bnp-b2365(eng)b.pdf - 第23页
1. Installation 1 - 7 1-1-7 Cable stress [1] Sufficiently consider the cable clamping me thod so that bending stress and the stress from the cable's own weight is not applied on the cable connection part. [2] In app…
1. Installation
1 - 6
[4] Do not use the unit with the cable submerged in oil or
water.
(Refer to right drawing.)
[5] Make sure that oil and water do not flow along the cable
into the motor or detector. (Refer to right drawing.)
[6] When installing on the top of the shaft end, make sure
that oil from the gear box, etc., does not enter the
servomotor. The servomotor does not have a waterproof
structure.
Cover
Oil water
<Fault> Capillary tube phenomenon
Servomotor
<Fa ult> Respiration
Cover
Servomotor
Servomotor
Gear
Lubricating oil
1. Installation
1 - 7
1-1-7 Cable stress
[1] Sufficiently consider the cable clamping method so that bending stress and the stress from the
cable's own weight is not applied on the cable connection part.
[2] In applications where the servomotor moves, make sure that excessive stress is not applied on the
cable.
If the detector cable and servomotor wiring are stored in a cable bear and the servomotor moves,
make sure that the cable bending part is within the range of the optional detector cable.
Fix the detector cable and power cable enclosed with the servomotor.
[3] Make sure that the cable sheathes will not be cut by sharp cutting chips, worn by contacting the
machine corners, or stepped on by workers or vehicles.
The bending life of the detector cable is as shown below. Regard this with a slight allowance. If the
servomotor/spindle motor is installed on a machine that moves, make the bending radius as large as
possible.
4 7 10 20 40 70 100 200
1×10
8
5×10
7
2×10
7
1×10
7
5×10
6
2×10
6
1×10
6
5×10
5
2×10
5
1×10
5
5×10
4
3×10
4
Detector cable bending life
(Material of Mits ubishi optional detector cable: A14B2343)
(Note)
The values in this graph are calculat ed values and are not guaranteed.
Bending radius (mm )
No. of bends (times)
4 7 10 20 40 70 100 200
3 x 10
4
5 x 10
4
1 x 10
5
2 x 10
5
5 x 10
5
1 x 10
6
2 x 10
6
5 x 10
6
1 x 10
7
2 x 10
7
5 x 10
7
1 x 10
8
1. Installation
1 - 8
1-2 Installation of spindle motor
CAUTION
1. Do not hold the cables, axis or detector when transporting the motor. Failure to
observe this could lead to faults or injuries.
2. Securely fix the motor to the machine. Insufficient fixing could lead to the
motor deviating during operation. Failure to observe this could lead to
injuries.
3. When coupling to a servomotor shaft end, do not apply an impact by
hammering, etc. The detector could be damaged.
4. Never touch the rotary sections of the motor during operations. Install a
cover, etc., on the shaft.
5. Do not apply a load exceeding the tolerable load onto the servomotor shaft.
The shaft could break. Failure to observe this could lead to injuries.
6. Do not connect or disconnect any of the connectors while the power is ON.
1-2-1 Environmental conditions
Environment Conditions
Ambient temperature 0°C to +40°C (with no freezing)
Ambient humidity 90%RH or less (with no dew condensation)
Storage temperature -20°C to +65°C (with no freezing)
Storage humidity 90%RH or less (with no dew condensation)
At mosphere
Indoors (Where unit is not subject to direct sunlight)
No corrosive gases, flammable gases, oil mist or dust
Altitude
Operation/storage: 1000m or less above sea level
Transportation: 10000m or less above sea level
(Note) Refer to each spindle motor specifications for details on the spindle motor vibration
conditions.