diagram of page 4 ?
①Is the connection as shown in the wiring diagram?
Check the wiring diagram of page 4 again.
②The gearhead output shaft’s rotation direction differs depending on the gearhead’s
deceleration ratio. Refer to the gearhead operation manual.
③For a single-phase motor is the provided capacitor connected as shown in the wiring
diagram of page 4 ?
④Are you looking at the motor from the wrong side?
Rotation is defined as viewed from the output shaftside.
①Is the correct voltage being supplied to the motor?
②Does the ambient temperature exceed the permissible range ?
③For a single-phase motor is the provided capacitor connected as shown in the wiring
diagram of page 4 ?
①Are the motor and gearhead correctly fastened? Refer to the gearhead operation manual.
②Is the coupled gearhead the same pinion type as the motor shaft?
5
6. Locked rotor burnout protection
This motor is equipped with one of two methods to prevent burning the motor as a result of abnormal heating .
■Thermal protection (TPTP211is 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 to a temp.
Always turn the power off before performing inspections.
Thermal protector activation range:
Power is turned off at 130℃(266ºF) ±5℃(9ºF)
Power is turned back on at 82℃(180ºF)±15℃(27ºF)
■Impedance protection (ZPis stamped on the motor name plate)
When the motor goes into locked rotor condition due to a malfunction, coil impedance rises, suppressing input to the motor and
protecting the motor coil from burnout.
Printed on Recycled Paper
・Characteristics, specifications and dimensions are subject to change without notice.
・Please contact your nearest ORIENTAL MOTOR office for further information.
ORIENTAL MOTOR U.S.A CORP.
Los Angeles Office Tel:(310)784-8200 Fax:(310)325-1076
San Jose Office Tel:(408)358-6900 Fax:(408)358-8200
Chicago Office Tel:(847)240-2649 Fax:(847)240-2753
Cincinnati Office Tel:(513)563-2722 Fax:(513)956-3183
Austin Office Tel:(512)918-9438 Fax:(512)335-5983
New York Office Tel:(973)359-1100 Fax:(973)359-1090
Boston Office Tel:(781)848-2426 Fax:(781)848-2617
Atlanta Office Tel:(770)716-2800 Fax:(770)719-8515
Canada Office Tel:(905)502-5333 Fax:(905)502-5444
Technical Support Line Tel:(800)468-3982
Available from 8:30 AM to 8:00 PM , Eastern Time
ORIENTAL MOTOR (EUROPA) GmbH
Headquarters and Düsseldorf Office
Tel:02131-95280Fax:02131-952899
Munich Office Tel:08131-59880 Fax:08131-598888
Hamburg Office Tel:04076-910443 Fax:04076-910445
ORIENTAL MOTOR (UK) LTD.
Tel:01252-519809 Fax:01252-547086
ORIENTAL MOTOR (FRANCE) SARL
Tel:01 47 86 97 50 Fax:01 47 82 45 16
ORIENTAL MOTOR ITALIA s. r. l
Tel:02-3390541 Fax:02-33910033
TAIWAN ORIENTAL MOTOR CO.,LTD.
Tel:(02)2299-9360 Fax:(02)2299-4173
SINGAPORE ORIENTAL MOTOR PTE LTD.
Tel:(745)7344 Fax:(745)9405
ORIENTAL MOTOR .KOREA CO.,LTD.
Tel:(02)632-9122 Fax:(02)679-4588
ORIENTAL MOTOR CO.,LTD.
Headquarters
Tel:(03)3835-0684 Fax:(03)3835-1890