General Warnings And Cautions - Hitachi WJ200-001S Instruction Manual

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Warnings and Cautions for Troubleshooting and Maintenance
WARNING: Wait at least five (5) minutes after turning OFF the input power WARNING
WARNING WARNING
supply before performing maintenance or an inspection. Otherwise, there is the
danger of electric shock.
WARNING: Make sure that only qualified personnel will perform maintenance, WARNING
WARNING WARNING
inspection, and part replacement. Before starting to work, remove any metallic
objects from your person (wristwatch, bracelet, etc.). Be sure to use tools with
insulated handles. Otherwise, there is a danger of electric shock and/or injury to
personnel.
WARNING WAR NING: Never remove connectors by pulling on its wire leads (wires for cooling
WAR WAR NING NING
fan and logic P.C.board). Otherwise, there is a danger of fire due to wire breakage
and/or injury to personnel.
CAUTION CAUTION: Do not connect the megger to any control terminals such as intelligent CAUTION CAUTION
I/O, analog terminals, etc. Doing so could cause damage to the inverter.
CAUTION CAUTION: Never test the withstand voltage (HIPOT) on the inverter. The inverter CAUTION CAUTION
has a surge protector between the main circuit terminals above and the chassis
ground.
CAUTION: Do not connect the megger to any control circuit terminals such as CAUTION:
CAUTION: CAUTION:
intelligent I/O, analog terminals, etc. Doing so could cause damage to the inverter.
CAUTION: CAUTION: Never test the withstand voltage (HIPOT) on the inverter. The inverter CAUTION: CAUTION:
has a surge protector between the main circuit terminals above and the chassis
ground.
HIGH VOLTAGE: Be careful not to touch wiring or connector terminals when HIGH VOLTAGE HIGH VOLTAGE HIGH VOLTAGE
working with the inverters and taking measurements. Be sure to place the
measurement circuitry components above in an insulated housing before using
them.

General Warnings and Cautions

WARNING: Never modify the unit. Otherwise, there is a danger of electric shock and/or injury. WARNING:
WARNING: WARNING:
CAUTION: CAUTION: CAUTION: CAUTION: Withstand voltage test and insulation resistance tests (HIPOT) are executed before
the units are shipped, so there is no need to conduct these tests before operation.
CAUTION: CAUTION: Do not attach or remove wiring or connectors when power is applied. Also, do not
CAUTION: CAUTION:
check signals during operation.
CAUTION: CAUTION: Be sure to connect the grounding terminal to earth ground. CAUTION: CAUTION:
CAUTION: CAUTION: CAUTION: CAUTION: When inspecting the unit, be sure to wait five minutes after turning OFF the power
supply before opening the cover.
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