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Siemens D 21.4 · 2017
SINAMICS S120 drive system
Supplementary system components
Encoder system connection
> SMC30 Sensor Module Cabinet-Mounted
7
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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 sensed using a PTC
thermistor KTY84-130, Pt1000 or PTC.
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Design
The SMC30 Sensor Module Cabinet-Mounted features the
following connections and interfaces as standard:
•
1 encoder connection including motor temperature sensing
(KTY84-130, Pt1000 or PTC) either via D-sub connector or
via terminals
•
1 DRIVE-CLiQ interface
•
1 connection for the electronics power supply via the 24 V DC
supply connector
•
1 PE (protective earth) connection
The status of the SMC30 Sensor Module Cabinet-Mounted is
indicated via 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 (328 ft).. For HTL encoders, this length
can be increased to 300 m (984 ft) 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 as a strain relief
mechanism.
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Integration
SMC30 Sensor Modules Cabinet-Mounted communicate with a
Control Unit via DRIVE-CLiQ.
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Selection and ordering data
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Technical specifications
Description
Article No.
SMC30 Sensor Module Cabinet-Mounted
Without DRIVE-CLiQ cable
6SL3055-0AA00-5CA2
Accessories for re-ordering
Dust protection blanking plugs
(50 units)
For DRIVE-CLiQ port
6SL3066-4CA00-0AA0
SMC30 Sensor Module
Cabinet-Mounted
6SL3055-0AA00-5CA2
Current requirement, max.
at 24 V DC,
without taking encoder into account
0.2 A
• Conductor cross-section, max.
2.5 mm
2
• Fuse protection, max.
20 A
Power loss, max.
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
570
Ω
-
HTL, max.
16 mA
• Encoder supply
24 V DC/0.35 A or
5 V DC/0.35 A
• Encoder frequency, max.
300 kHz
• SSI baud rate
100 ... 1000 kBaud
• Limiting frequency
300 kHz
• Resolution absolute position SSI
30 bits
• Cable length, max.
-
TTL encoder
100 m (328 ft) (only bipolar
signals permitted)
1)
-
HTL encoder
100 m (328 ft) for unipolar
signals
300 m (984 ft) for bipolar
signals
1)
-
SSI encoder
100 m (328 ft)
PE connection
M4 screw
Dimensions
• Width
30 mm (1.18 in)
• Height
150 mm (5.91 in)
• Depth
111 mm (4.37 in)
Weight, approx.
0.45 kg (0.99 lb)
Certificate of suitability
cULus
1)
Signal cables twisted in pairs and shielded.
© Siemens AG 2017