Chapter 7: Setting And Procedure For Operation 7-1; Precautions For Handling - Mitsubishi Electric QE82LG User Manual

7 Setting and procedure for operation
Chapter 7: Setting and procedure for operation

7.1 Precautions for handling

(1) Do not drop the case of this module or give a strong impact.
(2) Do not remove the printed circuit board of the module from the case.
It may cause failure.
(3) Prevent the inside of the module from any foreign objects such as chips and wire pieces.
It may cause fire, failure or malfunction.
(4) In order to prevent the module from incoming foreign objects such as wire pieces during wiring
work, a foreign-object preventive label is placed on the module.
While a wiring work is performed, keep the label on the module.
Before operating the system, peel off the label for heat release.
(5) Module fixing screws must be tightened within the specified range as described below.
Loose screws may cause short-circuit, failure, or malfunction.
*1 The module can be fixed easily to the base unit, using the hook on top of the module. However,
if it is used under a vibrating environment, we strongly recommend that the module be fixed with
screws.
Module-fixing screws (M3 screw)
(6) To attach the module to the base unit, firmly insert the protruding portions for fixing the module into
the holes on the base unit, and make sure the module is securely attached to the module holes as
fulcrum points.
Insecure attachment of the module may case malfunction, failure, and a falling.
(7) Before touching the module, make sure that you need to discharge static electricity on your body by
touching a metal that is grounded.
Otherwise, it may cause failure or malfunction to the module.
Table 7.1-1 Tightening torque
Locations of screws Torque range
*1
0.36 - 0.48 N•m
7 - 1
QE82LG