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Rockwell Automation Publication PFLEX-UM003D-EN-P - June 2021
General Description
Certifications and Compliance
TUV Rheinland EC Type Examination Certification
TUV Rheinland has certified the DriveGuard Safe Torque Off option, when used in a
PowerFlex 70 or PowerFlex 40P drive, is compliant with the requirements for
machines defined in Annex I of the EC Directive 2006/42/EC, and that it complies with
the requirements of the relevant standards listed below.
•
EN ISO 13849-1 Safety of machinery - Safety related parts of control systems -
Part 1: General principles for design
(DriveGuard Safe Torque Off drive achieves Category 3 / PL (d))
•
EN/IEC 61800-5-2 Adjustable speed electrical power drive systems - Part 5-2
Safety requirements - Functional
(DriveGuard Safe Torque Off drive achieves SIL CL 2)
•
EN/IEC 62061 Safety of machinery - Functional safety of safety-related electrical,
electronic and programmable electronic control systems
•
IEC 61508 Part 1-7 Functional safety of electrical/electronic/programmable
electronic safety-related systems
TUV also certifies that the DriveGuard Safe Torque Off option may be used in
applications up to Category 3 / PL (d) according to EN ISO 13849-1 and SIL 2 according
to EN/IEC 62061 / IEC 61508 / EN/IEC 61800-5-2.
TUV Rheinland certifications may be found at
.
ATTENTION:
Electrical Shock Hazard. Verify that all sources of AC and DC
power are de-energized and locked out or tagged out in accordance with the
requirements of ANSI/NFPA 70E, Part II.
ATTENTION:
To avoid an electric shock hazard, verify that the voltage on the
bus capacitors has discharged before performing any work on the drive.
Measure the DC bus voltage at the +DC and -DC terminals or test points (see
your drive
User Manual
for locations). The voltage must be zero.
ATTENTION:
In Safe Torque Off mode, hazardous voltages may still be present
at the motor. To avoid an electric shock hazard, disconnect power to the motor
and verify that the voltage is zero before performing any work on the motor.
ATTENTION:
In the event of the failure of two output IGBT's in the drive, when
the DriveGuard Safe Torque Off option has controlled the drive outputs to the
off state, the drive may provide energy for up to 180° of rotation in a 2-pole
motor before torque production in the motor ceases.
