Omron LD-250 - And PFH

Mobile Robot LD-250 Assembly Instructions, Rev. A
Page 28 of 77
EHSR,
Annex I
Title
1.1.5
Design of machinery to facilitate its handling
1.2
Control Systems
1.3.2
Risk of break-up during operation
1.3.4
Risks due to surfaces, edges or angles
1.5.1
Risks due to other hazards - Electricity supply
1.5.2
Risks due to other hazards - Static electricity
1.5.4
Risks due to other hazards - Errors of fitting
1.5.5
Risks due to other hazards - Extreme temperatures
1.5.10
Risks due to other hazards - Radiation
1.5.11
Risks due to other hazards - External radiation
1.5.12
Risks due to other hazards - Laser radiation
1.6.1
Machinery maintenance
3.12 PL and PFH
The Performance Level (PL) calculation for safety functions of the OMRON mobile robot
products are based on the ISO 13849 standard. PL evaluation has been performed for the LD
models, including the supplied pendant.
The PL achieved and the Probability of Dangerous Failure per Hour (PFH) are calculated
using SISTEMA as per ISO 13849-1, based on requirements of EN 1525 and UL 3100, for the
following Safety Functions: