(N) Operation via communication and its settings
56
Details of input and output signals
The following device No. are those for station 1. For stations 2 and later, the device No. are different. (Refer to the master
module manual for correspondence between the device No. and station number)
Output signals (master module to inverter)
The output signals from the master module are indicated. (Input signals to inverter)
Signal names are initial values. Using
Pr.180 to Pr.189
, you can change input signal functions. Note that some of signals do not accept a
command from the network according to the
Pr.338
and
Pr.339
settings. For example, the RES signal (the function assigned to terminal RES) in
RYB cannot be controlled via network. Refer to the Instruction Manual (Detailed) of the FR-A800/FR-F800 inverter for details of
Pr.180 to
Pr.189
,
Pr.338
, and
Pr.339
.
For the FR-F800-E, no function is assigned in the initial setting.
The signals are fixed. They cannot be changed using parameters.
While "1" is set in the frequency setting command (RYD), the set frequency (RWw1) is always applied.
If "1" is set in these registers at the same time while
Pr.544
= "0," only one of these is executed.
The torque command / torque limit setting is available only for the FR-A800-E.
Refer to
for operation conditions of inverter reset.
Torque control cannot be performed with a PM motor.
Device No.
Signal
Description
RY0
Forward rotation command
0: Stop command
1: Forward rotation start
When "1" is set, a start command is input to the inverter.
When "1" is set in RY0 and RY1, a stop command is input.
RY1
Reverse rotation command
0: Stop command
1: Reverse rotation start
RY2
High-speed operation command
(terminal RH function)
Functions assigned to terminals RH, RM, RL, JOG, RT, AU, CS, MRS, STOP, and RES
are activated.
RY3
Middle-speed operation command
(terminal RM function)
RY4
Low-speed operation command
(terminal RL function)
RY5
Jog operation command
(terminal Jog function)
RY6
Second function selection
(terminal RT function)
RY7
Current input selection
(terminal AU function)
RY8
Selection of automatic restart after
instantaneous power failure
(terminal CS function)
RY9
Output stop
(terminal MRS function)
RYA
Start self-holding selection
(terminal STOP function)
RYB
Reset (RES terminal function)
RYC
Monitor command
When "1" is set in RYC, the monitored value is set in the remote register RWr0, 1, 4 to
7, and "1" is set in the monitoring (RXC). While "1" is set in RYC, the monitored data is
always updated.
RYD
Frequency setting command /
torque command
(RAM)
When "1" is set in RYD, the set frequency/torque command (RWw1) is written to RAM
of the inverter.
After the writing completes, "1" is set in the frequency setting / torque command
completion (RXD).
Under Real sensorless vector control, vector control, and PM sensorless vector
control, the following value is also written to RAM at the same time.
• During torque control
: Torque command value
• During speed control / position control: Torque limit value
RYE
Frequency setting command /
torque command
(RAM, EEPROM)
When "1" is set in RYE, the set frequency/torque command (RWw1) is written to RAM
and EEPROM of the inverter. After the writing completes, "1" is set in the frequency
setting / torque command completion (RXE).
Under Real sensorless vector control, vector control, and PM sensorless vector
control, the following value is also written to RAM and EEPROM at the same time.
• During torque control
: Torque command value
• During speed control / position control: Torque limit value (
Pr.544
≠
"24 or 28")
To change the frequency consecutively, be sure to write data to the inverter RAM.
RYF
Instruction code execution request
When "1" is set in RYF, processes corresponding to the instruction codes set to
RWw2, 10, 12, 14, 16 and 18 are executed. "1" is set in the instruction code execution
request (RXF) after completion of instruction codes. When an instruction code
execution error occurs, a value other than "0" is set in the reply code (RWr2, 10, 12,
14, 16, 18).
RY1A
Error reset request flag
When "1" is set in RY1A at an inverter fault, the inverter is reset, then "0" is set in the
error status flag (RX1A).
