56
SPECIFICATIONS
1.4.12 Inverter output stop (MRS)
(common)
(1) Output shutoff signal
Turning ON the output shutoff signal (MRS) during
inverter running shuts OFF the output immediately.
Terminal MRS may be used as described below.
1) To stop the motor by mechanical brake (e.g.
electromagnetic brake)
The inverter output is shut off when the
mechanical brake is operated.
2) To provide interlock to disable operation by the
inverter
With the MRS signal ON, the inverter cannot be
operated if the start signal is given to the inverter.
3) To coast the motor to stop
When the start signal is turned OFF, the motor
decelerates to stop according to the preset
deceleration time, but when the MRS signal is
turned ON, the motor coasts to stop.
*1
For MRS signal in
, set "24" to any of [
Pr.178 to
182 Input terminal function selection
] to assign the
function.
(2) MRS signal logic inversion
When [
Pr. 17
= 2] , the MRS signal (output stop) can
be changed to the normally closed (NC contact) input
specification. When the MRS signal turns ON
(opens), the inverter shuts off the output.
When
[
Pr. 17
= 4], the MRS
signal from external terminal (output stop) can be
changed to the normally closed (NC contact) input,
and the MRS signal from communication can be
changed to the normally open (NO contact) input.
This function is used to perform operation by
communication with MRS signal from external
terminal remained ON.
common
common
D700
ON
ON
MRS signal
STF (STR)
signal
Motor coasts
to stop
Time
[Pr. 17]
Setting
Terminal MRS Function
Available
Inverters
Normally
open input
Normally
closed input
0
{
(Communication,
external
terminal)
—
{
{
2
—
{
(Communication,
external
terminal)
{
{
4
{
(communication)
{
(external
terminal)
{
—
External
MRS
Signal
Communication
MRS Signal
[Pr. 17] Setting
0
2
4
OFF
OFF
Operation
enabled
Output
shutoff
Output
shutoff
OFF
ON
Output
shutoff
Output
shutoff
Output
shutoff
ON
OFF
Output
shutoff
Output
shutoff
Operation
enabled
ON
ON
Output
shutoff
Operation
enabled
Output
shutoff
common
A700
E700
D700
A700
E700
D700
F700
Output
stop
Output
stop
MRS
Inverter
MRS
Inverter
[
Pr.17 = 0
]
(Initial value)
[
Pr.17 = 2
]
SD
SD
Summary of Contents for FR-A700 Series
Page 245: ...279 2 PARAMETER PARAMETER MEMO ...
Page 440: ...474 PARAMETER MEMO ...
Page 522: ...556 SELECTION MEMO ...
