KEB COMBIVERT F5-A Applications Manual page 442

Special functions
Fig. 7.15.4
LE.21 Timer 1 /
I3
Mode
LE.26 Timer 2 /
I4
Mode
Timer mode (LE.21 / LE.26)
LE.21 and LE.26 determine the clock source and the counting direction of timer 1 and 2. Clock pulse source can
be the time counter in 0.01s or 0.01h grid, pulses from a digital input, or revolutions of the encoder on encoder
channel 1. The timer runs generally as long as a starting condition is active. After a reset the timer starts again
at zero. Following clock sources can be selected:
Bit Meaning
Selection clock
0...2
pulse source
Page 7.15 - 10
Timer programming
continues to count
Timer counts up to maximum
value; down to 0, if a condition
of LE.18 is fulfilled or an input
of LE.17 is set
ru.43 timer 1 display
Resetting to zero
continues to count
Timer counts up to maximum
value; down to 0, if a condition
of LE.23 is fulfilled or an input
of LE.22 is set
ru.44 timer 2 display
Resetting to zero
LE.21 / LE.26: Timer 1 / 2 mode
Value
0: 0,01s (internally
clock)
1: 0,01h (internally
clock)
2: every edge T1-I3 /
T2-I4
3: positive edge T1-I3 /
T2-I4
4: Rotation encoder 1
5... 7: reserved
COMBIVERT F5-A, -E, -H
Is a
reset condition
no
of LE.20 or LE.19 Timer value > Level
fulfilled ?
yes
Is a
Is a reset condition
no
Timer value > Level
of LE.25 or LE.24
fulfilled ?
yes
Explanation
The timer value increases / decreases every 10 ms by 0.01
The timer value increases / decreases every 36s by 0.01
Each edge on I3 (for timer 1) or I4 (for timer 2) increases /
decreases the timer value by 0.01
A rising edge on I3 (for timer 1) or I4 (for timer 2) increases
/ decreases the timer value by 0.01
Each revolution (clockwise rotation and counter clockwise
rotation) of the encoder on channel 1 increases / decreases
the timer value by 0.01
no
Switching condition
yes
37 „Timer 1 > Level A"
LE.0...LE.7 ?
is being set!
no
Switching condition
yes
38 „Timer 2 > Level A"
LE.0...LE.7 ?
is being set!
© KEB, 2012-10