Remote Output Function (Rem Signal, Pr. 495 To Pr. 497) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Function assignment of external terminal and control

4.15.10 Remote output function (REM signal, Pr. 495 to Pr. 497)

You can utilize the ON/OFF of the inverter's output signals instead of the remote output terminal of the
programmable logic controller.
Parameter
Name
Number
495 Remote output selection
496 * Remote output data 1
497 * Remote output data 2
* The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr.
77 Parameter write selection.
<Remote output data>
Pr. 496
b11
Pr. 497
b11
*1 As desired
*2 Y0 to Y6 are available only when the extension output option (FR-A7AY)
is fitted
*3 RA1 to RA3 are available only when the relay output option (FR-A7AR) is
fitted
Example)When "96" (positive logic) is set in Pr. 190 RUN terminal function selection and "1" (H01) is set in Pr. 496,
the terminal RUN turns ON.
ON/OFF example for positive logic
Pr. 495 = 0, 10 Pr. 495 = 1, 11
Power Power
OFF
supply
supply
REM OFF REM
REM signal clear
Signal condition during a reset
Pr. 495 = 0, 1
Reset ON
REM ON OFF
∗
* When Pr. 495 = "1," the signal condition saved in EEPROM
(condition of the last power OFF) is applied.
REMARKS
⋅ The output terminal where the REM signal is not assigned using any of Pr. 190 to Pr. 196 does not turn ON/OFF if 0/1 is set to the
terminal bit of Pr. 496 or Pr. 497. (It turns ON/OFF with the assigned function.)
CAUTION
⋅ When Pr. 495 = "1, 11" (remote output data retention at power OFF), connect R1/11 with P/+, and S1/L21 with N/- so that the
control power is retained. If you do not take such a step, the output signals provided after power-ON are not guaranteed.
♦ Parameters referred to ♦
⋅
Pr. 190 to Pr. 196 (output terminal function selection)
250
Initial Setting
Value
0
0 0 to 4095
0 0 to 4095
OFF
Inverter
reset time
(about 1s)
ON
REM signal held
REM signal is saved
Pr. 495 = 10, 11
Reset ON
REM ON
Range
0 Remote output data clear at powering OFF Remote output data
Remote output data retention even at
1
powering OFF
10 Remote output data clear at powering OFF Remote output data
Remote output data retention even at
11
powering OFF
Refer to the following diagram.
⋅ The output terminal can be turned ON/OFF depending
on the Pr. 496 or Pr. 497 setting. The remote output
b0
selection can be controlled ON/OFF by computer link
communication from the PU connector or RS-485 port
or by communication from the communication option.
⋅ Set "96" (positive logic) or "196" (negative logic) to any
of Pr. 190 to Pr. 196 (output terminal function selection),
and assign the remote output (REM) signal to the
b0
terminal used for remote output,
⋅ When you refer to the diagram on the left and set 1 to
the terminal bit (terminal where the REM signal has
been assigned) of Pr. 496 or Pr. 497, the output terminal
turns ON (OFF for negative logic). By setting 0, the
output terminal turns OFF (ON for negative logic).
⋅ When Pr. 495 = "0 (initial value), 10", performing a power
supply reset (including a power failure) clears the REM signal
output. (The ON/OFF status of the terminals are as set in Pr.
190 to Pr. 196.) The Pr. 496 and Pr. 497 settings are also "0".
When Pr. 495 = "1, 11", the remote output data before power
supply-off is stored into the EEPROM, so the signal output at
power recovery is the same as before power supply-OFF.
However, it is not stored when the inverter is reset (terminal
reset, reset request through communication).
(See the chart on the left)
⋅ When Pr. 495 = "10, 11", the signal before the reset is held
even during an inverter reset.
Refer to page 239
Description
is cleared during an
inverter reset
is retained during an
inverter reset