Universal Robots UR30 - Page 71

Common
specifications
for all digital I/O
This section defines electrical specifications for the following 24V digital I/O of the
Control Box.
•
Safety I/O.
•
Configurable I/O.
•
General purpose I/O.
NOTICE
The word configurable is used for I/O configured as either safety-
related I/O or normal I/O. These are the yellow terminals with black text.
Install the robot according to the electrical specifications which are the same for all three
inputs.
It is possible to power the digital I/O from an internal 24V power supply or from an
external power source by configuring the terminal block called Power. This block
consists of four terminals. The upper two (PWR and GND) are 24V and ground from the
internal 24V supply. The lower two terminals (24V and 0V) in the block are the 24V input
to supply the I/O. The default configuration uses the internal power supply.
Power
supply
If more current is needed, connect an external power supply as shown below.
24V
0V
PWR
GND
Power
24V
0V
PWR
GND
Power
In this example the default configuration using
the internal power supply
In this example the default configuration with
an external power supply for more current.
The electrical specifications for both the internal and external power supply are shown below.
Terminals Parameter Min Typ Max Unit
Internal 24V power supply
[PWR - GND]
Voltage 23 24 25 V
[PWR - GND]
Current 0 - 2* A
External 24V input requirements
[24V - 0V]
Voltage 20 24 29 V
[24V - 0V]
Current 0 - 6 A
*3.5A for 500ms or 33% duty cycle.
User Manual 72 UR30
8.Installation
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