Details Of Remote Input And Output Signals - Mitsubishi Electric FR-A820-00046 Instruction Manual

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5.21.3

Details of remote input and output signals

The following device numbers are for station 1. For stations 2 and later, the device numbers are dif-
ferent. (Refer to the Master Module User's Manual for correspondence between the device number
and station number.)
Output signals from the master module (input signals to the inverter)
Device No. Signal
RY0 Forward rotation command
RY1 Reverse rotation command
High-speed operation command
RY2
(terminal RH function)
Middle-speed operation command
RY3
(terminal RM function)
Low-speed operation command
RY4
(terminal RL function)
Jog operation command (terminal JOG
RY5
function)
Second function selection (terminal RT
RY6
function)
Current input selection (terminal AU
RY7
function)
Selection of automatic restart after
RY8 instantaneous power failure (terminal CS
function)
RY9 Output stop (terminal MRS function)
Start self-holding selection (terminal
RYA
STOP function)
RYB Reset (RES terminal function)
RY20 Monitor command
RY21 Frequency setting command (RAM)
Frequency setting command (RAM,
RY22
EEPROM)
RY23 Torque command / torque limit (RAM)
Torque command / torque limit (RAM,
RY24
EEPROM)
RY25 Instruction code execution request
Tab. 5-346: Output signals from the master module(1)
5 - 752
Description
0: Stop command
1: Forward rotation start
0: Stop command
1: Reverse rotation start
Functions assigned to terminals RH, RM, RL, JOG, RT, AU, CS, MRS, STOP and RES
are activated
Signal names are initial values. Using Pr.180 to Pr.189, input signal functions can
be changed. Note that some of signals do not accept a command from the
network according to the Pr. 338 and Pr. 339 settings. For example, RYB reset
(terminal RES function) cannot be controlled via network.
When "1" is set in the monitor command (RY20), the monitored value is set in the
remote register RWr26 to RWr2F, and "1" is set in the monitoring (RX20). While "1" is
set in the monitor command (RY20), the monitored data is always updated.
When "1" is set in the frequency setting command (RY21), the set frequency (RWw0) is
written to RAM of the inverter. While "1" is set, the set frequency (RWw0) is always
applied.
After the writing completes, "1" is set in the frequency setting completion (RX21).
When "1" is set in the frequency setting command (RY22), the set frequency (RWw0) is
written to RAM and EEPROM of the inverter.
After the writing completes, "1" is set in the frequency setting completion (RX22).
To change the frequency consecutively, be sure to write data only to the inverter RAM.
When "1" is set in the torque command / torque limit (RY23), the set torque command
/ torque limit (RWw2) is written to RAM of the inverter.
After the writing completes, "1" is set in the torque command / torque limit setting
completion (RX23). The following value is written to RAM:
During torque control : Torque command value
During speed control / position control: Torque limit value
When "1" is set in the torque command / torque limit (RY24), the set torque command
/ torque limit (RWw2) is written to RAM and EEPROM of the inverter. After the writing
completes, "1" is set in the torque command / torque limit setting completion (RX24).
The following value is written to RAM and EEPROM:
During torque control : Torque command value
During speed control / position control: Torque limit value
To change the torque command or the torque limit consecutively, be sure to write
data to the inverter RAM.
When "1" is set in the instruction code execution request (RY25), processes
corresponding to the instruction codes set to RWw10, 12, 14, 16, 18 and 1A are
executed. "1" is set in the instruction code execution request (RX25) after completion
of instruction codes. When an instruction code execution error occurs, a value other
than "0" is set in the reply code (RWr10, 12, 14, 16, 18 and 1A).
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.
The signals are fixed. They cannot be changed
using parameters.
Parameters