Oriental motor BLHM Series - Precautions for Use; Checking the Product; Rotation Direction

2
Checking the product
This section explains the items you should check, as well as the name and
function of each part.

Package contents
Verify that the items listed below are included.
Report any missing or damaged items to the branch or sales oce from which
you purchased the product.
z
Geared type, round shaft type
□
Motor ...............................................................1 pc
(the geared type is a motor with a gearhead)
□
Operating Manual (this document) ......1 pc
z
Combination type-parallel shaft gearhead
□
Motor ...............................................................1 pc
(a gearhead is pre-assembled)
□
Mounting screw set ....................................1 set
(hexagonal socket head screw, plain washer, spring washer, nut each 4 pcs, parallel key 1pc)
□
Operating Manual (this document) ......1 pc
z
Combination type-hollow shaft at gearhead
□
Motor ...............................................................1 pc
(a gearhead is pre-assembled)
□
Mounting screw set ....................................1 set
(hexagonal socket head screw, plain washer, spring washer, nut each 4 pcs, parallel key 1pc)
□
Safety cover set ............................................1 set
(safety cover 1 pc, mounting screw for safety cover 2 pcs)
□
Operating Manual (this document) ......1 pc

Model
Verify the model name of the purchased product against the model shown on
the package label.
Check the motor model and the gearhead model against the model name
shown on their nameplates, respectively.
Tell us the model name, product serial number, and manufacturing date when
you contact us.

The box (
o
) in the model name indicates a number representing the gear
ratio.
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Geared type
Output power Model
15 W
BLHM015K-
o
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Combination type-parallel shaft gearhead
Output power Model

Motor model

Gearhead
model
30 W
BLHM230KC-
o
BLHM230KC-GFS GFS2G
o
50 W
BLHM450KC-
o
BLHM450KC-GFS GFS4G
o
100 W
BLHM5100KC-
o
BLHM5100KC-GFS GFS5G
o

For the lead wire type, "
KC
" of the model and motor model are replaced by "
K
".
z
Combination type-hollow shaft at gearhead
Output power Model

Motor model

Gearhead
model
30 W
BLHM230KC-
o
FR BLHM230KC-GFS GFS2G
o
FR
50 W
BLHM450KC-
o
FR BLHM450KC-GFS GFS4G
o
FR
100 W
BLHM5100KC-
o
FR BLHM5100KC-GFS GFS5G
o
FR

For the lead wire type, "
KC
" of the model and motor model are replaced by "
K
".
z
Round shaft type
Output power Model

15 W
BLHM015K-A
30 W
BLHM230KC-A
50 W
BLHM450KC-A
100 W
BLHM5100KC-A

For the lead wire type, "
KC
" of the model is replaced by "
K
" (except for
BLHM015
type).
Precautions for use
This section explains limitations and requirements the user should consider
when using the product.
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Be sure to match the motor output power with the driver output
power.
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Connecting the motor and driver
Use a connection cable (sold separately) when extending the wiring distance
between the motor and the driver. The maximum extension distance including
the length of the motor cable should be 2 m (6.6 ft.).
z
Do not perform gravitational operation (vertical drive)
If this product is performed operation (i.e. gravitational operation) in which the
motor output shaft is turned from the load side, the motor speed cannot be
controlled. In addition, gravitational operation will cause the primary inverter
voltage of the driver to exceed the permissible value, thereby triggering the
protective function and causing the motor to coast to a stop. If this happens,
there is a possibility that the load will drop.
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Grease measures
On rare occasions, grease may ooze out from the gearhead. If there is concern
over possible environmental contamination resulting from the leakage of
grease, check for grease stains during regular inspections. Alternatively, install
an oil pan or other device to prevent damage resulting from contamination.
Grease leakage may lead to problems in the user’s equipment or products.
z
Apply grease to the hollow output shaft of a hollow shaft at
gearhead
Apply grease (molybdenum disulde grease, etc.) on the surface of the load
shaft and inner walls of the hollow output shaft to prevent seizure.
z
Caution when using in low temperature environment
When an ambient temperature is low, since the load torque may increase by
the oil seal or viscosity increment of grease used in the gearhead, the output
torque may decrease or the overload alarm may generate. However, as time
passes, the oil seal or grease is warmed up, and the motor can be operated
without generating the overload alarm.
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Rotation direction
For the rotation direction of the motor output shaft,
rotation in the clockwise direction when viewed from the
motor output shaft side represents "CW" and that in the
counterclockwise direction represents "CCW.”
CC
W
CW

Geared type, combination type-parallel shaft gearhead
The rotation direction of the gearhead output shaft may vary with that of the
motor output shaft depending on the gear ratio of the gearhead.
Geared type (15 W)
Gear ratio Rotation direction of the gearhead output shaft
5
,
10
,
15
,
50
,
100
Same direction as the motor
20
,
30
Opposite direction to the motor
Combination type-parallel shaft gearhead
Gear ratio Rotation direction of the gearhead output shaft
5
,
10
,
15
,
20
,
200
Same direction as the motor
30
,
50
,
100
Opposite direction to the motor

Combination type-hollow shaft at gearhead
At all gear ratios, the output shaft rotates in the opposite direction to the motor
as viewed from the gearhead front face.
With a combination type-hollow shaft at gearhead, the rotation direction
viewed from the gearhead front face is dierent from that viewed from the
gearhead rear face. Check with the gure below.
Viewed from Front Viewed from Rear
CW
CCW
CW
CCW