Mitsubishi Electronics FR-F700 Adjustable 5 points V/F, Communication initial setting, Pr to

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Pr. 100 to 109

Adjustable 5 points V/F

Pr.100 V/F1 (first frequency)	Pr.101 V/F1 (first frequency voltage)
Pr.102 V/F2 (second frequency)	Pr.103 V/F2 (second frequency voltage)
Pr.104 V/F3 (third frequency)	Pr.105 V/F3 (third frequency voltage)
Pr.106 V/F4 (fourth frequency)	Pr.107 V/F4 (fourth frequency voltage)
Pr.108 V/F5 (fifth frequency)	Pr.109 V/F5 (fifth frequency voltage)

A dedicated V/F pattern can be made by freely setting the V/F characteristic between a startup and the base frequency and base voltage under V/F control (frequency voltage/frequency).

Possible to set the torque pattern that is optimum for the machine’s characteristic

Voltage
Base frequency
voltage
Pr.19		V/F5
		V/F4
	V/F3
Torque boost	V/F1
Pr.0	V/F2	Frequency

0	Base frequency
	V/F Characteristic Pr.3

⋅Adjustable 5 points V/F will not function under simple magnetic flux vector control.

⋅When Pr. 19 Base frequency voltage = "8888" or "9999", Pr. 71 cannot be set to "2". To set Pr. 71 to "2", set the rated voltage value to Pr. 19

⋅When the frequency values of the points are the same, a write

inhibit error ( ) occurs.

⋅Set the points (frequencies, voltages) of Pr. 100 to Pr. 109 within the ranges of Pr. 3 Base frequency and Pr. 19 Base frequency voltage .

⋅When “2” is set in Pr. 71, Pr. 47 Second V/F (base frequency) will not function.

⋅When “2” is set in Pr. 71, thermal characteristic of the electronic thermal relay function changes to thermal characteristics of a standard motor.

Pr. 117 to 124, 331 to 337, 341 to 343, 549

Pr.	Setting Range	Description
Number
117	0 to 31	Specify the inverter station number.
		Set the inverter station numbers when two
331	(0 to 247) *1	or more inverters are connected to one
		personal computer.
		Set the communication speed.
118	48, 96, 192, 384	The setting value × 100 equals the
		communication speed.
332	(3, 6, 12, 24) *2
		For example, the communication speed is
		19200bps when the setting value is "192".
		Stop bit length	Data length
119	0	1bit	8bit
	1 (initial value)	2bit
333
	10	1bit	7bit
	11	2bit
120	0	Without parity check
	1	With odd parity check
334
	2 (initial value)	With even parity check
		Set the permissible number of retries at
		occurrence of a data receive error. If the
121	0 to 10	number of consecutive errors exceeds the
		permissible value, the inverter will come to
335
		an alarm stop.
	9999	If a communication error occurs, the
		inverter will not come to an alarm stop.
		No PU connector communication
	0	Communication with RS-485 terminal can
		be made, but the inverter will come to an
		alarm stop in the NET operation mode.
122		Set the interval of communication check
336		time.
	0.1 to 999.8s	If a no-communication state persists for
		longer than the permissible time, the
		inverter will come to an alarm stop.
	9999 (initial value)	No communication check
123	0 to 150ms	Set the waiting time between data
		transmission to the inverter and response.
337
	9999 (initial value)	Set with communication data.
124	0	Without CR/LF
	1 (initial value)	With CR
341
	2	With CR/LF

*1 When making communication through Modbus-RTU protocol with the RS- 485 terminals, the setting range of Pr. 331 within parenthesis is applied.

*2 The values in parenthesis are added to the setting range of Pr. 332.

		Features
Peripheral Devices		Why energy		savings?
	Standard		Specifications
Outline		Dimension		Drawings
Terminal Connection	Diagram		Terminal Specification		Explanation
	Operation		Panel
	Parameter		List
Explanations		of		Parameters
	Protective		Functions

Communication initial setting

Pr.117 PU communication station	Pr.118 PU communication speed
Pr.119 PU communication stop bit length.	Pr.120 PU communication parity check
Pr.121 Number of PU communication retries	Pr.122 PU communication check time interval
Pr.123 PU communication waiting time setting
Pr.124 PU communication CR/LF presence/absence selection
Pr.331 RS-485 communication station	Pr.332 RS-485 communication speed
Pr.333 RS-485 communication stop bit length
Pr.334 RS-485 communication parity check selection
Pr.335 RS-485 communication number of retries	Pr.336 RS-485 communication check time interval
Pr.337 RS-485 communication waiting time setting
Pr.341 RS-485 communication CR/LF selection	Pr.342 Communication EEPROM write selection
Pr.343 Communication error count	Pr.549 Protocol selection

(1)Initial settings and specifications of RS-485 communication (Pr.117 to Pr.124, Pr.331 to Pr.337, Pr.341)

Used to perform required settings for RS-485 communication between the inverter and personal computer.

￿There are two different communications: communication using the PU connector of the inverter and communication using the RS-485 terminals.

￿You can perform parameter setting, monitor, etc. using the Mitsubishi inverter protocol or Modbus-RTU protocol.

￿To make communication between the personal computer and inverter, initialization of the communication specifications must be made to the inverter.

Data communication cannot be made if the initial settings are not made or there is any setting error.

(2) Communication EEPROM write selection (Pr.342)			Options
terminals or from the communication option can be written to
Parameters written via the inverter's PU connector or RS-485
the RAM. When performing parameter change frequently, set
"1" in Pr. 342.
			Instructions
(3) Modbus-RTU communication specifications (Pr.343,
Pr.549)
* The Modbus-RTU protocol is valid for only communication from the RS-485
terminals.
Pr. Number	Setting	Description	Motor
	Range
343		Display the number of communication
		errors during Modbus-RTU communication.
		Reading only	Compatibility
	0	Mitsubishi inverter (computer link) protocol
	(initial value)
549
	1	Modbus-RTU protocol
			Warranty
			Inquiry

Pr. indicates simple mode parameters and Pr. indicates extended parameters. When setting parameters, refer to the instruction manual (applied) and understand instructions. 38