Atlas Copco Power Focus 4000

Connecting devices
38 (428) 9836 3123 01
Pin
Function
1
Relay 1 Normally open
2
Relay 1 Common
3
Relay 1 Normally closed
4
Relay 2 Normally open
5
Relay 2 Common
6
Relay 2 Normally closed
7
Relay 3 Normally opened
8
Relay 3 Common
9
Relay 3 Normally closed
10
Relay 4 Normally opened
11
Relay 4 Common
12
Relay 4 Normally closed
4.9 24 VDC output
Isolated 24 VDC output. (19 V - 30 V), 1 A maximum load. This output can be used to feed external
equipment such as stack lights and buzzers. Atlas Copco I/O bus accessories are also powered from this
output.
4.10 I/O Bus
There are two I/O bus connectors.
Connector: 9-pin D-sub male.
Function: To connect Atlas Copco I/O bus accessories and interconnect several PF units in
Synchronization mode. I/O bus connector #1 is parallel with I/O bus connector #2.