338
PARAMETER
(4) Analog variable stall prevention operation
level setting [Pr. 22, 148, 149, 406*, 858*,
868*] (*not available for
)
For
, set [
Pr. 868 Terminal 1 function assignment
=
4] to set stall prevention operation level using
terminal 1 (analog input). (Refer to page 46 for
terminal1 function assignment)
For ,
set
[
Pr. 22 Stall prevention operation level
=
9999] to set stall prevention operation level using
terminal 1 (analog input).
At this time, other functions of terminal 1 (auxiliary
input, override function, PID control) do not function.
Input 0 to 5V (or 0 to 10V) to the terminal 1. For
selection of 5V and 10V, use [
Pr. 73 Analog input
selection
]. When [
Pr. 73
= 1] (initial value), 0 to
±
10V is
input.
For
, set [
Pr. 858 Terminal 4 function assignment
=
4] to set stall prevention operation level using
terminal 4 (analog input). When 4 is set in both [
Pr.
858
] and [
Pr. 868
], function of terminal 1 has higher
priority and terminal 4 has no function. (Refer to page
46 for terminal 4 function assignment)
Input 0 to 20mA to terminal 4. Turning ON of AU
signal is not necessary. PID control and speed
command from terminal 4 do not function even if the
AU signal turns ON.
For
, stall prevention operation level can not be
set using terminal 4.
When using
with FR-A7AZ, stall prevention
operation level can be also set to terminal 6 (analog
input). For this, set [
Pr. 406 High resolution analog input
selection
= 4]. When [
Pr. 858
= 4] and [
Pr. 868
= 4]
while [
Pr. 406 High resolution analog input selection
= 4],
terminal 6 is the stall prevention operation level, and
terminal 1 and terminal 4 does not have a function.
Set stall prevention operation level at 0V (0mA) input
voltage in [
Pr. 148 Stall prevention level at 0V input
] .
Set stall prevention operation level at 10V/5V(20mA)
input voltage in [
Pr. 149 Stall prevention level at 10V
input
].
(5) Stall prevention operation and limit of
fast-response current limit operation [Pr.
156]
Use [
Pr. 156
] to select whether stall prevention
operation or fast-response current limit operation will
be performed or not and the operation at OL signal
output.
When the load is heavy, or the acceleration/
deceleration time is short, stall prevention is activated
and acceleration/deceleration may not be made
according to the preset acceleration/deceleration
time. Set [
Pr. 156
] and stall prevention operation level
to the optimum values.
In vertical lift applications, make setting so that the
fast-response current limit is not activated. Torque
may not be produced, causing a drop due to gravity.
[Setting example]
Fan/Pump ................................................................ 0
Lifting device/traveling machine .............................. 9
(a stop distance at deceleration should not change)
F700
A700
F700
A700
F700
A700
F700
A700
100%
50%
Stall prevention
operation level (%)
(5V/10VDC)
(20mA)
(-5V/10VDC)
Set the current limit level at 10V/5V input
power (input current 20mA) using
Pr. 149
.
Set the current limit level at 0V input
voltage (input current 0mA) using [
Pr. 148
].
0V
0mA
Input current (mA)
Input voltage (V)
150%
120%
[Pr. 156]
Setting
Fast
Response
Current
Limit
*1
{
: Activated
z
: Not activated
Stall Prevention
Operation
Selection
{
: Activated
z
: Not activated
OL Signal
Output
{
: Operation Continued
z
: Operation is not
Continued
*2
Ac
ce
le
ra
tio
n
Cons
tan
t
sp
ee
d
De
ce
le
ra
tio
n
0
(initial value)
{
{
{
{
{
1
z
{
{
{
{
2
{
z
{
{
{
3
z
z
{
{
{
4
{
{
z
{
{
5
z
{
z
{
{
6
{
z
z
{
{
7
z
z
z
{
{
8
{
{
{
z
{
9
z
{
{
z
{
10
{
z
{
z
{
11
z
z
{
z
{
12
{
{
z
z
{
13
z
{
z
z
{
14
{
z
z
z
{
—
*3
15
z
z
z
z
—
*4
16
{
{
{
{
z
17
z
{
{
{
z
18
{
z
{
{
z
19
z
z
{
{
z
20
{
{
z
{
z
21
z
{
z
{
z
22
{
z
z
{
z
23
z
z
z
{
z
common
A700 F700
E700 D700
Summary of Contents for FR-A700 Series
Page 245: ...279 2 PARAMETER PARAMETER MEMO ...
Page 440: ...474 PARAMETER MEMO ...
Page 522: ...556 SELECTION MEMO ...
