WARNING!
Do not connect the +24 V AC cable to the control unit ground when the control
unit is powered from an external 24 V AC supply.
■
NPN configuration for digital inputs (X2 & X3)
Internal and ex24 V power supply connections for NPN configuration are
shown in the figure below.
Ex24 V power supply
NPN connection (sink)
X2 & X3
10 +24V
11 DGND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
0 V DC
+24 V DC
In24 V power supply
NPN connection (sink)
X2 & X3
10 +24V
11 DGND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
Note: DI6 is not supported in the NPN configuration.
WARNING!
Do not connect the +24 V AC cable to the control unit ground when the control
unit is powered from an external 24 V AC supply.
■
Connection for obtaining 0…10 V from analog output 2 (AO2)
To obtain 0…10 V from analog output AO2, connect a 500 ohm resistor (or two
1 kohm resistors in parallel) between analog output AO2 and analog common
ground AGND.
X1
8 AO2
9 AGND
500 ohm
X1
8 AO2
9 AGND
1 kohm
1 kohm
0…
10
V
0…
10
V
■
Connection examples of two-wire and three-wire sensors to analog
input (AI2)
Note: The maximum capability of the auxiliary voltage output (24 V DC [250 mA])
must not be exceeded.
140 Control unit
Содержание ACH580-31
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