SIEMENS
4/56
Siemens NC 82 · 2017
SINAMICS S120 drive system
Supplementary system components
Encoder system connection
> SMC20 Sensor Module Cabinet-Mounted
4
■
Overview
SMC20 Sensor Module Cabinet-Mounted
The SMC20 Sensor Module Cabinet-Mounted is required to
evaluate the encoder signals of motors without a DRIVE-CLiQ
interface. External encoders can also be connected via the
SMC20.
The following encoder signals can be evaluated:
•
Incremental encoder sin/cos 1 V
pp
•
Absolute encoder EnDat 2.1
•
SSI encoder with incremental signals sin/cos 1 V
pp
(firmware version V2.4 and later)
The motor temperature can also be detected using a
PTC thermistor.
■
Design
The SMC20 Sensor Module Cabinet-Mounted features the
following connections and interfaces as standard:
•
1 encoder connection including motor temperature detection
via SUB-D connector
•
1 DRIVE-CLiQ interface
•
1 connection for the electronics power supply via the 24 V DC
power supply connector
•
1 PE/ground connection
The status of the SMC20 Sensor Module Cabinet-Mounted is
indicated via a multi-color LED.
The SMC20 Sensor Module Cabinet-Mounted can be snapped
onto a TH 35 standard mounting rail in accordance with
EN 60715 (IEC 60715).
The signal cable shield is connected via the encoder system
connector and can also be connected to the SMC20 Sensor
Module Cabinet-Mounted via a shield connection terminal, e.g.
Phoenix Contact type SK8 or Weidmüller type KLBÜ CO 1.
The shield connection terminal must not be used for strain relief.
■
Integration
SMC20 Sensor Modules Cabinet-Mounted communicate with a
Control Unit via DRIVE-CLiQ.
■
Technical specifications
■
Selection and ordering data
Article No.
6SL3055-0AA00-5BA3
Product brand name
SINAMICS
Product type designation
S120
Product designation
SMC20
Sensor Module Cabinet-Mounted
Power requirement at 24 V DC,
maximum
without taking encoder into
account
0.2 A
• Conductor cross-section,
maximum
2.5 mm
2
• Fuse protection, maximum
20 A
Power loss, maximum
10 W
Encoders which can be evaluated
• Incremental encoder
sin/cos 1 V
pp
• Absolute encoder EnDat 2.1
• SSI encoder with incremental
signals sin/cos 1 V
pp
(firmware version V2.4 and later)
• Encoder supply DC
5 V/0.35 A
• Encoder frequency
incremental signals, maximum
500 kHz
•
Signal subdivision (interpolation),
maximum
16384 times (14 bit)
• SSI baud rate
100 kBaud
Cable length to encoder, maximum
100 m
PE connection
M4 screw
Width
30 mm
Height
150 mm
Depth
111 mm
Net weight
0.45 kg
Certificate of suitability
cULus
Description
Article No.
SINAMICS S120
SMC20 Sensor Module
Cabinet-Mounted
Without DRIVE-CLiQ cable
6SL3055-0AA00-5BA3
© Siemens AG 2016