LS Industrial Systems SV-iE5 Series, Руководство пользователя, Страница: 72 / 127

Chapter 10. Advanced Functions
10-5
10.4
3-Wire operation
Group Code Parameter Name Setting Range Initial Unit
P66 Multi-function Input terminal P1 select] 0 0
~ ~
PG Group
P70 Multi-function Input terminal P5 select 17
0 ~ 24
4
ƒ Select a terminal from P1-P5 for use as 3-Wire operation.
ƒ If P5 is selected, set P70 to 17(3-Wire operation).
Input signal is latched (saved) in 3-Wire operation. Therefore, inverter can be operated by Push-button
switch.
The bandwidth of pulse (t) should not be less than 50msec.
10.5
Dwell operation
Group Code Parameter Name Setting Range Initial Unit
P31 Dwell frequency -
0 ~ 200
5.0
Hz PG Group
P32 Dwell time - 0 ~ 10 0.0 sec
ƒ In this setting, a motor begins to accelerate after dwell operation is executed for dwell time at the specified
dwell frequency.
ƒ It is mainly used to release mechanical brake in elevators after operating at dwell frequency.
Dwell frequency: This function is used to output torque in an intended direction. It is useful in hoisting
applications to get enough torque before releasing a mechanical brake. Rated Slip frequency is calculated
by the formula shown below.
P1
P2
P5
CM
FX : P66 = 0
RX : P67 = 1
3-Wire : P70 = 17
FX
RX
Frequency
P5 (3-Wire)
t