Mitsubishi Electronics FR-S500 instruction manual Operation mode-based functions

Communication parameters

2) Operation mode-based functions

Operation			Operation Mode
Location	Item	PU operation	External	Computer link
			operation	operation
Operation panel	Run command	Enabled	Enabled	Disabled
or FR-PU04	(start)		(Combined
			operation mode)
	Running frequency		Enabled
		Enabled	(Combined	Disabled
	setting
			operation mode)
	Monitoring	Enabled	Enabled	Enabled
	Parameter write	Enabled (*4)	Disabled	Disabled
	Parameter read	Enabled	Enabled	Enabled
	Inverter reset	Enabled	Enabled	Enabled
	Stop command	Enabled	Enabled (*3)	Enabled (*3)
On-computer	Run command	Disabled	Disabled	Enabled (*1)
user program by	Running frequency	Disabled	Disabled	Enabled (*1)
RS-485	setting (*)
communication
	Monitoring	Enabled	Enabled	Enabled
	Parameter write	Disabled	Disabled	Enabled (*4)
	Parameter read	Enabled	Enabled	Enabled
	Inverter reset	Disabled	Disabled	Enabled (*2)
	Stop command	Disabled	Disabled	Enabled
Control circuit	Inverter reset	Enabled	Enabled	Enabled
external terminal
	Run command	Enabled	Enabled	Enabled (*1)
		(Combined
		operation mode)
	Frequency setting	Enabled	Enabled	Enabled (*1)
		(Combined
		operation mode)

*1. As set in the communication parameters n8 "operation command source" and n9 "speed command source". (refer to page 147)

*2. At occurrence of RS-485 communication error, the inverter cannot be reset from the computer. *3. As set in Pr. 75 "reset selection/PU stop selection".

*4. As set in Pr. 77 "parameter write disable selection".

CAUTION

*When the user program of the computer is used to make the running frequency setting by RS-485 communication, setting can be made in the minimum setting increments of 0.01Hz, but the setting may be written to the inverter in increments of 0.1Hz. (0 is written in the second decimal place.)

POINT

To perform parameter write, give an operation command, make inverter reset, etc. using RS-485 communication, the operation mode must be changed to the "computer link operation mode".

Set "0", "2", "7" or "8" in Pr. 79 "operation mode selection" to select the external operation mode, and change the operation mode to the "computer link operation mode" in either of the following methods.

1)Set "1" in the communication parameter n10 "link startup mode selection" to start the inverter in the "computer link operation mode" at power on. (Refer to page 148 for the communication parameter n10.)

2)Using operation mode write (instruction code HFB), write H0000 to choose the "computer link operation mode". (Refer to page 141 for operation mode write.)

2

FUNCTIONS

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