Moog DM2020 Series User Manual

10.3.2 Characteristic Values According to CEI EN 62061
Hardware Feedback standard values according to CEI EN 62061: 2005 +A1:2013 +A2:2015:
Value Observations
Levels of integrity of security SIL 3
PFHd 9 x 10
-10
hours-1
Verification test interval 20 years
Software Feedback standard values according to CEI EN 62061: 2005 +A1:2013 +A2:2015:
Value Observations
Levels of integrity of security SIL 3
PFHd 9 x 10
-10
hours-1
Verification test interval 20 years
10.4 Safety Requirements
This section describes the requirements for the Safe Torque Off safety function.
10.4.1
F
ul
l
S
top
The Safe Torque Off safety function prevents unintended restart of a motor in
an arrest status. This
circuit can be used in the machine "Safe stop" function. When the motor is in the process of rotating,
the activation of the Safe Torque Off function generates an uncontrolled stop (Category 0 according
to
EN 60204-1: 2006). When prompted for a controlled stop category 1 according to EN 60204-1:
2006,
must be satisfied the condition of motor stop within predefined limits of deceleration or after a
delay
function of the application. The final machine must be able to stop the motor.
WARNING: Electrical hazard - AVERTISSEMENT: risque électrique
The DM2020 system and connected motor may present an electrical hazard if the
safety precautions are not observed, which may result in death or serious injury to
personnel, or damage to equipment.
Ø Observe the following safety precautions.
WARNING: Mechanical hazard - AVERTISSEMENT: risque mécanique.
The DM2020 system and connected motor may present a mechanical hazard if the
safety precautions are not observed, which may result in death or serious injury to
personnel, or damage to equipment.
Ø Observe the following safety precautions.
l
During the risk assessment, the designer must evaluate the stopping time of the machine. The
safety function Safe Torque Off time of intervention must be greater than the deceleration ramp
braking time set by the drive with maximum speed and maximum load on the axle. The
PN: L-MAM2-E-201
Moog Casella DM2020 Installation and Startup Guide
10.3.2 Characteristic Values According to CEI EN 62061
138

Moog DM2020 Series Specifications

General

Brand	Moog
Model	DM2020 Series
Category	DC Drives
Language	English