Absolute encoder with SIL-CL3 certificate

Specifically developed for heavy industry the AMP(H) 41 (PROFIsafe
via PROFIBUS DP) and AMPN(H) 41 (PROFIsafe via PROFINET IO) are
certified to DIN EN 61508 up to Safety Integrity Level (SIL) CL3 and to
EN ISO 13849 up to Performance Level (PL) e. Utilising these
functionally safe encoders exempts the user from having to provide
separate verification of the functional safety of the position sensors.

Three
versions of the encoders are available: AMP 41 and AMPN 41 with solid
shaft (14mm diameter) as a flange (B5) and flange-foot version (B35) to
mount the encoder using a coupling as well as the AMPH 41 and AMPNH 41
with a continuous hollow shaft (20mm diameter) to mount the encoder
directly onto the drive shaft. The devices with a PROFIBUS interface and
those with a PROFINET interface use the PROFIsafe protocol for data
transmissions. The total resolution is 28 bit, 13 bit singleturn
resolution (8192 steps/revolution) as well as 15 bit multiturn
resolution (32,768 rotations). An additional incremental output offers
4,096 pulses.

Featuring extensive diagnostics functions for error
detection the certified functionally safe encoders are manufactured in
an audited development and manufacturing process to guarantee maximum
safety.

“In heavy industry it is imperative that high-performance
and robust construction are not mutually exclusive”, explains Thomas
Brandenburger, head of the Product Management department. The new
encoders were specifically developed for deployment in SIL 3
applications in heavy industry such as in steel and rolling mills, in
mining, in cranes and port systems as well as for general deployment in
applications in extremely harsh operating and environmental conditions.
Features such as a thick-walled aluminium casing, large ball bearings
with high dynamic load rating and corrosion-resistant material with an
additional protective coating ensure the encoders are ideal measuring
devices for heavy duty applications in operating temperatures from -25
°C to +70 °C. Furthermore, all devices are equipped with secure bolted
connections to prevent them working loose under vibration loads as well
as feather keys for form-fit shaft connections. For hollow-shaft
assemblies the robust, long torque bracket arm ensures a higher signal
quality. The available degree of protection up to IP66 and the quality
of the materials used mean the absolute encoders are also suitable for
deployment in salt-laden environments.