Using The Tool Digital Inputs; Tool Analog Inputs; Using The Tool Analog Inputs, Non-Differential - Universal Robots UR3/CB3 Original Instructions Manual

5.4.2.1 Using the Tool Digital Inputs

The example below shows how to connect a simple button.

5.4.3 Tool Analog Inputs

The tool analog inputs are non-differential and can be set to either voltage and current on the I/O
tab, see part II. The electrical specifications are shown below.
Two examples of how to use analog inputs are shown in the following subsections.

5.4.3.1 Using the Tool Analog Inputs, Non-differential

The example below shows how to connect an analog sensor with a non-differential output. The
output of the sensor can be either current or voltage, as long as the input mode of that analog input
is set to the same on the I/O tab. Remember to check that a sensor with voltage output can drive
the internal resistance of the tool, or the measurement might be invalid.
UR3/CB3
Parameter
Input voltage in voltage mode
Input resistance @ range 0V to 10V
Resolution
Input voltage in current mode
Input current in current mode
Input resistance @ range 4mA to 20mA
Resolution
CAUTION:
1. Analog inputs are not protected against over voltage in current
mode. Overrating the limit in the electrical specification can
cause permanent damage to the input.
POWER
TI0
Min Typ
-0.5 -
- 15
- 12
-0.5 -
-2.5 -
- 200
- 12
POWER
AI2
AI8
GND
I-44
5.4 Tool I/O
Max Unit
26 V
- k
- bit
5.0 V
25 mA
-
- bit
Version 3.10