Adjustable 5 Points V/F; Communication Initial Setting - Mitsubishi Electric FR-F700 Manual

.
Pr.
100 to 109

Adjustable 5 points V/F

Pr.100 V/F1 (first frequency)
Pr.102 V/F2 (second frequency)
Pr.104 V/F3 (third frequency)
Pr.106 V/F4 (fourth frequency)
Pr.108 V/F5 (fifth frequency)
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/F3
Torque boost V/F1
Pr.0
V/F2
0
V/F Characteristic
⋅ 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

Communication initial setting

Pr.117 PU communication station
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.333 RS-485 communication stop bit length
Pr.334 RS-485 communication parity check selection
Pr.335 RS-485 communication number of retries
Pr.337 RS-485 communication waiting time setting
Pr.341 RS-485 communication CR/LF selection
Pr.343 Communication error count
(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.
indicates simple mode parameters and
Pr.
Pr.101 V/F1 (first frequency voltage)
Pr.103 V/F2 (second frequency voltage)
Pr.105 V/F3 (third frequency voltage)
Pr.107 V/F4 (fourth frequency voltage)
Pr.109 V/F5 (fifth frequency voltage)
V/F5
V/F4
Frequency
Base frequency
Pr.3
Pr.118 PU communication speed
Pr.332 RS-485 communication speed
Pr.336 RS-485 communication check time interval
Pr.342 Communication EEPROM write selection
Pr.549 Protocol selection
indicates extended parameters. When setting parameters, refer to the instruction manual (applied) and understand instructions.
Pr.
Pr.
Setting Range
Number
Specify the inverter station number.
117 0 to 31 Set the inverter station numbers when two
331 (0 to 247) or more inverters are connected to one
*1
personal computer.
Set the communication speed.
The setting value × 100 equals the
118 48, 96, 192, 384
communication speed.
332 (3, 6, 12, 24)
*2
For example, the communication speed is
19200bps when the setting value is "192".
0
119
1 (initial value)
333
10
11
0 Without parity check
120
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
0 to 10 number of consecutive errors exceeds the
121
permissible value, the inverter will come to
335
an alarm stop.
If a communication error occurs, the
9999
inverter will not come to an alarm stop.
No PU connector communication
Communication with RS-485 terminal can
0
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
Set the waiting time between data
0 to 150ms
123
transmission to the inverter and response.
337
9999 (initial value) Set with communication data.
0 Without CR/LF
124
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.
(2) Communication EEPROM write selection (Pr.342)
Parameters written via the inverter's PU connector or RS-485
terminals or from the communication option can be written to
the RAM. When performing parameter change frequently, set
"1" in Pr. 342.
(3) Modbus-RTU communication specifications (Pr.343,
Pr.549)
* The Modbus-RTU protocol is valid for only communication from the RS-485
terminals.
Setting
Pr. Number
Range
Display the number of communication
343  errors during Modbus-RTU communication.
Reading only
0
Mitsubishi inverter (computer link) protocol
(initial value)
549
1 Modbus-RTU protocol
Description
Stop bit length Data length
1bit
8bit
2bit
1bit
7bit
2bit
Description
38