Mitsubishi Electric FR-A700 Technical Manual page 196

(1) Selection of digital input [Pr. 304]
16bit (12bit) digital input is available when [Pr. 304
9999].
Use [Pr. 304] to select BCD code input ([Pr. 304] = 0,
2, 10, 12) or binary input ([Pr. 304 = 1, 3, 11, 13]). For
BCD code, input data is read as decimal. For binary
input, input data is read as hexadecimal.
When 3 digits BCD code input or 12bit binary input is
selected, X12 to X15 signal of plug-in option FR-
A7AX is invalid.
When [Pr. 304 = 2, 3, 12, 13], output frequency is a
sum of digital input command and terminal 1
compensation input.
When switching the inputs e.g. between volume input
to perform manual operation and BCD code input to
perform automatic operation, set the BCD code input
to "0" under manual operation.
The priorities of the frequency setting are as follows.
"JOG Multi-speed operation (RH, RM, RL)
PID (X14) AU (terminal 4)
the FR-A7AX terminal 2" (When digital input is
valid, terminal 2 is invalid.)
[Example] To input BCD code 6325
BCD Code Input
Terminal
Digit
name
X0
X1
1
X2
X3
X4
X5
10
X6
X7
X8
X9
100
X10
X11
X12
X13
1000
X14
X15
* When the signal is used to enter a BCD code, 0A
0F entries are ignored during operation and the
H
previous inputs are used to continue operation. 0A
to 0F input are ignored.
H
If binary input is changed to BCD code input with
0A to 0F input, the set frequency becomes 0Hz.
H H
Digital command by
Terminal input Input
state value
ON
OFF
5
ON
OFF
OFF
ON
2
OFF
OFF
ON
ON
3
OFF
OFF
OFF
ON
6
ON
OFF
to
H
H
[Example] To input binary AB65
Terminal
name
X0
X1
X2
X3
X4
X5
X6
X7
X8
X9
X10
X11
X12
X13
X14
X15
(2) Data read timing [Pr. 305]
When [Pr. 305 = 0, 10], the set frequency data entered
from the digital signal input terminals (X0 to X15) is
always imported independently of whether the DY
signal of plug-in option FR-A7AX is ON or OFF.
When [Pr. 305 = 10], filter is active for reading, and
compensation for a digital signal change timing of
each bit is available.
Digital signal input
(terminal X0 to X15)
Set frequency
* Hold the digital signal input (X0 to X15) status for 20ms or more.
Changing the signal within 20ms may not reflect it on the set
frequency.
When [Pr. 305 = 1], the set frequency data entered
from the digital signal input terminals (X0 to X15) is
imported only when the DY signal is ON. The set
frequency data is not imported when the DY signal is
OFF. Therefore, even if the input status of the X0-X15
signal changes, the set frequency data before OFF of
the DY signal is valid.
Each terminal from X0 to X15 is all recognized as
OFF when the inverter is turned ON in terminal DY
OFF status.
Digital signal input
(terminal X0 to X15)
Data read timing signal
(terminal DY)
230
PARAMETER
H
Binary Input
Input
Terminal input value
state (hexade-
cimal)
ON
OFF
5
ON
OFF
OFF
ON
6
ON
OFF
ON
ON
B
OFF
ON
OFF
ON
A
OFF
ON
Filter [Pr. 305 = "10"]
20ms or more necessary*
Reflected on
the set frequency
20ms maximum
1ms or more
1ms or more
20ms or more
necessary
OFF ON
Input
value
(decimal)
43877
ON