bnp-b2365(eng)b.pdf - 第36页

1. Installation 1 - 20 [3] Keep the deviation of the sensor center and detection gear center to ± 0.25mm or less. If the center deviation cannot be directly measured, set so that the dimension from the sensor installing …

1. Installation

1 - 19

1-4-3 Spindle end PLG

(1) Part configuration

The detector is configured of an encoder (Sensor section and PCB section) and detection gears.

The encoder section can be separated with an intermediate connector, but a type with the same

serial No. must be used in combination. The serial No. is indicated on the intermediate connector of

the sensor section and the output connector of the PCB section.

VR1

VR2

VR3

VR4

VR5

Detection

gears

Sensor section

PCB section

Intermediate

connecto

Output connector

Serial No. indication

Encoder

Spindle end PLG

These are precision parts, and require care when handling. Do not apply an excessive force on the

sensor's detection surface, as this could result in faults. Do not pull and apply a load on the lead

wires. Make sure that foreign matters (iron chips, etc.) do not get on the sensor's detection surface

or detection gears. If any foreign matter should get on these parts, carefully remove while taking

care not to damage the parts. When handling the detection gears, take care not to damage or

deform the teeth.

(2) Installing the detection gears and sensor section

[1] Install the detection gears so that the first gear's teeth side (Z phase) face the sensor's lead

side.

[2] The detection gears and shaft or sleeve should be fixed with shrinkage fitting. Refer to the

following table for the shrinkage fitting values. The detection gears should be heated evenly

between 120 and 150°C using an electric furnace, etc.

Detection gear shrinkage fitting values

Detection gear specifications

Part type

No. of teeth

Outer diameter

(mm)

Inner diameter

(mm)

Shrinkage fitting

(mm)

MU1450N2137 128 ø52 ø40 0.02 to 0.04

MU1450N2730 180 ø72.8 ø55 0.03 to 0.055

MU1450N2236 256 ø103.2 ø80 0.03 to 0.055

MU1450N2534 512 ø205.6 ø140 0.05 to 0.085

1. Installation

1 - 20

[3] Keep the deviation of the sensor center and detection

gear center to ±0.25mm or less. If the center deviation

cannot be directly measured, set so that the dimension

from the sensor installing surface to the edge of the

detection gears is 22.5±0.25mm.

[4] Keep the deflection of the outer diameter, when the

detection gears are installed on the shaft, to 0.02mm or

less.

[5] To remove a detection gear fixed with shrinkage fitting,

use the screw holes opened in the axial direction for

pulling (two M5 screw holes or two M8 screw holes), or

push the end with a jig. Carry out this work carefully.

Applying excessive force when pulling out the gears

could cause the inner diameter of the detection gears to

deform.

[6] Before reusing detection gears which have been

removed, always measure the inner diameter dimensions,

and carefully check that the inner diameter is not

deformed, and that the sufficient tightening amount can

be secured. Do not reuse the detection gears if the inner

diameter is deformed, or if any abnormality such as

damage to the teeth is found.

[7] A notched fitting section and mounting screw hole are

provided on the machine as shown in the following

drawing. Contact the R section of the sensor installation

seat against this and, install the sensor. The outline dimensions of the notched fitting section

are shown in the following table.

Installing the sensor section

Encoder part type

Sensor installation seat's

R dimensions (mm)

Notched fitting section's

outer diameter (mm)

TS1860N2275 +0.200

TS1860N2276

R35.5 ø71

+0.180

TS1860N2777 +0.200

TS1860N2775

R45 ø90

+0.180

TS1860N2171 +0.200

TS1860N2174

R61 ø122

+0.175

TS1860N2571 +0.200

TS1860N2572

R112.5 ø225

+0.170

16.5mm

22.5mm

±.25mm

Sensor installation surface

Sensor installation seat

Lead wire

First tooth

Installing the detection gears

1. Installation

1 - 21

[8] With the sensor installation seat's R section butted against the notched fitting section, fix the

sensor installation seat with a mounting screw (M5 x 0.8 screws). A locking agent should be

applied on the mounting screw before it is tightened.

[9] When using the specifications (TS1860N2770,

TS1860N2776, TS1860N2183, TS1860N2187) with

installation plate (ring) for the sensor section,

provide a notched fitting section on the machine side

as shown on the right, and fit the sensor installation

plate's ø108H5 here. The gap does not need to be

adjusted when using the installation plate.

[10] Make sure that force is not constantly applied on the

sensor's lead wires.

(3) Installing the PCB section

[1] Install the PCB where it will not be subject to water or oil, etc.

[2] Drill two ø11mm or smaller installation seats, and fix the PCB with pan head screws (M5 × 0.8

screws).

[3] Provide a space of 25mm from the installation surface to treat the lead wires for the intermediate

connector.

[4] Select the minimum required length for the lead wires from the sensor to the intermediate

connector, and wire them as far away from other power wires as possible.

[5] Make sure that force is not constantly applied on the PCB lead wire connections.

[6] The check pins on the PCB could break if excessive force is applied.

Installing the sensor with

Installation plate (ring)

ø 108

-0.005

-0.020

[

Unit: mm

]

3.5mm or less

Butt the R section of the sensor installation seat

ainst here

Butt the back side of the sensor installation

seat against here

Notched section's

outer diameter

2-M5

0.8 screw

Notched section's

outer diameter

29mm

Outline

drawing

designated

dimensions

Shape of notched fitting section