LS SV-iG5H Series, Руководство пользователя, Страница: 182 / 226

Protective functions
168
10.8 DB Resistor Enable Duty setting
Group Code Parameter Name Setting Range Default Unit
Function
group 2
H75 [Enable duty limit] 1 0 - 1 1
H76 [Enable duty] - 0 - 30 10 %
Set H75 to 1.

Set %ED (Enable Duty) in H76.

►
75: DB resistor ED limit setting
0
No limit
Take caution when DB resistor is used over its Watt rating. Fire may result
from resistor overheat. When resistor having heat detection sensor is used,
sensor output can be used as external trip signal in multi-function input.
1 ED is limited as the setting in H 76.
►
H76: set the resistor operating rate(%ED) in one sequence of operation. Continuous
usage reate is Max 15 sec and usage signal is not issued over 15 sec.
Ex 1)
[%] 100
_ _ _ _
_
76

  

stop T dec T steady T acc T
dec T
H
Where,
T_acc: Acceleration time to reach a setting freq.
T_steady: Time for constant speed operation at setting freq.
T_dec: Time to decelerate to lower freq. than that in constant speed
or time to stop from freq. in constant speed.
T_stop: waiting time at a stop before operation is resumed.
Ex 2)
[%] 100
2 _ _ 1 _ _
_
76

  

steady T acc T steady T dec T
dec T
H