Product Details

PPE091A101 ABB New inventory of imported spare parts for modular industrial control system

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Use the procedure below to install the PM891 processor unit in single configuration:

1. If already connected, remove the CEX-Bus termination from the side of the

PM891 processor unit.

2. Mount the PM891 processor unit, the communication interfaces, and the S800

I/O units on the DIN-rail.

The communication interfaces for PM891 is connected to the CEX-Bus to the

left of the processor unit. The S800 I/O units for PM891 is connected through

the optical ModuleBus at the bottom of the processor unit.

3. Re-insert the bus terminations into the communication units farthest from the

processor unit. For CEX-Bus, use the TB850 termination plug (TB851, if

CEX-Bus Extension cable TK850 is used. If no units are used on the CEX-Bus,

no bus termination is required.

4. Provide termination for redundancy, by using the termination plug

TB853 RCU Control Link Terminator, at the RCU Control Link connector at

the top of the processor unit.

5. Provide cable connections:

a. Connect the power leads to screw terminals L+ and L-. If applicable,

connect the power supervision signals from SS82x to the screw terminals

SA and SB.

b. Connect the Control Network cables to CN1 (single connection) or

CN1 + CN2 (redundant connection).

c. Connect the Control Builder to COM4 with cable TK212 (if required, for

changing an IP address). Otherwise connect the Control Builder to the

Control Network.