Figure 6: Typical Di Point Schematic; Figure 7: Di Connection Examples - ABB XSeriesG4 User Manual

DANGER – Serious damage to health / risk to life. When connecting or disconnecting any wires to the
G4
XRC board, remove all power sources and make sure to be grounded properly.
The digital input reads an external contact. Figure 6 is a typical point schematic for the digital input. Figure 7 shows an example
of point connections for the DI and the typical input voltage.
SIG
NPN
GND
OR
FIELD DEVICE
3.1 VDC
SIGNAL
OUTPUT
0.5 VDC
-0.5 VDC MIN.
COMMON (GND)
Electrical specification (each point):
–
Open circuit voltage, 5 Vdc (internally pulled up to 5 Vdc Nom.)
–
Short circuit leakage current, -395 µA typical
–
Input capacitance, 0.1 µfd typical
–
Maximum allowable voltage range on input -0.5 Vdc to 15 Vdc
–
Maximum frequency input 100Hz at 50% duty cycle with debounce enabled
–
Maximum frequency input 20KHz at 50% duty cycle with debounce disabled
Input specification
–
Dry contact (form A), open collector or active voltage
– Minimum contact resistance to activate input 1000 Ω
+5
SIG
1K
.1UF
DEBOUNCE SELECT
GND

Figure 6: Typical DI point schematic

POINT CONNECTIONS
SIG
SIG
OPTO
SWITCH
COUPLER
GND
GND
OR
TYPICAL VOLTAGE INPUT FIELD
15 VDC MAX.
SIG
GND

Figure 7: DI connection examples

10K
INPUT SENSE
+5
10K
SIG
1K
.1UF
DEBOUNCE SELECT
GND
+5
10K
SIG
1K
.1UF
DEBOUNCE SELECT
GND
10
INPUT SENSE
INPUT SENSE