ABB ACH550-01 - Page 422

Technical data 417
ACH550-01 User's Manual
The terminals on the control board as well as on the optional
modules attachable to the board fulfil the Protective Extra Low
Voltage (PELV) requirements stated in EN 50178, provided that
the external circuits connected to the terminals also fulfil the
requirements and the installation site is below 2000 m (6562 ft).
You can wire the digital input terminals in either a PNP or NPN
configuration.
For using an external power supply, see the diagrams below.
NPN connection (sink)PNP connection (source)
10 +24V
11 GND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
10 +24V
11 GND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
X1
X1
NPN connection (sink)PNP connection (source)
10 +24V
11 GND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
10 +24V
11 GND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
X1
X1
+12/24 V DC
0VDC
0VDC
+12/24 V DC
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