Maintenance And Inspection; Periodic Check; Replacing Or Adding On The Module; Table 6-1 Periodic Check Items - Hitachi LQE550 User Manual

6 MAINTENANCE

6.1 Maintenance and Inspection

6.1.1 Periodic check

Item
Unit cleaning
Mechanical check Check CPU link module mounting screws, TB

6.1.2 Replacing or adding on the module

What you should get in preparation
① Personal computer (with Hitachi's S10V CPU LINK System installed in it)
② RS-232C cable (or 10BASE-T cable if the communication module used is an ET.NET
module)
③ New or add-on CPU LINK module (LQE550)
④ The above-mentioned ET.NET module is an optional module and, if it is mounted in place,
may be selected as the type of communication module to be used. For more information,
refer to Section 2.1, "Names and Functions of Each Part," and Section 3.2, "Mounting the
Module," in the USER'S MANUAL OPTION ET.NET (LQE520) (manual number
SVE-1-103).

Table 6-1 Periodic Check Items

Description
Turn off all the power supplies and then cleaner
the interior of the CPU link module through the
slits in its casing. Do not raise dust during
cleaning.
mounting screws, and communication cable
mounting screws for looseness and damage. If a
mounting screw is loose, tighten it. Replace
damaged parts.
6-2
Frequency
Twice/year
or more
Twice/year
or more