Hitachi LQE550 User Manual page 40

If the module emits smoke or foreign odor, immediately switch off the power
supply and investigate the problem cause.
Do not perform any installation, wiring, handling, or internal modification
procedures other than stated in this manual. In no event will Hitachi be
responsible for personal injury or death or any damage to Hitachi's product or
peripheral equipment arising out of the use of such an unauthorized
procedure.
While the power is applied, never touch a terminal strip or connector pin. If
you touch a terminal strip or connector pin while the power is applied, you may
receive an electric shock.
Dust or other foreign matter might accumulate on the connector, resulting in
poor contact. Immediately after the module is unpacked, perform the
mounting and wiring procedures.
To prevent the module from being damaged, observe the following precautions
when you mount or demount the module:
• Before mounting the module to the mount base connector, check that the
connector pins are properly aligned and not bent, broken, or soiled with dirt
or the like.
• Ensure that the module is parallel to the mount base vertical surface as
shown below when mounting. If you connect a module to or disconnect it
from its connector while it is tilted, the connector pins may become damaged.
• If the mount base is positioned overhead due to the employed enclosure
structure, use a stepladder or the like and mount the module squarely. If
you mount the module obliquely, the connector may become damaged.
Mount base
CAUTION
NOTICE
[Bad example]
Module
3-3
3 MOUNTING AND WIRING
[Good example]