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3 Start-Up Procedure
3.1
Safety Instructions for Start-Up
Before applying power
1
See if cover is closed in appropriate posion.
2
Check all cable connection is tightened with the right thickness and enough torque.
3
Ensure the input power is turned OFF.
4
Check R, S, T input power cable’s voltage. No voltage should be shown between each
phase and ground.
5
Check U,V,W output terminal cable’s voltage. No voltage should be shown between
each phase and ground
6
Confirm continuity of the motor by measuring resistances on U-V, V-W, and W-U.
7
Check for proper grounding of the inverter and the motor.
8
Inspect the inverter for loose connections on terminals.
9
Confirm that the supply voltage matches voltage of the inverter and motor.
The inverters contain high voltage when connected to AC line power. Installation, start-up,
and maintenance must be performed by qualified personnel only. Failure to perform
installation, start-up, and maintenance by qualified personnel could result in death or
serious injury..
Applying Power
1
Confirm that the input voltage is balanced within 2%.
2
Ensure that all operator devices are in the OFF position. Panel doors must be closed or
cover mounted.
3
To apply power to the inverter, turn to the ON position for units with a disconnect
switch.
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