SIEMENS
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Siemens NC 82 · 2017
SINAMICS S120 drive system
Supplementary system components
Encoder system connection
> SMC30 Sensor Module Cabinet-Mounted
4
■
Overview
SMC30 Sensor Module Cabinet-Mounted
The SMC30 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
SMC30.
The following encoder signals can be evaluated:
•
Incremental encoders TTL/HTL with/without open-circuit
detection (open-circuit detection is only available with bipolar
signals)
•
SSI encoder with TTL/HTL incremental signals
•
SSI encoder without incremental signals
The motor temperature can also be detected using a
PTC thermistor.
■
Design
The SMC30 Sensor Module Cabinet-Mounted features the
following connections and interfaces as standard:
•
1 encoder connection including motor temperature sensing
either via SUB-D connector or via terminals
•
1 DRIVE-CLiQ interface
•
1 connection for the electronics power supply via the 24 V DC
supply connector
•
1 PE/ground connection
The status of the SMC30 Sensor Module Cabinet-Mounted is
indicated using a multi-color LED.
The SMC30 Sensor Module Cabinet-Mounted can be snapped
onto a TH 35 standard mounting rail in accordance with
EN 60715 (IEC 60715).
The maximum encoder cable length between SMC30 modules
and encoders is 100 m. For HTL encoders, this length can be
increased to 300 m if the A+/A- and B+/B- signals are evaluated
and the power supply cable has a minimum cross-section of
0.5 mm
2
.
The signal cable shield can be connected to the SMC30 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.
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Integration
SMC30 Sensor Modules Cabinet-Mounted communicate with a
Control Unit via DRIVE-CLiQ.
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Technical specifications
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Selection and ordering data
Article No.
6SL3055-0AA00-5CA2
Product brand name
SINAMICS
Product type designation
S120
Product designation
SMC30
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 TTL/HTL
• SSI encoder with
TTL/HTL incremental signals
• SSI encoder without
incremental signals
• Input impedance
- TTL
-
HTL, maximum
570
Ω
16 mA
• Encoder supply DC
24 V/0.35 A or 5 V/0.35 A
• Encoder frequency, maximum
300 kHz
• SSI baud rate
100 … 1000 kBaud
• Resolution absolute position SSI
30 bit
Cable length, maximum
• TTL encoder
100 m
only bipolar signals permitted
1)
• HTL encoder
100 m
for unipolar signals
300 m
for bipolar signals
1)
• SSI encoder
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
SMC30 Sensor Module
Cabinet-Mounted
Without DRIVE-CLiQ cable
6SL3055-0AA00-5CA2
1)
Signal cables twisted in pairs and shielded.
© Siemens AG 2016