PARAMETERS

(2)Set the desired frequencies and voltages in Pr. 100 to Pr. 109.

The setting must satisfy the following relationship: F1F2F3F4F5Pr. 3 "base frequency". If the set frequencies are the same, a write error occurs.

If any frequency setting is "9999", its point is ignored.

Note: 1. The V/F 5-point flexible characteristic functions for V/F control only.

2.These functions are activated only when Pr. 60 = 0.

3.The frequency voltage setting should be equal to or less than the Pr. 3 and Pr. 19 settings.

4.Pr. 19 must be set. (When Pr. 19 = "9999", Pr. 71 cannot be set to "2" (5-point flexible V/F characteristic).)

5.If "2" is set in Pr. 71, Pr. 47 and Pr. 113 do not function.

6.When "2" is set in Pr. 71, the electronic overcurrent protection is calculated for a standard motor.

4.2.39Computer link operation (Pr. 117 to Pr. 124)

Pr. 117 "station number"

Pr. 118 "communication speed"

Pr. 119 "stop bit length/data length"

Pr. 120 "parity check presence/absence"

Pr. 121 "number of communication retries"

Pr. 122 "communication check time interval"

Pr. 123 "waiting time setting"

Pr. 124 "CR LF presence/absence selection"

Used to perform required settings for RS-485 communication between the inverter and personal computer. Using the inverter setup software (FR-SW0-SETUP-WE (or -WJ for Japanese version)), parameter setting, monitoring, etc. can be done efficiently.

#The motor can be run from the PU connector of the inverter using RS-485 communication.

4

Communication specifications

 

 

 

 

 

 

 

 

 

 

 

Conforming standard

 

RS-485

 

 

 

Number of inverters connected

1:N (maximum 32 inverters)

 

 

 

Communication speed

 

Selected between 19200, 9600 and 4800bps

 

 

 

Control protocol

 

Asynchronous

 

 

 

Communication method

Half-duplex

 

 

 

Communication specifications

Character system

 

ASCII (7 bits/8 bits) selectable

 

 

 

Stop bit length

 

Selectable between 1 bit and 2 bits.

 

 

 

 

 

 

 

 

 

Terminator

 

CR/LF (presence/absence selectable)

 

 

 

 

Check system

 

Parity check

Selected between presence (even/odd) or absence

 

 

 

 

 

Sumcheck

Present

 

 

 

 

 

 

 

 

 

 

Waiting time setting

Selectable between presence or absence

 

 

109

Page 122
Image 122
Mitsumi electronic 55K, FR-F520-0.75K instruction manual Computer link operation Pr to Pr