SME120/SME125 Sensor Modules External Siemens

Обзор



SME120/SME125 Sensor Module External

The SME120/SME125 Sensor Modules External are encoder evaluation units with degree of protection IP67, especially suitable for use in linear and torque motor applications. They can be installed close to the motor systems and encoders in the machine.

Sensor Modules External evaluate the encoder signals and motor temperature sensors specifically and convert the information obtained for DRIVE‑CLiQ. The motor temperature signals are safely electrically separated.

A Hall-effect sensor box can be connected for the SME120 to determine the commutation position of a linear motor.

Neither motor nor encoder data are saved in the SME120/SME125.

The SME120 and SME125 can be operated on Control Units with firmware release V2.4 and later.

The following encoder signals can be evaluated depending on the type of Sensor Module:

  • Incremental encoder sin/cos 1 Vpp
  • Absolute encoder EnDat 2.1
  • SSI absolute encoder 1) with sin/cos 1 Vpp incremental signals, but without reference signal

The motor temperature can also be detected using KTY84‑130 or PTC thermistors.

1) For SME125, only SSI encoders with 5 V supply voltage.

Дизайн



SME120/SME125 Sensor Modules External feature the following connections and interfaces as standard:

  • 1 encoder connection via circular connector
  • 1 temperature sensor connection vai circular connector
  • 1 Hall-effect sensor connection via circular connector (SME120 only)
  • 1 DRIVE‑CLiQ interface with integrated 24 V DC electronics power supply from the Control Unit or Motor Module
  • 1 PE (protective earth) connection

Технические данные



 

SME120 Sensor Module External

SME125 Sensor Module External

 

6SL3055-0AA00-5JA3

6SL3055-0AA00-5KA3

Encoders

 

  • Incremental encoder sin/cos 1 Vpp
    with 5 V power supply
  • Absolute encoder EnDat
    with 5 V power supply
  • SSI with incremental encoder sin/cos 1 Vpp
    with 5 V power supply

Signal subdivision

(interpolation)

 

≤ 16384 times (14 bit)

≤ 16384 times (14 bit)

Max. encoder frequency that can be evaluated

kHz

≤ 500

≤ 500

SSI/EnDat 2.1 baud rate

kHz

–

100

Measuring system interface

 

12-pin M23 circular connector

17-pin M23 circular connector

Temperature sensor input

 

6-pin M17 circular connector

6-pin M17 circular connector

Hall-effect sensor input

 

9-pin M23 circular connector

–

Output

 

IP67 DRIVE‑CLiQ connector

IP67 DRIVE‑CLiQ connector

Power requirement, max.

at 24 V DC,
not taking encoder into account

A

0.16

0.16

  • Current carrying capacity of the encoder supply,
    for measuring system (at 5 V DC) and, where applicable, including Hall-effect sensor box

A

0.35

0.35

  • Conductor cross-section

 

Acc. to connector contacts

Acc. to connector contacts

  • Protection

 

Via DRIVE‑CLiQ power supply source

Via DRIVE‑CLiQ power supply source

Power loss

W

≤ 4.5

≤ 4.5

PE connection

 

M4 screw/1.8 Nm

M4 screw/1.8 Nm

Cable length, max.

 

 

 

  • To measuring system 1)/ temperature sensor

m (ft)

3 (9.84)

3 (9.84)

  • To automatic speed control

m (ft)

100 (328)

100 (328)

Degree of protection

 

IP67

IP67

Dimensions

 

 

 

  • Width

mm (in)

117.6 (4.63)

117.6 (4.63)

  • Height

mm (in)

44 (1.73)

44 (1.73)

  • Depth

mm (in)

127 (5.00)

127 (5.00)

Weight, approx.

kg (lb)

0.7 (1.5)

0.7 (1.5)

Approvals, according to

 

cULus

cULus



1) The maximum cable length for the encoder system interface depends on the current consumption of the encoder system and the cross-section of the wires in the cable. However, the maximum length is 10 m (32.8 ft)(For further details, see the Equipment Manual SINAMICS S120 Control Units and supplementary system components).