ABB AC 800M

Section 1 Introduction PM891 Processor Unit – General
3BSE036351-510 A 41
Figure 8 shows the front view, Figure 9 shows the top view, and Figure 10 shows the
bottom view of PM891.
Figure 8. PM891-Front view
Com
Port
External
Battery
Supply
Socket
Power supply
and
Supervision
Signal
Socket
CN1 and CN2 ports
DIN-Rail locking device
Tx/Rx Optical
ModuleBus port
CEX Bus
LED Status
Indicators