2TLC172188M0201, rev. H
14
www.abb.com/lowvoltage
2012-01-03
3.6
SM7 – Rotating transducer
Application
The transducer SM7 is used for stop timing of rotational machinery parts (turning machine, paper machinery etc.).
The arms of the stand for SM7 are moved to a suitable position to ensure that the wheel is applied to the rotating
part of the machinery. Turning the selector on the stand activates the magnetic foot. Maximum speed is 5 m/s,
which equals 3000 rpm for the wheel.
In order to achieve the best results the axis of the wheel should be aligned with the axis of the rotating part. The
rotating part should be cleaned to prevent slip and disturbances from dirt.
The connection cable of SM7 is connected to the encoder connector (I8) on Smart Logger.
Operation
The transducer utilises a digital incremental pulse encoder with a resolution of 10 pulses/mm. Its two-channel
pulse-train is evaluated by Smart Logger to determine the position, speed of movement, and direction of the
moving machine part. Note that all presented units are linear and can be transformed to rotational units using the
circumference of the wheel (125 mm).
Technical specifications
Manufacturer:
ABB AB / JOKAB SAFETY
Designation:
SM7
Article number:
2TLA070300R0700
Operating voltage:
Supplied from Smart Logger
Resolution:
0.1 mm (10 pulses/mm)
Max. speed:
5 m/s
Size:
Approximately 90 x 50 x 400
mm (L x W x H) with stand
included.
Circumference of wheel:
125 mm
Weight:
1.7 kg including stand.
Colour:
Metallic
