SIEMENS
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Siemens D 31 · 2015
9
SINAMICS S110 servo drives
0.12 kW to 90 kW (0.16 hp to 125 hp)
Encoder system connection
> SMC20 Sensor Module Cabinet-Mounted
■
Overview
The SMC20 Sensor Module Cabinet-Mounted is required to
evaluate the encoders of motors without a DRIVE-CLiQ inter-
face. 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 2.4 and later)
The motor temperature can also be detected using KTY84-130
or PTC thermistors.
■
Design
The SMC20 Sensor Module Cabinet-Mounted features the
following interfaces as standard:
•
1 DRIVE-CLiQ interface
•
1 encoder connection, including motor temperature detection
(KTY84-130 or PTC) via SUB-D connector
•
1 connection for the electronics power supply via the 24 V DC
power supply connector
•
1 PE/protective conductor 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 acc. to 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.
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Integration
SMC20 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
■
More information
Risk of encoder failures by encoder signal disturbances
Frictional (static) electricity can occur if the belt and belt pulley
materials are unfavorably matched. This static electricity can
discharge over the motor shaft and encoder and cause spurious
encoder signals. A belt made of anti-static material (conductive
polyurethane compound) can be used to mitigate this risk.
Description
Article No.
SMC20 Sensor Module Cabinet-Mounted
Without DRIVE-CLiQ cable
6SL3055-0AA00-5BA3
SMC20 Sensor Module Cabinet-Mounted
6SL3055-0AA00-5BA3
Power requirement, max.
at 24 V DC,
not 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
sin/cos 1 V
pp
• Absolute encoder EnDat
• SSI encoder with
incremental signals
sin/cos 1 V
pp
(firmware
version 2.4 and later)
• Encoder supply
5 V DC/0.35 A
• Encoder frequency incremental signals,
max.
500 kHz
• Signal subdivision (interpolation), max.
16384 times (14 bit)
• SSI baud rate
100 kBaud
• Cable length to encoder, max.
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 (1 lb)
Approvals, according to
cULus
© Siemens AG 2014