Hitachi LQZ700, User Manual

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3. Operating Precautions
REQUIREMENT
The module could fire or fail under heat. When the temperature in the enclosure
exceeds 48
°
C, the maximum output current flowing through the power module is
limited. Its current is limited to 5.85 A at 55
°
C. Allowing for the environment in
which the module is installed, install a cooling fan in the enclosure or limit the
number of modules installed in it. For more information, refer to “USER’S
MANUAL R70 BASIC MODULE (manual number SVE-1-111)” or “USER’S
MANUAL BASIC MODULE (manual number SVE-1-100).”
DANGER
z If the module emits smoke or foreign odor, immediately switch off the power
supply and investigate the problem cause.
z 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.
z 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.
CAUTION
z
Before changing the program, generating a forced output, or performing the
RUN, STOP, or like procedure during an operation, thoroughly verify the safety
because the use of an incorrect procedure may cause equipment damage or
other accident.
z When you switch on the power supply, follow the specified sequence. Failure
to follow the specified sequence may cause equipment damage or other
accident.
z Do not use a transceiver, cellular phone, or similar device near the module
because module malfunction or system failure may occur due to noise.
z
To avoid malfunction, ensure that the power supply is switched on and off at
intervals of longer than 1 second.