I/O interface description
GVI Product Manual: Frames C, D & E
32
192-300300N1 GVI Frames C, D & E 2019-9
8.5.3. Circuit
Figure 18. Schematic of the HW ID input circuit
8.6
Analog Inputs
8.6.1. Functions
The analog inputs are for application use, such as speed or brake potentiometers. Analog inputs are
connected to an Analog to Digital Converter (ADC).
The Analog inputs may also be used as extra Digital inputs. The ADC-value is then used to indicate input
status. As an example: A switch supplied from B+ is connected to an analog input.
8.6.2. Protection
Analog inputs are B+ and B- protected and have a capacitor to B- for ESD protection.
8.6.3. Circuit
WARNING
Risk of injury and/or damage to material – missing data input
If an analog input is used as a speed reference to the motor controller, a system safety
strategy must be defined.
The application software must take care of analog input errors such as “out of range”, “wire
short circuit”, and “wire disconnected”.
The SENSOR_SUPPLY_GND connector pin is the ground reference for the analog inputs.
The SENSOR_SUPPLY _GND must NOT be connected to B- externally; severe noise problems or
motor controller damage may occur.
Figure 19.Schematic of the Analog input circuit
