Rockwell Automation 20D-P2-DG03 DriveGuard Safe Torque Off Option for PowerFlex 700S Phase II and 700L Drives - Manual (Page 8)

8 Rockwell Automation Publication 20D-UM007G-EN-P - March 2012
Chapter 1 General Description
Safety of Machinery Standards
The DriveGuard Safe Torque Off option meets the following council
directives and the requirements of the following machine safety standards:
• EN 61800-5-2:2007 Adjustable Speed Electrical Power Drives Systems –
Part 5-2 Safety Requirements: Functional
• EN ISO 13849-1:2008 Safety of Machinery – Safety-related parts of
control systems - Part 1: General Principles for Design
• EN 62061:2005 Safety of Machinery, Functional safety of safety-related
electrical, electronic and programmable electronic control systems
• EN 60204-1:2006 Safety of Machinery – Electrical equipment of
machines – Part 1: General Requirements
• IEC 61508 Part 1-7:1998, 2000, and 2010 Functional safety of electrical
/ electronic / programmable electronic safety-related systems
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 (refer to your drive’s 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 IGBTs 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.