2 operating precautions (cont'd) /!\ caution, 3 confirmation of wiring /!\ caution, 4 start-up and test /!\ caution – Toshiba Q-Flowsaver II User Manual
Page 11: 5 maintenance a caution, Confirmation of wiring -4, Caution, A caution, 2 operating precautions (cont'd), 3 confirmation of wiring, 4 start-up and test
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T O S H I B A
2.2
Operating Precautions (cont'd)
/!\ CAUTION
13)
Do not open and then re-close a secondary magnetic contactor (MC) between
the inverter and the load until the Inverter has been turned OFF (output frequency
has dropped to zero) and the motor has stopped rotating.
Abrupt re-application
of the load while inverter is ON or motor is rotating can cause inverter
damage.
14)
The operator of the drive equipment should be properly trained In the operation
of the equipment.
15)
Follow all warnings and precautions; do not exceed equipment ratings.
2.3
Confirmation of Wiring
/!\ CAUTION
Make the following final checks before applying power to the unit:
1
)
2
)
3)
4)
Confirm that source power is connected to terminals LI, L2, L3 (R, S, T).
Connection of incoming source power to any other terminals will damage
the inverter.
The 3-phase source power should be within the correct voltage and frequency
tolerances.
The motor leads must be connected to terminals T1, T2, T3 (U, V, W).
Make sure there are no short circuits or inadvertent grounds and tighten any
loose connector terminal screws.
2.4 Start-Up and Test
/!\ CAUTION
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
A CAUTION
1
)
2
)
3)
Periodically check the operating inverter for cleanliness.
Keep the heatsink free of dust and debris.
A
Periodically check electrical connections for tightness
power is off and locked out).
(make sure
2 - 3