Digital Inputs; Digital Outputs - Graco ProBell Electrostatic Controller Instructions And Parts

Discrete I/O

Digital Inputs

The digital inputs are used to control the ProBell
Electrostatic Controller from a remote device, such
as a PLC. All digital inputs are sinking inputs. In
order to accept input signals from an external device
through the Discrete I/O interface, the REMOTE
Enable/Disable input must first be activated.
Electrical Specification
Parameter
Input type
Input impedance
Maximum allowed input
voltage
Minimum required "1"
input voltage
Maximum allowed "0"
input voltage

Digital Outputs

The digital outputs provide status signals to other
devices, such as a PLC. The outputs can be
configured to be sinking or sourcing outputs. This
setting applies to all digital outputs simultaneously.
The digital outputs require an external 24 VDC
voltage to be connected to Output External Power
(discrete I/O interface, pin 16).
Electrical Specification
Use Parameter P05 (see
Setup Screen 5 (Digital Output Type Select), page
to select the output signal type.
26
Value
Current sinking
>10 kΩ
30 VDC
> 10 VDC
< 4 V (Open inputs have
"0" level)
46)
Table 2 Sinking Output Mode: P08 = 0
Parameter
Output type
Output impedance
Maximum allowed output
voltage
Short circuit protection
Inactive Voltage Level
Active Voltage Level
NOTE: Sinking digital outputs require a pull-up to the
connecting device's logic level "1" (e.g., 24 VDC).
Table 3 Sourcing Output Mode: P08 = 1
Parameter
Output type
Output impedance
Maximum allowed output
voltage
Short circuit protection
Inactive Voltage Level
Active Voltage Level
NOTE: Sourcing digital outputs require a pull-down
to the connecting device's logic level "0" (e.g. GND).
Value
Sinking (P08 = 0)
1 kOhm
30 VDC
0 – 30 VDC
High impedance (set by
the pull-up resistor)
Low/GND (Negative
logic)
Value
Sourcing (P08=1)
1.8 kOhm
30 VDC
0 – 30 VDC
High impedance (set by
pull-down resistor)
High/Voltage at Pin 16
(Positive logic)
3A3657C