Profibus-DP Absolute Encoder SAS/M58

Core components are sourced through a localized supply chain to support supply continuity and stable system operation. High-precision magnetic sensing technology supports both single-turn and multi-turn absolute encoder configurations. Supports the PROFIBUS-DP interface for fast and reliable data communication in industrial fieldbus systems. Single-turn resolution up to 16 bit and multi-turn resolution up to 14 bit for high-precision position measurement. High shock and vibration resistance with protection ratings up to IP66 ensures reliable operation in harsh industrial environments. Built-in reverse-polarity and short-circuit protection helps protect the encoder against wiring errors.

Product Specifications

Product Series	SAS/M58A	SAS/M58C
Shaft Type	Ø58 mm, Solid Shaft	Ø58 mm, Blind Hollow Shaft
Shaft Diameter	Ø6, 8, 10, 12, 14, 15 mm (Other shaft diameters available on request)
Housing Material	Aluminum (Stainless steel housing optional)
Communication Interface	PROFIBUS-DP
DP-V0 Functions	MS0, Freeze, Sync, Auto_Baud, Fail_Safe
Output Circuit	RS485-compliant line driver, optically isolated
Function	Single-turn or Multi-turn
Supply Voltage	10–30 VDC
Single-turn Resolution	13 bit / 8192; 16 bit / 65536
Number of Revolutions	1 revolution (single-turn); 4096 revolutions / 12 bit; up to 16384 revolutions / 14 bit
Power Consumption	≤1 W
Programmable Functions	Resolution, speed unit, preset (zero position), counting direction, limit switches
Transmission Rate	≤12 Mbit/s
Manual Settings	Address selector switches 0–99 and termination resistor switch (with terminal box)
Reverse Polarity Protection	Yes
Short-circuit Protection	Yes
Surge and ESD Protection	Yes
Operating Speed	3000 rpm
Shaft Load	Radial: 200 N; Axial: 100 N
Degree of Protection	IP65 or IP67
Starting Torque	<0.05 Nm
Operating Temperature	-40°C to +85°C
Storage Temperature	-40°C to +100°C
Shock Resistance	1000 m/s², 6 ms (100 g)
Vibration Resistance	20 g
Electrical Connection	3 × PG9 cable glands; 3 × M12 connectors
Connection Direction	Radial

Terminal Assignment

Signal	Assignment
⊥	Power supply ground
B (Left)	Data line B (input)
A (Left)	Data line A (input)
(-)	0 V
(+)	10–30 V
B (Right)	Data line B (output)
A (Right)	Data line A (output)
(-)	0 V
(+)	10–30 V
	The power supply only needs to be connected once, regardless of which terminal group is used. When the termination resistor is switched on, the outgoing bus connection is disconnected.

LED Indicators and Operating Principle

Slave Address Setting:

The slave address can be set using two rotary switches. The address range is 1–99, and each address may only be used once on the bus.

Termination Resistor Setting:

The termination resistor RT can be connected to the bus using the switch.

LED Indicators

Red LED	Green LED	Status Information / Possible Cause
Off	Off	No power supply
On	Flashing	Encoder is ready for operation, but no configuration data has been received after power-up. Possible causes: incorrect encoder address setting; encoder hardware type mismatch.
Flashing	On	Encoder is operating, but master lock-in has not been completed or correct configuration parameters have not been received.
On	Off	Encoder has not received any data from the master for a certain period of time. Possible cause: communication bus disconnected.
Off	On	Normal data exchange

SAS/M58A

SAS/M58B

SAS/M58C

SAS/M58D