Siemens SLI-5310 Instrucciones de operaciones descargar pdf (Pagina 34)

0.05

A

Cx

T

1

T

2

0.05

A

b

$

X

1

,

X

2

34

Mechanical design types and mounting

Rotary encoders without integral bearing – ECI/EBI/EQI

The ECI/EBI/EQI inductive encoders are

without integral bearing. This means that

mounting and operating conditions

inﬂ uence the functional reserves of the

encoder. It is essential to ensure that the

speciﬁ ed mating dimensions and

tolerances are maintained in all operating

conditions (see Mounting Instructions).

The application analysis must result in

values within speciﬁ cation for all possible

operating conditions (particularly under

max. load and at minimum and maximum

operating temperature) and under

consideration of the signal amplitude

(inspection of scanning gap and mounting

tolerance at room temperature). This

applies particularly for the measured

• maximum radial runout of the motor

shaft

• maximum axial runout of the motor shaft

with respect to the mounting surface

• maximum and minimum scanning gap

(a) (also in combination) e.g.:

– The length relation of the motor shaft

and housing under temperature

inﬂ uence (T

1

; T

2

; À1; À2) depending on

the position of the ﬁ xed bearing (b)

– of the bearing play (C

X

)

– nondynamic shaft offsets due to load

(X

1

)

– the effect of engaging motor brakes

(X

2

)

The ECI/EBI 100 rotary encoders are

prealigned on a ﬂ at surface and then the

locked hollow shaft is slid onto the

measured shaft. The encoder is fastened

and the shaft clamped by axial screws.

The ECI/EBI/EQI 1100 inductive rotary

encoders are mounted as far as possible in

axial direction. The blind hollow shaft is

attached with a central screw. The stator of

the encoder is clamped against a shoulder

by two axial screws.

Mounting the ECI 119

Mounting the ECI/EQI

1100

Schematic

representation

ECI/EBI 100

Mounting aid for PCB

connector

Accessory

Mounting aid for removing the PCB

connector for ECI 1118 (EnDat 22), ECI 119,

ECN 11xx

ID 592818-01

To avoid damage to the cable, the pulling

force must be applied on the connector,

and not on the wires. For other encoders,

use tweezers or the mounting aid if

necessary.

Scanning gap a = 0.65±0.3 mm

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