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Headquarters: SIKO GmbH Weihermattenweg 2 79256 Buchenbach Germany Phone+49 7661 394-0 info@siko-global.com

Wire-actuated encoder SG21

small design for rotary encoder mounting with 2000 mm measuring length

Compact wire-actuated encoder for rotary encoders with max. 36 mm diam. flange

Profile SG21:

Wire-actuated encoder for rotary encoder with max. Ø36 mm flange
Measurement lengths up to 2000 mm
Sturdy zinc die-cast housing, robust design, stable measuring rope (stainless steel)
Very compact design

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Mechanical data

Feature	Technical data	Additional information
Housing	zinc die-cast
Wire design	ø0.45 mm	steel wire (stainless), plastic coated
Extension force	≥2 N	T1 operating temperature
	≥11 N	T2 operating temperature
Measured distance/ rope drum revolution	100 mm
Weight	~0.2 kg

Electrical data

Rotary encoders suitable for the SG21 are featured in RotoLine catalogue 2. Depending on the output signals the following are suitable for…

Incremental outputs: IV2800
Absolute outputs: WV36M/SSI, WV36M/CAN

The technical specifications for these devices are given in the respective data sheet. A number of transmitter versions of various manufacturers can also be used.

System data

Feature	Technical data	Additional information
Repeat accuracy	±0.15 mm	per direction of approach
Travel speed	≤1 m/s

Ambient conditions

Feature	Technical data	Additional information
Ambient temperature	-10 … 80 °C	T1
	-40 … 80 °C	T2

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.

symbolic depiction

Scope of delivery

SG21
Mounting instructions

Ordering table

Feature	Order data	Specifications	Additional information
Rope fixture	AGW	wire suspension with thread
	HK	wire suspension with hook

Encoder type	BOG6	without encoder
	S6	a wide range of encoders can be used	see accessories

Position of electrical connection	C1	direction or wire outlet or axially	depending on installed encoder
	2	upward
	3	opposite the wire outlet
	4	downward
	O	without encoder

Operating temperature	DT1	-10 … +80 °C
Operating temperature	T2	-40 … +80 °C