INSTRUCTION MANUAL
SWD® Starter Kit
Page
21
on
30
V-EN_20072022_SWD® Starter Kit
7.
Safety features
7.1.
Overview of safety features
Safety features available from the
SWD®
Core
safety drives
The
SWD®
Core
includes safe engine shutdown features, as well as advanced safe speed monitoring features.
This exclusive integrated solution developed by ez-Wheel simplifies the machine architecture by avoiding the
need for external supervisory bodies and safety logics.
The engine shutdown functions include:
-
STO (Safe Torque Off): safe disconnection of motor torque
-
SBC (Safe Brake Control): safe braking engagement
Speed monitoring functions are based on a safety encoder integrated into the product and include:
-
SDI (Safe Direction): safe control of the direction of rotation
-
SLS (Safely Limited Speed): safe rotational speed limitation
These safety functions are implemented in accordance with IEC 61800-5-2 (functional safety requirements for
the development of safety drives) and according to the CiA/DS 402-4 profile for the safety functions of motor
controllers.
Safety features
Possible settings
Safe disconnection of engine
torque
Rearmament:
▪
automatic
▪
by request for acquittal
Braking configuration associated with the STO (Cf. SBC)
Safe braking engagement
Joint activation of the STO:
▪
from internal braking to
SWD®
Core
▪
an external electromechanical brake
▪
of both brakes simultaneously
Safe control of the direction
of rotation
Prohibition of the direction of rotation:
▪
positive or negative
▪
with two tolerance thresholds levels
Safe rotational speed
limitation
Prohibition of speeding:
▪
eight switchable throttling thresholds
▪
an adjustable trigger time
Refer to the Instruction Manual of the
SWD® Core
to get all details on the operation and configuration
of available safety features.
STO
SBC
SDI
SLS
STO
SBC
SLS
SDI
