Bosch Rexroth ctrlX SAFETY - EC;EU Directives; Overview of Functions and Characteristics; Characteristics of Integrated Safety Technology; Performance

4.3.4 EC/EU directives
Description Title
Directive 2006/42/EC Machinery Directive
Directive 2014/35/EU Low-Voltage Directive
Directive 2014/30/EU EMC Directive
Tab. 4-5: EC/EU directives
4.4 Overview of functions and characteristics
4.4.1 Characteristics of integrated safety technology
Introduction
This documentation describes the "Safe Torque Off" characteristics of the
integrated safety technology [pure hardware solution (optional safety
technology module "T0")].
Drive system with optional safety technology module "Safe Torque Off"
With the optional safety technology module "Safe Torque Off" ("T0"), the
energy supply to the motor can be safely interrupted. The drive in this case
cannot generate any torque/force and, as a consequence, it cannot generate
any dangerous movements, either (Safe Torque Off function).
The optional safety technology module "Safe Torque Off" features two 24 V
inputs for dual-channel selection and two outputs for dynamization.
4.4.2 Performance
Time response and reaction times
The reaction times of integrated safety technology of the optional safety
technology module "T0" are as follows:
Selection
of the STO safety functions, i.e.
transition from normal operation
("bb/Ab")
Deselection
of the STO safety functions, i.e.
transition to normal operation
("bb/Ab")
ctrlX DRIVE
with T0 option
up to 18 ms (preliminary) up to 18 ms (preliminary)
Tab. 4-6: Reaction times of integrated safety technology
The above-mentioned reaction times only apply to the safety
functions. To determine the total reaction time of the system, take
the following aspects, among other things, into account:
● When selecting the safety functions
– Time until at least a single-channel selection greater
than 1 ms exists
● When deselecting the safety functions
– Time until an error-free dual-channel deselection exists
– Reaction time of the drive system to drive enable
having been set (putting motor under current, releasing
the brake)
20/65
System overview
ctrlX SAFETY "Safe Torque Off" Safety Option in ctrlX DRIVE
Bosch Rexroth AG R911383774_Edition 03