Omron 3G3MV-PDRT2 - Inverter Control Input Word Allocation; Inverter Status Word Allocation; Simple Operation Programs; Special Remote I;O Programs

Chapter 9
9-13
Communications Programs (CS-series PLCs)
9-3 Special Remote I/O Programs
9-3-1 Simple Operation Programs
This section describes examples of simple operation programming using special remote I/O. To use
special remote I/O, it is necessary to switch the remote I/O operation. Refer to 5-2 Switching the
Remote I/O Function and change to the special remote I/O operation.
Once the Program Start Input Bit is turned ON, Inverter operations will continue until the Program
End Input is turned ON. The frequency (speed) reference specified in the DM Area (D01000) of the
PLC is repeatedly set in the Inverter. The output frequency value will be repeatedly read and stored
in the DM Area (D02000). The Inverter status will also be read repeatedly and stored in words
(0020**) allocated in the PLC.
If any communications error occurs, the program will stop and a stop command will be sent to the
Inverter. This state will continue until the Communications Fault Reset Input Bit is turned ON.
Note Write the program so that the Inverter operation commands (001000 and 001001) will be
turned OFF when the Fault Bit (002014) of the Inverter status turns ON, and also take appro-
priate countermeasures according to maintenance information in the SYSDRIVE 3G3MV
Multi-function General-purpose Inverter User's Manual.
■ Allocations
● Inverter Control Input Word Allocation
● Inverter Status Word Allocation
Word Function
001000 Forward/Stop (1: forward) Bit
001001 Reverse/Stop (1: reverse) Bit
001002 Multi-function Input 3 (set with n052) Bit
001003 Multi-function Input 4 (set with n053) Bit
001004 Multi-function Input 5 (set with n054) Bit
001005 Multi-function Input 6 (set with n055) Bit
001006 Multi-function Input 7 (set with n056) Bit
001007 Not used.
001008 External Fault Input (1: EFO) Bit
001009 Fault Reset (1: reset) Bit
Word Function
002000 During Run (1: during run) Bit
002001 Zero Speed (1: zero speed) Bit
002002 Frequency Agree (1: frequency agree) Bit
002003 Warning (minor fault) (1: alarm) Bit
002004 Frequency Detect 1 (1: output frequency
≤
n095) Bit