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Communication operation and setting
4
PARAMETERS
(6) Modbus registers
System environment variable
*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.
Register Definition Read/Write Remarks
40002 Inverter reset Write Any value can be written
40003 Parameter clear Write Set H965A as a written value.
40004 All parameter clear Write Set H99AA as a written value.
40006 Parameter clear
*1 Write Set H5A96 as a written value.
40007 All parameter clear
*1 Write Set HAA99 as a written value.
40009 Inverter status/control input instruction
*2 Read/write See below.
40010 Operation mode/inverter setting
*3 Read/write See below.
40014 Running frequency (RAM value) Read/write
According to the Pr. 37 and Pr. 144 settings, the
frequency and selectable speed are in 1r/min
increments.
40015 Running frequency (EEPROM value) Write
<Inverter status/control input instruction>
*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) (page122).
Each assigned signal is valid or invalid depending on NET. (Refer to page 204)
*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) (page128).
Bit
Definition
Control input instruction Inverter status
0 Stop command RUN (inverter running) *2
1 Forward rotation command Forward rotation
2 Reverse rotation command Reverse rotation
3 RH (high speed operation command) *1 SU (up to frequency) *2
4 RM (middle speed operation command) *1 OL (overload) *2
5 RL (low speed operation command) *1 IPF (instantaneous power failure) *2
6 JOG (Jog operation) *1 FU (frequency detection) *2
7 RT (second function selection) *1 ABC1 (fault) *2
8 AU (current input selection) *1
ABC2 (⎯) *2
9
CS
(selection of automatic restart after
instantaneous power failure)
*1
0
10 MRS (output stop) *1 0
11 STOP (start self-holding) *1 0
12 RES (reset) *1 0
13 0 0
14 0 0
15 0 Fault occurrence
<Operation mode/inverter setting>
* Writing is available depending on the
Pr. 79 and Pr. 340 setting. Refer to
page 203 for details.
The restrictions depending on the
operation mode changes according
to the computer link specifications.
Mode
Read
Value
Written
Value
EXT H0000 H0010 *
PU H0001 H0011 *
EXT
JOG
H0002 ⎯
PU
JOG
H0003 ⎯
NET H0004 H0014
PU+
EXT
H0005 ⎯