4. Electrical Interface
Description The robot arm and the Control Box contain electrical interface groups. Examples are
given for most types of I/O. The term I/O refers to both digital and analog control
signals to or from the electrical interface groups listed below.
•
Mains connection
•
Robot connection
•
Controller I/O
•
Tool I/O
•
Ethernet
All voltages and currents are in Direct Current (DC) unless otherwise specified.
4.1. Electrical Warnings and Cautions
Warnings Observe the following warnings for all the interface groups, including when you design
and install an application.
PLC
WARNING
Failure to follow any of the below can result in serious injury or death,
as the safety functions could be overridden.
•
Never connect safety signals to a PLC that is not a safety PLC
with the correct safety level. It is important to keep safety
interface signals separated from the normal I/O interface
signals.
•
All safety-related signals shall be constructed redundantly (two
independent channels).
•
Keep the two independent channels separate so a single fault
cannot lead to loss of the safety function.
UR3e 44 User Manual
4. Electrical Interface
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