SIEMENS
SINAMICS S150 NEMA
Engineering Information
3
Siemens D21.7
(Part 2) – 2015
3/14
SMC20 Sensor Module Cabinet-Mounted
Encoders which can be
evaluated
• Incremental encoder
sin/cos 1 V
pp
• EnDat absolute encoder
• SSI encoder with
incremental mental 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.
16,384 times (14 bit)
• SSI baud rate
100kBaud
• Cable length to encoder, max.
426 ft (130 m)
PE connection
M4 screw
Conformity
CE
Approvals, according to
cULus
Design
SMC20 Sensor Module (option K48)
The SMC20 Sensor Module Cabinet-Mounted (
option K48
)
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
• EnDat absolute encoder
• SSI encoder with TTL/HTL incremental signals sin/cos 1 V
pp
(firmware version 2.4 and later)
• SSI encoder without incremental signals
The motor temperature can also be detected with KTY84-130
or PTC thermistors.
The SMC20 Sensor Module Cabinet-Mounted features the
following interfaces as standard:
• 1 encoder connection including motor temperature
detection (KTY84-130 or PTC) via SUB-D connector
or terminals
The status of the SMC20 Sensor Module Cabinet-Mounted is
indicated via a multi-color LED.
The signal cable shield can be connected via the encoder
system
and can also be connected to the SMC20 Sensor
Module Cabinet-Module via shield connection terminal, e.g.
Phoenix Contact type SK8 or Weidmüller type KLBÜ CO 1.
Technical data