HTL-INCREMENTAL ENCODER SERIES SENC
Incremental encoders are the simplest and most commonly used type of encoder. They are suitable for monitoring speed, position, and direction of rotation. They can be connected to common PLC and PC control systems and are a very robust fundamental element of industrial control systems.
SERIES SENC
Automation systems often require a high level of risk minimization. In such systems, equipment with functional safety can be part of the solution. Wieland offers encoders with functional safety for almost any application or electrical interface requirement. These encoders are rated SIL3 (PLe) and enable safe operation in setup, production, and maintenance modes, significantly reducing operational risks.
FEATURES OF THE
SAFE ENCODERS SENC
- Speed or position monitoring up to SIL 3 and PL e for 1 axis, and up to SIL 2 and PL d for 2 axes
- Special form fit with positive lock for hollow shaft
- Compact 58 mm flange size with minimal space requirement in the machine
- Flexible mounting options with hollow shaft, solid shaft, radial or axial connector
- Compatible HTL output for fast safe inputs of the samos® PRO MOTION safety controller
- Resolutions of 360 ppr and 1024 ppr
- PUR encoder cable resistant to oil, UV, ozone, and solvents
- More than 100,000 hours of operational life
- Maximum peak speed of 9000 RPM and continuous speed of 4000 RPM
DESIGNED FOR MAXIMUM ROBUSTNESS AND HIGHEST SAFETY
Safe drive through keyed connection.
Robust mechanical design with an additional bearing in the cover.
A unique device for through hollow shafts that effectively prevents slipping with locking pins.
APPLICATIONS WITH SAMOS® PRO MOTION
- Safe speed, direction of rotation, or position monitoring according to EN/IEC 61800-5-2
- Standstill monitoring during commissioning or maintenance
- Safe direction detection (SDI) for rollers, gate systems, or machines
- Safely limited speed (SLS) during setup operation
- Safely limited position (SLP) for rotary or linear axes
ARCHITECTURE EXAMPLES
The integration of encoders for speed monitoring into a safety architecture can be achieved in various configurations. Depending on the required safety level and/or existing hardware, we present different solutions below.
NOTE
The use of safety encoders in a safety application requires external monitoring of the encoder signals.
The safety modules offered by Wieland meet these requirements transparently for the user.
STANDARD INSTALLATION
WITHOUT SIL CERTIFICATION
Safety level: 0
SOLUTION FOR
MODULAR SAFETY
Safety level: up to SIL 3/PL e
Achieving Compliance for an Existing System
Seamless Integration: ⊕⊕⊕
Cost-effective Solution: ⊕⊕⊕
New Design
Seamless Integration: ⊕⊕
Cost-effective Solution: ⊕⊕
SOLUTION FOR
INTEGRATED SAFETY
Safety level: up to SIL 3/PL e
Achieving Compliance for an Existing System
Seamless Integration: ⊕
Cost-effective Solution: ⊕
New Design
Seamless Integration: ⊕⊕⊕
Cost-effective Solution: ⊕⊕⊕
VARIANTS
with solid shaft
with hollow shaft
ACCESSORIES FOR SENC ENCODERS
Torque supports provide a high degree of rotational stability to prevent the encoder from rotating with the shaft. Flange adapters are used to flange-mount the encoder to a motor.
With reducer sleeves, you can reduce the diameter of a hollow shaft encoder. PUR encoder cables with M23 connectors (encoder-side) and open wires (control-side) offer high flexibility, robustness, and resistance.
TECHNICAL DATA
Detection of positional or angular changes via square-wave pulses using photoelectric scanning.
Detection of positional or angular changes through square-wave pulses using photoelectric scanning.
24 V DC
24 V DC
11 – 30 V DC
11 – 30 V DC
100 mA no-load current
100 mA no-load current
Digital HTL Signals (11-30 V DC)
Digital HTL Signals (11-30 V DC)
A, A/, B, B/ for safe incremental pulses
A, A/, B, B/ for safe incremental pulses
A: gray, A/: pink, B: brown, B/: green, 0: red, 0/: black, +V: blue and green/brown, 0V: white and white/green
A: gray, A/: pink, B: brown, B/: green, 0: red, 0/: black, +V: blue and green/brown, 0V: white and white/green
360 ppm and 1024 ppm
360 ppm and 1024 ppm
40 mA
40 mA
58 mm
58 mm
Solid shaft
Hollow shaft
10mm
14mm
Powder-coated zinc die-cast
Powder-coated zinc die-cast
Aluminum
Aluminum
AISI 303 stainless steel
AISI 303 stainless steel
Series 6800 – sealed
Series 6803 – sealed
Axial: 40 N, Radial: 80 N
Axial: 20 N, Radial: 40 N
Moment of inertia of the shaft
Less than 2800 g.mm²
Less than 2800 g.mm²
5 / 35 mN.m
10 / 85 mN.m
9,000 RPM
9,000 RPM
Maximum continuous speed
6,000 RPM
4,000 RPM
Greater than 29.7 x 109 revolutions / 82,365 hours
Greater than 24 x 109 revolutions / 100,000 hours
0.300 kg
0.280 kg
IP65
IP65
-25°C to +85°C / -20°C to +85°C
-25°C to +85°C / -20°C to +85°C
EN/ IEC 61508, IEC 13849-1, IEC 61800-5-2, IEC 62061
EN/ IEC 61508, IEC 13849-1, IEC 61800-5-2, IEC 62061
CE, TüV, cULus Listed
CE, TüV, cULus Listed
CAREFREE TO CE MARKING -
WITH THE WIELAND SAFETY EXPERTS
Safety has been our daily business – for more than 30 years. On the way to CE marking and safe operation, we are your reliable partner and contribute our experience to your project. Whether training or consulting: We put together your individual all-round carefree package for thestandard-compliant implementation of your machines. We support manufacturers and operators either in specific sub-steps such as inspection and overrun measurement, risk assessment of machines or validation of safety functions according to EN ISO 13849-2, or we accompany them holistically through the CE process up to CE conformity assessment according to machine directives.
