Lenze EVF9383 - Manual (Page 80)

Configuration
2−72
l
EDSVF9383V−EXT EN 2.0
2.4.16.2 Function 2: CMP1−IN1 > CMP1−IN2
l Selection: C0680 = 2
l This function is used to find out whether the actual speed is higher than a limit value (n
act.
>
n
x
)" for one direction of rotation.
CMP1−OUT
CMP1−IN1 CMP1−IN2
1
0
C0681
CMP1−IN2
C0681
t
CMP1−IN1
t
CMP1−OUT
Fig. 2−55 Exceeding signal values (CMP1−IN1 > CMP1−IN2)
Function procedure
1. If the value at CMP1−IN1 exceeds the value at CMP1−IN2, CMP1−OUT changes from LOW to
HIGH.
2. If the value at CMP1−IN1 undershoots the value at CMP1−IN2 minus C0681 again, CMP1−OUT
changes from HIGH to LOW.
2.4.16.3 Function 3: CMP1−IN1 < CMP1−IN2
l Selection: C0680 = 3
l This function is used to find out whether the actual speed is lower than a limit value (n
act.
<
n
x
)" for one direction of rotation.
CMP1−OUT
CMP1−IN1 CMP1−IN2
1
0
C0681
CMP1−IN2
C0681
t
CMP1−IN1
t
CMP1−OUT
Fig. 2−56 Undershooting signal values (CMP1−IN1 < CMP1−IN2)
Function procedure
1. If the value at CMP1−IN1 falls below the value at CMP1−IN2, CMP1−OUT changes from LOW
to HIGH.
2. If the value at CMP1−IN1 exceeds the value at CMP1−IN2 plus C0681 again, CMP1−OUT
changes from HIGH to LOW.