Hirschmann MACH4000 Series, Руководство пользователя

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Installation MACH4000
Release 14 06/2013
45
2.6 Installing the plug-in power units in the
M4-POWER power unit chassis
When replacing a defective plug-in power unit, only use a plug-in power unit
of the M4-P-... 300W type
(see on page 61 “Order numbers/product
description”)

Remove the power supply cables.

Loosen the four screws used to fasten the plug-in power unit in the basic
device and pull the unit out of the basic device, or remove the cover plate
of the power unit slot.

Slide the new plug-in power unit all the way into the basic device along
the mounting rails above and below.

Make sure that there is a good connection between the multiple plug of
the plug-in power unit and the female multipoint of the system bus.

Screw the slotted-head screws in the front panel of the plug-in power unit
flush with the frame of the basic device.

Connect the power supply cables.
Note: The tightening torque is

7 lb in. (0.791 Nm) for input connections.
 11 lb in. (1.243 Nm) for all field wiring terminal blocks.