Mitsubishi Electric FR-A720-0.4K Instruction Manual page 348

Communication operation and setting
(6) Modbus registers
System environment variable
Register
40002 Inverter reset
40003 Parameter clear
40004 All parameter clear
40006 Parameter clear
40007 All parameter clear
40009 Inverter status/control input instruction
40010 Operation mode/inverter setting
40014 Running frequency (RAM value)
40015 Running frequency (EEPROM value)
*1 The communication parameter values are not cleared.
*2 For write, set the data as a control input instruction. For read, data is read as an inverter operating status.
*3 For write, set data as the operation mode setting. For read, data is read as the operation mode status.
<Inverter status/control input instruction>
Bit
Control input instruction
0
1 Forward rotation command
2 Reverse rotation command
3 RH (high speed operation command)
4 RM (middle speed operation command)
5 RL (low speed operation command)
6 JOG (Jog operation)
7 RT (second function selection)
8 AU (current input selection)
9 (selection of automatic restart after
instantaneous power failure)
10 MRS (output stop)
11 STOP (start self-holding)
12
13
14
15
*1 The signal within parentheses is the initial setting. The description changes depending on the setting of Pr. 180 to Pr. 189 (input
terminal function selection) (page 222).
Each assigned signal is valid or invalid depending on NET. (Refer to page 307)
*2 The signal within parentheses is the initial setting. The description changes depending on the setting of Pr. 190 to Pr. 196 (output
terminal function selection) (page 230).
338
Definition
*1
*1
*3
Definition
Stop command
*1
*1
*1
*1
*1
*1
CS
*1
*1
*1
RES (reset)
*1
0
0
0
Read/Write
Write
Write
Write
Write
Write
Read/write
*2
Read/write
Read/write
Write
Inverter status
RUN (inverter running)
*2
Forward rotation
Reverse rotation
SU (up to frequency)
*2
OL (overload)
*2
IPF (instantaneous power failure)
FU (frequency detection)
ABC1 (alarm)
*2
⎯
ABC2 ( )
*2
0
0
0
0
0
0
Alarm occurrence
Remarks
Any value can be written
Set H965A as a written value.
Set H99AA as a written value.
Set H5A96 as a written value.
Set HAA99 as a written value.
See below.
See below.
According to the Pr. 37 and Pr. 144 settings, the
frequency and selectable speed are in 1r/min
increments.
<Operation mode/inverter setting>
Read
Mode
Value
EXT H0000
PU H0001
EXT
H0002
JOG
PU
H0003
*2
JOG
*2
NET H0004
PU+
H0005
EXT
The restrictions depending on the
operation mode changes according
to the computer link specifications.
Written
Value
H0010
⎯
⎯
⎯
H0014
⎯