Functional safety
FUN
C
TI
ON
AL SAFET
Y
Risk analysis
9.
319
DDS
HARDWARE
Ref.1310
9.5 Risk analysis
The machine manufacturer must run a thorough analysis of the possible
risks of the whole system and take the necessary measures to ensure the
safety of the machine as a whole. The residual risk of the machine re-
maining after carrying out all the protection measures taken.
Residual risk of AXD/SPD drive
The residual risk regarding the AXD/SPD drive may be prevented if nec-
essary with additional external measures.
Only a simultaneous failure of two IGBT’s (the top one and the bottom
one of the output stage) can cause the axis to move for an instant ( <
180 electrical degrees). If accessing the machine while stopping is
risky (according to risk analysis), take the necessary measures.
The action of external forces on to the motor (eg. gravity on vertical
axes) causing unwanted movement of the motor can cause a risky sit-
uation if it is possible to access the machine. Take the necessary mea-
sures to ensure protection against a drop.
The unit must always be replaced by another one of the same type.
Otherwise, the parameters will not match the safety configuration and
its performance may be risky.
Summary of Contents for DDS
Page 1: ...DRIVE DDS Hardware manual Ref 1310...
Page 6: ...I 6 DDS HARDWARE Ref 1310...
Page 9: ......
Page 10: ......
Page 11: ......
Page 12: ......
Page 16: ...16 Ref 1310 DDS HARDWARE...
Page 30: ...1 DESCRIPTION 30 Description DDS HARDWARE Ref 1310...
Page 94: ...2 POWER SUPPLIES 94 Power supplies DDS HARDWARE Ref 1310...
Page 188: ...3 DRIVE MODULES 188 Drive modules DDS HARDWARE Ref 1310...
Page 204: ...4 AUXILIARY MODULES 204 Auxiliary modules DDS HARDWARE Ref 1310...
Page 232: ...SELECTING CRITERIA 5 232 Selection criteria DDS HARDWARE Ref 1310...
Page 266: ...7 CABLES 266 Cables DDS HARDWARE Ref 1310...
Page 312: ...8 INSTALLATION 312 Installation DDS HARDWARE Ref 1310...
Page 326: ...9 FUNCTIONAL SAFETY 326 Functional safety DDS HARDWARE Ref 1310...
Page 354: ...10 CONNECTION DIAGRAMS 354 Connection diagrams DDS HARDWARE Ref 1310...
Page 378: ...12 SALES REFERENCES 378 Sales references DDS HARDWARE Ref 1310...
Page 384: ...13 COMPATIBILITY 384 Compatibility DDS HARDWARE Ref 1310...
Page 385: ......