Rockwell Automation 2755-DM9, -DM9E High Speed Decoder User Manual

Page 81

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Chapter 5
Installing the Decoder

5–7

4) After loosening the hold-down screws, modules can be pulled or plugged
into the circuit board. Be careful not to damage the board. Make sure
hold-down screws are tightened on installed modules.

Connect wiring to the modules as follows:

1) Eight terminal block type connectors are provided. Refer to Figure 5.5.
These connectors will accept up to 14 gauge wiring.

Figure 5.5
Modules and Connectors

HOLD DOWN
SCREWS

M
O

D
U

L

E

1

SPARE 2

SPARE 1

M
O

D
U

L

E

2

M
O

D
U

L

E

3

M
O

D
U

L

E

4

M
O

D
U

L

E

5

M
O

D
U

L

E

6

M
O

D
U

L

E

7

M
O

D
U

L

E

8

F1

F2

F3

F4

F5

F6

F7

F8

DC

OUTPUT MODULES

PROVIDED IN FIRST TWO
POSITIONS

MODULE
CONNECTORS (8)

FUSES (8)

LOCATION #8 ACCEPTS
EITHER AN INPUT OR
OUTPUT MODULE

2) When wiring, refer to Figure 5.6 for the terminal connections. Make sure
that you note the polarity when using DC modules.

3) Strip 1/4-inch (6 mm) of the insulation from the wire. Open the connector
by turning the locking screw counterclockwise until the wire can be inserted
into the connector.

4) Tighten the locking screw on the connector to secure the wire.

5) Route wires from the module connectors through either the round
knockout into conduit or the slot provided on the back of the chassis.

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