Hitachi SJ7002 Series Instruction Manual page 69

2–28
Powerup Test
Powering the
Inverter
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CAUTION: If you operate a motor at a frequency higher than the inverter standard default
setting (50Hz/60Hz), be sure to check the motor and machine specifications with the respective
manufacturer. Only operate the motor at elevated frequencies after getting their approval.
Otherwise, there is the danger of equipment damage and/or injury to personnel.
CAUTION: Check the following before and during the powerup test. Otherwise, there is the
danger of equipment damage.
• Is the shorting bar between the [P] and [PD] terminals installed? DO NOT power or
operate the inverter if the jumper is removed.
• Is the direction of the motor rotation correct?
• Did the inverter trip during acceleration or deceleration?
• Were the rpm and frequency meter readings as expected?
• Were there any abnormal motor vibrations or noise?
If you have followed all the steps, cautions and warnings up to this point, you're ready to apply
power. After doing so, the following events should occur:
• The POWER LED will illuminate.
• The numeric (7-segment) LEDs will display a test pattern, then stop at
• The Hz LED will be ON.
If the motor starts running unexpectedly or any other problem occurs, press the STOP key. Only
if necessary should you remove power to the inverter as a remedy.
NOTE: If the inverter has been previously powered and programmed, the LEDs (other than the
POWER LED) may illuminate differently than as indicated above. If necessary, you can initial-
ize all parameters to the factory default settings. See
page 6–16.
0.0
.
"Restoring Factory Default Settings" on