Headquarters: SIKO GmbH Weihermattenweg 2 79256 Buchenbach Germany Phone+49 7661 394-0

Wire-actuated encoder SG32

robust design and redundant sensor system with 3000 mm measuring length

Very robust wire-actuated encoder in compact design for numerous areas of application including crane construction, stage construction, warehousing technology, etc., up to a measuring length of 3000 mm, with signal output in redundant design. Easy, universally changeable installation.

Profile SG32:

  • Robust design
  • Measuring lengths up to 3000 mm
  • Analogue signal output in redundant design (2x 4…20 mA or potentiometer)
  • Variable mounting options
  • Lockable vent and water drain holes
  • Very robust measuring rope (stainless steel)
  • IP65 protection category
  • M12 plug connection
Functional Safety PLd analog

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Mechanical data
FeatureTechnical dataAdditional information
Housingzinc die-cast, plastic
Wire designø0.61 mm

steel wire (stainless), plastic coated

ø0.6 mm

steel wire (stainless)

Extension force≥3 N
Absolute accuracy±0.35 %

relating to measuring ranges (mm)

Weight~0.5 kg
Electrical data
Encoder potentiometer
FeatureTechnical dataAdditional information
Operating voltage≤30 V

power loss on the potentiometer <1 W

Power rating2 W at 70 °C
Resistance10 kΩ
Resistance tolerance±5 %
Standard terminal resistance0.5 % or 1 Ω

(the higher value applies in each case)

Linearity tolerance±0.25 %
Type of connection

M12 plug connector (A-coded)

8-pole, 1x pin

Transducer, power output
FeatureTechnical dataAdditional information
Operating voltage10 … 30 V DC

with load impedance ≤500 Ω voltage between I+ and I-

Output current4 … 20 mA


4/20mA 4/20mA

20 … 4 mA


20/4mA 20/4mA

4 ... 20 mA, 20 ... 4 mA

4/20mA 20/4mA

Type of connection

M12 plug connector (A-coded)

8-pole, 1x pin

Measurement transducers permit optimum adjustment of the output current and output voltage to the measuring range. The measurement transducer is pre-set at the works so that an output signal of 4 … 20 mA or 20 … 4 mA is available. 

System data
FeatureTechnical dataAdditional information
Repeat accuracy ±0.15 mm

per direction of approach

Travel speed≤800 mm/s
Failure rate166.7 year(s)

at 60 °C (MTBF)

Ambient conditions
FeatureTechnical dataAdditional information
Ambient temperature-40 … 80 °C
Protection category

IP65 (for electronic unit)

EN 60529, Certonal-coated electronic unit

Wire-actuated encoder SG32
Pin assignment
Potentiometer pin assignment
SignalPINAdditional information
Po 1 Potentiometer 1
Po 2 Potentiometer 2
S 3 Potentiometer 2
Pe 4 Potentiometer 2
nc 5  
Pe 6 Potentiometer 1
S 7 Potentiometer 1
nc 8  
Transducer pin assignment
SignalPinAdditional information
I+ 1 Transducer 1
I+ 2 Transducer 2
nc 3  
I- 4 Transducer 2
nc 5  
I- 6 Transducer 1
nc 7  
nc 8  
Hint for mounting

When securing the wire it must be ensured that the wire is straight and vertical in relation to the wire outlet.  Recommendation: Only select the starting position after an unwound length of approx. 5 mm. This prevents the wire hitting the end stop when it is rewound. 

SG32 Hint for mounting
symbolic depiction

Scope of delivery
  • SG32
  • Mounting instructions
Ordering table
Feature Order data Specifications Additional information
Measuring range
2000, 2500, 3000 in mm
Encoder type
2x potentiometer 10 kΩ
2x transducers 20…4 mA
2x transducers 4…20 mA counter-rotating
2x transducers 4…20 mA
Position of electrical connection
direction of wire outlet
opposite the wire outlet
Series impedance
0 Ωonly for P10_10 encoder type
1.2 kΩonly for P10_10 encoder type
Ordering key
additional accessoriesOrdering key
Mating connector,

8-pole, socket