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TOSHIBA
21-6: Setting of the allowable motor locking time '(6SMj
Setting depends on the insulation class of the winding.
Table 5 (Table Al).
21-T: Setting of the rated temperature rise (6'SN)
Under this condition, the operating point of OL is given by
1.1 x IrnFLC
22-2: Setting of the INST current (I>>)
This function should be locked when a combination starter is
used as the motor starter.
When switchgear incorporating a circuit breaker is used as the
starter, the following characteristics should be coordinated
during the setting procedure:
22-3: Setting of INST time CT>))
This is fixed at 0.05 s.
22-4: Setting of OC current (10~)
OC is not for the motor protection but for the protection of
equipment connected to the motor. OC is locked when the
equipment protection is not needed.
When OC is equired. set to 1.5 (times).
22-5: Setting of OC time (Tot)
Set Oc time to 0.3 s.
23-2: Setting of unbalance factor OJB)
Set UB to 5%.
23-3: Setting of UC current (1"~)
UC is not for the motor protection, but for preventing
When not necessary, it is locked.
When needed, set to 80 (%).
It is recommended however that you measure
the no-load current INK and set the UC current to 1.2 x
overcurrent relay characteristics
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See
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