TOSHIBA
2.3
Confirmation of Wiring
Make the following final checks before applying power to the unit:
1)
Confirm that source power is connected to terminals L1, L2, L3 (R, S, T) in the
6-pulse unit and to the input phase shifting transformer in the 12-pulse unit.
Connection of incoming source power to any other terminals will damage
the inverter.
2)
The 3-phase source power should be within the correct voltage and frequency
tolerances (see page 3-1 for ratings).
3)
The motor leads must be connected to terminals T1, T2, T3 (U, V, W).
4)
Make sure there are no short circuits or inadvertent grounds and tighten any
loose connector terminal screws.
2.4
Start-Up and Test
Prior to releasing an electrical drive system for regular operation after installation,
the system should be given a start-up test by competent personnel. This assures
correct operation of the equipment for reasons of reliable and safe performance. It is
important to make arrangements for such a check and that time is allowed for it.
When power is applied for the first time the inverter will come up in the factory settings
(See section 7.2). If these settings are incorrect for the application trial run then the
correct settings should be programmed from the control panel before activating the run
button.
The inverter can be operated with no motor connected. Operation with no
motor connected or use with a small trial motor is recommended for initial adjustment or
for learning to adjust and operate the inverter.
2.5
Maintenance
1)
Periodically check the operating inverter for cleanliness.
2)
Keep the heatsink free of dust and debris.
3)
Periodically check electrical connections for tightness
(make sure
power is off and locked out).ke sure
power is off and locked out).
2 - 3
CAUTION
CAUTION
CAUTION
Note:
1)
See Section 12.2 for parts service life.
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