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TOSHIBA
6F9EOlll
No.
Item
Description
State at
delivery
21-4
Cooling
time Sets the motor cooling time constant. When
"0"
10 min
constant
is set, 3 times the heating time constant of
21-3 becomes the setting value.
21-5
Automatically When the automatic detection of the cooling time 0 min
detected
constant is turned ON at P34, the
S2E21
value automatically detects the cooling tine-constant.
The detected cooling time constant is displayed
here.
The detected cooling time constant is reflected
on the setting at 21-4. RTD l-3 are necessary
for
stator
temperature detection, and RTD 8 for
ambient temperature.
21-6 Stator
Sets the allowable temperature rise of the motor 60
"C
allowable stator.
This is generally determined by the
temperature insulation class of the stator winding.
rise
21-7 Stator
rated Sets the temperature rise that would occur when
50
'c
temperature
the motor is operated at the rated output
rise (rated current).
This data is indicated in the motor test record
or supplied by motor manufacturer.
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58
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