Lenze 9300 vector Series, Системное руководство

Страница: 105 / 232

Configuration
2−97
l
EDSVF9383V−EXT EN 2.0
2.4.31 Counter (FCNT)
This FB is used for digital counting up and down.
FCNT1−CLKUP
C1102/1
FCNT1−CLKDWN
C1102/2
C1104/1
C1104/2
FCNT1−LD−VAL
C1101/1
C1103/1
FCNT1−LOAD
C1102/3
C1104/3
FCNT1−OUT
FCNT1−EQUAL
C1101/2
C1103/2
FCNT1−CMP−VAL
C1100
CTRL
FCNT1
Fig. 2−79 Counter (FCNT1)
Signal Source Note
Name Type DIS DIS format CFG List
FCNT1−CLKUP d C1104/1 bin C1102/1 2 LOW−HIGH edge = counts up by 1
FCNT1−CLKDWN d C1104/2 bin C1102/2 2 LOW−HIGH edge = counts down by 1
FCNT1−LD−VAL a C1103/1 dec C1101/1 1 Start value
FCNT1−LOAD d C1104/3 bin C1102/3 2
·
HIGH = Accept start value
·
The input has the highest priority
FCNT1−CMP−VAL a C1103/2 dec C1101/2 1 Comparison value
FCNT1−OUT a − − − − Counter limited to ±199.99 %
FCNT1−EQUAL d − − − − HIGH = comparison value reached
Setting start value
l
As long as FCNT1−LOAD = HIGH, the value at FCNT1−LD−VAL (start value) is switched to
FCNT1−OUT.
l
When FCNT1−LOAD = LOW, the counter is enabled for counting up and down.
l When FCNT1−LOAD = HIGH, the counter is reset to the value at FCNT1−LD−VAL.
Counting up/down
l
A LOW−HIGH signal at FCNT1−CLKUP increases the counter by 1.
l A LOW−HIGH signal at FCNT1−CLKDWN reduces the counter by 1.