Vaidnor VDF650 Series, User Manual

Page: 69 / 296

Operation
,
Display and Application Examples VDF650 User Manual
-
68
-
4
.
8
.
11 Use of the Counting Function
The count value needs to be collected by the DI terminal that is allocated with function 25
.
When the count value reaches PB
-
08
(
Set count value
),
the DO terminal allocated with
function 8
(
Set count value reached
)
becomes ON
.
Then the counter stops counting
.
When the count value reaches PB
-
09
(
Designated count value
),
the DO terminal allocated
with function 9
(
Designated count value reached
)
becomes ON
.
The counter continues to
count until
"
Set count value
"
is reached
.
Figure 4
-
29 Parameter setting in the counting mode
P4
-
00 to P4
-
09
=
25
(
Counting
pulses input
)
P4
-
00 to P4
-
09
=
26
(
Counting reset
)
Counting
pulses
Counting
reset
U0
-
12
(
counting value
)
Pb
-
09
(
Designated
counting value
)
≥
P5
-
00 to P5
-
05
=
8
(
Designated
counting value reached
)
Reset
Clear
to 0
After the designated
counting value is
reached
,
set the DO
terminal to 1
.
≥
Pb
-
08
(
Set counting
value
)
P5
-
00 to P5
-
05
=
9
(
Set counting
value reached
)
Reset
After the set counting
value is reached
,
set
the DO terminal to 1
.
Counting reset input
Designated counting
value reached output
Set counting value
reached output
Counting
pulses input
U0
-
12
:
Counting value
Pb
-
09
=
11
U0
-
12
=
11
1 2 3 10 11 12
U0
-
12
=
0
19 20 21
Pb
-
08
=
20
U0
-
12
=
20
1 2
Note
• PB
-
09
(
Designated count value
)
must not be greater than PB
-
08
(
Set count value
).
• DI5 must be used when the pulse frequency is high
.
• The DO terminal that is allocated with function 9
(
Designated count value reached
)
and the DO
terminal that is allocated with function 8
(
Set count value reached
)
must not be the same
.
• In the RUN
/
STOP state of the AC drive
,
the counter will not stop until
"
Set count value
"
is
reached
.
• The count value is retentive at power failure
.
• An automatic stop system can be implemented if the signal output by the DO terminal with the
function
(
Count value reached
)
is fed back to the DI terminal of the AC drive with stop function
.