Rockwell-automation 1769-SM2 Compact I/O DSI/Modbus Network Communicat Manual de usuario descargar pdf (Pagina 5)

e. Place the modules back on the panel, and check for proper hole

alignment.

f. Attach the modules to the panel using the mounting screws.

B. DIN Rail Mounting — The 1769-SM2 module can be mounted using

the following DIN rails:

• 35 x 7.5 mm (EN 50 022 - 35 x 7.5)

• 35 x 15 mm (EN 50 022 - 35 x 15)

Before mounting the module on a DIN rail, close the DIN rail latches.

Press the DIN rail mounting area of the module against the DIN rail.

The latches will momentarily open and lock into place.

Step 5

Replacing the module within a system. The 1769-SM2 module can be

replaced while the system is mounted to a panel (or DIN rail).

A. Remove power.

B. Unplug the communications cable from each port (CH1, CH2, CH3) on

the 1769-SM2 module. Note each drive and the port to which it is

connected.

C. Remove the upper and lower mounting screws from the module (or

open the DIN latches using a flat-blade screwdriver).

D. On the right-side adjacent module, move its bus lever to the right

(unlock) to disconnect it from the module being removed.

E. Gently slide the disconnected 1769-SM2 module forward. If you feel

excessive resistance, make sure that you disconnected the module from

the bus and that you removed both mounting screws (or opened the DIN

latches).

ATTENTION: Risk of equipment damage exists. Remove

power before installing or removing the 1769-SM2 module.

When you install or remove the module with power applied, an

electrical arc may occur. An electrical arc can cause personal

injury or equipment damage by:

• Sending an erroneous signal to your system’s filed devices,

causing unintended machine motion.

• Causing an explosion in a hazardous environment.

Electrical arcing causes excessive wear to contacts on both the

module and its mating connector. Worn contacts may create

electrical resistance.

TIP: It may be necessary to slightly move the module from

front to back to remove it, or in a panel-mounted system, to

loosen the screws of adjacent modules.

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Rockwell-automation 1769-SM2 Compact I/O DSI/Modbus Network Communicat Manual de usuario Pagina 5