AMCI SV160E2, User Manual, Page: 84 / 120

I
NSTALLING THE
SV160E2
SV160E2 User Manual
ADVANCED MICRO CONTROLS INC.
84
1.8 DC Input Wiring
Refer to section 1.9, STO Input Wiring , for information on wiring the STO
inputs of an SV160E2-STO.
Inputs 1 through 4 on the SV160E2 and inputs 1 and 2 on the SV160E2-
STO are single ended inputs that share the DC Common return pin. They
accept a nominal 12 to 24 Vdc signal without the need for an external cur-
rent limiting resistor. If using 48 Vdc sensors, a 5 kilohm resistor that is
wired in series with the input pin is required. Figure T1.7 below shows how
to wire discrete DC sourcing and sinking sensors to the DC inputs of the
SV160E2 and SV160E2-STO. Colors in parentheses are the appropriate
wire color of the CNFL-5M cable.
Figure T1.7 Wiring - Digital Inputs 1 through 4
1.8.1 Sinking Sensors Require a Pull Up Resistor
Sensors with sinking outputs require an external pull up resistor because the digital inputs of the SV160E2
units also sink current. Table T1.1 below shows the values of pull up resistors that will allow the unit’s input
to activate along with the current that the sensor must be able to sink when it is active.
Table T1.3 Pull Up Resistor Values for DC Inputs
The logical states of the sensor and SV160E2 input will be reversed. The SV160E2 input is off when the sen-
sor is active. You can set the logic state of the input when you configure the unit.
Input
Voltage
Pull Up
Resistor
Sensor Current
When Active
12 Vdc 1.4 kilohm 8.6 mA
24 Vdc 3.8 kilohm 6.3 mA
Figure T1.6 Schematic - Inputs 1 - 4
Input
Optocoupler
Input
Optocoupler
Input
Optocoupler
Input
Optocoupler
Input 3
Input 2
Input 1
Input 4
DC Common
IN1, IN2,
IN3, or IN4
IN1, IN2, IN3, or IN4
IN DC Common
DC Common
+
+
+
+
–
(WHT, BRN,
GRN, or YEL)
(WHT, BRN,
GRN, or YEL)
–
12 to
24 Vdc
12 to
24 Vdc
PNP
Sourcing
Sensor
NPN
Sinking
Sensor
Out
Out
R
PULLUP
1.7.3
1.7.3
1.8.1
(BLU)
(BLU)