Test Run; Test Run By Connecting Only The Motor - Hitachi WJ Series User Manual

Chapter 8

8.2 Test Run

8.2.1

Test Run by Connecting Only the Motor

 How to perform a test run by connecting only the motor to the inverter?
Q
 In order to confirm that there are no fundamental problems with the inverter, motor, wiring, etc.,
A
perform a test run by connecting only the motor without load according to the following
procedure.
 Set the necessary setting of the motor to be used in the test run according to the "8.1
Mandatory Setting for Operation", and then perform the test run with no load to confirm that the
motor can be rotated forward, reverse, and stopped without any problems.
Note
Burnout
DO
Mandatory Setting for Motor Drive and Test Run
 Be sure to thoroughly read "Chapter 1 Safety Instructions/Risks" before starting
operation.
 For a test run with a motor only, it is recommended to use V/f control for the
control method.
 Do not run with an extremely smaller capacity motor than the inverter capacity.
In addition, when performing a test run with a motor with a several frames
smaller capacity against the inverter, set the control method to V/f control, and
set the basic motor settings such as motor capacity and electronic thermal
level according to the motor to be used. If the setting is incorrect, a current
larger than the motor rated current may flow, resulting in motor burnout.
 STOP/RESET key on the keypad can be set enable/disable. Prepare an
emergency stop/emergency shut-off switch, etc., separately in case of
emergency.
8-2-1