Omron VARISPEED L7

6-53
6
Setting Example
When the timer function input is ON for longer than b4-01, the timer output function is turned ON. When the
timer function input is OFF for longer than b4-02, the timer output function is turned OFF. An example of
timer function operation is given in the following diagram.
Fig 6.21 Timer Function Operation Example
 Motor Contactor Answer Back Detection
The motor contactors can be observed using the motor contactor answer back function. Therefore an auxiliary
contact of the motor contactors must be connected to a digital input which is set to for this function
(H1-=86). If the contactor close command is set and no answer back signal comes from the contactor, the
inverter detects a SE1 fault (see below). Parameter S1-28 selects if the detection is enabled or disabled and
whether the SE1 fault is reset automatically or if has to be reset manually.
Related Parameters
Multi-function Digital Inputs (H1-01 to H1-05)
Parameter
No.
Name
Factory
Setting
Change
during
Operation
Control Methods
V/f
Open
Loop
Ve ct or
Closed
Loop
Vector
Closed
Loop
Vector
(PM)
S1-28
Selects how a SE1 fault is reset.
0: Manual Reset
1: Automatic reset at stop
2: No SE1 detection
0 No AAAA
Set
Val ue
Function
Control Methods
V/f
Open
Loop
Ve ct or
Closed
Loop ´
Ve ct or
Closed
Loop
Vector
(PM)
86 Motor contactor answer back Yes Yes Yes Yes
Timer function input
Timer function output