Warnings And Cautions For Troubleshooting And Maintenance - Omron MX2 User Manual

Index to Warnings and Cautions in This Manual
!Caution The operation of the inverter can be easily changed from low speed to high
!Caution If you operate a motor at a frequency higher than the inverter standard default
!Caution It is possible to damage the inverter or other devices if your application
!Caution Be sure to turn OFF power to the inverter before changing the short circuit bar
!Caution Be careful not to turn PID clear ON and reset the integrator sum when the
!HIGH VOLTAGE
!Caution CAUTION: The digital outputs (relay and/or open collector) available on the
!HIGH VOLTAGE
!WARNING
!WARNING
!WARNING
!Caution Do not connect the megger to any control terminals such as intelligent I/O,
!Caution Never test the withstand voltage (HIPOT) on the inverter. The inverter has a
speed. Be sure to check the capability and limitations of the motor and
machine before operating the inverter. Otherwise, it may cause injury to per-
sonnel. ....................................................................................................... 165
setting (50Hz/60Hz), be sure to check the motor and machine specifications
with the respective manufacturer. Only operate the motor at elevated frequen-
cies after getting their approval. Otherwise, there is the danger of equipment
damage. ..................................................................................................... 165
exceeds the maximum current or voltage characteristics of a connection point.
.................................................................................................................... 167
position to change SR/SK. Otherwise, damage to the inverter circuitry may
occur. ......................................................................................................... 175
inverter is in Run mode (output to motor is ON). Otherwise, this could cause
the motor to decelerate rapidly, resulting in a trip.
When set RDY function ON, there will be a voltage appear at motor output ter-
minals U, V and W even if the motor is in stop mode. So never touch the
inverter power terminal even the motor is not running
drive must not be considered as safety related signals. The outputs of the
external safety relay must be used for integration into a safety related control/
command circuit.
Dangerous voltage exists even after the Safe Stop is activated. It does NOT
mean that the main power has been removed.

Warnings and Cautions for Troubleshooting and Maintenance

Wait at least ten (10) minutes after turning OFF the input power supply before
performing maintenance or an inspection. Otherwise, there is the danger of
electric shock.
Make sure that only qualified personnel will perform maintenance, inspection,
and part replacement. Before starting to work, remove any metallic objects
from your person (wristwatch, bracelet, etc.). Be sure to use tools with insu-
lated handles. Otherwise, there is a danger of electric shock and/or injury to
personnel.
Never remove connectors by pulling on its wire leads (wires for cooling fan
and logic P.C.board). Otherwise, there is a danger of fire due to wire breakage
and/or injury to personnel.
analog terminals, etc. Doing so could cause damage to the inverter.
surge protector between the main circuit terminals above and the chassis
ground.
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