Mitsubishi Electric 800 Series Function Manual page 32

(N) Operation via communication and its settings
Details of remote register
 Remote register (master module to inverter)
• Remote register definition
Device
Signal
No.
RWw0
Set frequency 
Torque command
value
RWw2

Torque limit value
RWw4 PID set point

PID measured
RWw5
value

RWw6 PID deviation

RWw10,
RWw12,
Link parameter
RWw14,
extended setting/
RWw16,
Instruction code
RWw18,
RWw1A
RWw11,
RWw13,
RWw15,
Write data
RWw17,
RWw19,
RWw1B
RWw21 Fault history No.
RWw26 Monitor code 1
RWw27 Monitor code 2
RWw28 Monitor code 3
RWw29 Monitor code 4
RWw2A Monitor code 5
RWw2B Monitor code 6
RWw2C Monitor code 7
RWw2D Monitor code 8
RWw2E Monitor code 9
RWw2F Monitor code 10

Setting increment differs according to the combination of Pr.37, Pr.144, and Pr.811.
Refer to the Instruction Manual (Detailed) of the inverter for the details.

When Pr.541 Frequency command sign selection = "1", the setting value has either + or -. When the setting value is negative, the command
is the inverse from the command.
Setting range: -327.68 Hz to 327.67 Hz (-327.68 to 327.67) 0.01 Hz increments.
For details refer to

When Pr.128 = "50, 51, 60, 61", they are valid. If the data outside the range is set, the previous setting is retained.
Refer to the Instruction Manual (Detailed) of the inverter for details of Pr.128.

Write data is in hexadecimal, and only two digits are valid. (The upper two digits are ignored.)

The value in RWw2 is used as the torque limit value during speed control or position control, and as the torque command value during torque
control. (Torque control cannot be performed with a PM motor.) To use the value as the torque limit value, set Pr.810 = "2".
32
PARAMETER
• Specify the set frequency or rotations per minute (machine speed). At this time, whether to write to
RAM or EEPROM is decided with the RY21 and RY22 settings. After setting the set frequency in this
, register, set "1" in RY21 or RY22 to write the frequency. After writing of frequency is completed, "1" is

set in RX21 or RX22 in response to the input command.
• The setting range is 0 to 590.00 Hz (0.01 Hz increments). Write "59000" when setting 590.00 Hz.
Specify the torque command value / torque limit value. Set Pr.804 Torque command source selection
= "1, 3, 5, or 6" to activate this signal under Real sensorless vector control, vector control, and PM
sensorless vector control. The value is written to the inverter either by RY23 or RY24. Pr.805 Torque
command value (RAM) and Pr.806 Torque command value (RAM, EEPROM) are updated as well.
The setting range and setting increments depend on the Pr.804 setting. (Refer to
Set the PID set point
Setting range: 0 to 100.00%
Set the PID measured value
Setting range: 0 to 100.00%
Set the PID deviation.
Setting range: -100.00% to 100.00%
Set an instruction code (refer to
read/write, alarm reference, and alarm clear in the lower eight bits. The instructions are executed in the
following order by setting "1" in RY25 after completing the register setting: RWw10, 12, 14, 16, 18, then
1A. After completing the execution up to RWw1A, "1" is set in RX25. Set HFFFF to disable an instruction
by RWw10 to 1A.
Set the link parameter extended setting in the upper eight bits.
Example) When reading Pr.160, instruction code is H0200.
Set the data specified by the instruction code of RWw10, 12, 14, 16, 18 and 1A (when required).
RWw10, 12, 14, 16, 18, and 1A correspond to RWw11 13, 15, 17, 19, and 1B, respectively.
Set "1" in RY25 after setting the instruction codes (RWw10, 12, 14, 16, 18, and 1A) and the
corresponding register.
Set "0" when the write code is not required.
Set the number of previous faults you want to be able to read in the fault history.
Up to 7 previous faults can be read.

Last two digits: H00 (most recent fault) to H07 (7th most recent fault)
Set H08 to HFF to make the fault history No. to "0."




Set the monitor code to be monitored (refer to

specified monitored data is stored in RWr26 to RWr2F.

If a monitor code out of the setting range is set, no item is monitored (the monitor value is fixed to 0).




page 24.
Description
• Input a value 100 times greater than the value to be set.
For example, input "10000" when setting 100.00%.
• Refer to the Instruction Manual (Detailed) of the inverter for
details of PID control.
page 34) for an operation such as operation mode switching, parameter
page 35). By setting "1" in RY20 after setting, the
page 36.)