Pr. 244 Increase cooling fan life

Pr.244 Cooling fan operation selection

You can control the operation of the cooling fan (200V class 2.2K or more, 400V class 3.7K or more) built in the inverter.

Pr. 244 Setting

Description

The cooling fan operates at power on.

0Cooling fan on/off control invalid (The cooling fan is always on at power on)

Cooling fan on/off control valid

 

The fan is normally on during inverter

1 (initial value)

operation. The fan switches on/off according to

 

the temperature during a stop of the inverter

 

whose status is monitored.

Pr. 245 to 247 Slip compensation

Pr.245

Rated slip

Pr.246 Slip compensation time constant

Pr.247

Constant-output region slip compensation selection

The inverter output current may be used to assume motor slip to keep the motor speed constant.

Pr. Selection of motor stopping 250 method and start signal

Pr.250 Stop selection

Used to select the stopping method (deceleration to a stop or coasting) when the start signal turns off.

Used to stop the motor with a mechanical brake, etc. together with switching off of the start signal.

You can also select the operations of the start signals (STF/STR).

Pr.250

 

 

 

Description

 

 

Start signal

 

 

 

 

 

 

Setting

 

 

 

 

 

 

Stop operation

 

 

(STF/STR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STF signal: Foward

 

 

 

The motor is coasted to a

0 to 100s

 

 

rotation start

 

 

 

 

 

 

stop when the preset time

 

STR signal: Reverse

 

 

 

 

 

 

 

 

elapses after the start

 

 

 

rotation start

 

 

 

 

 

 

 

signal is turned off. The

 

 

STF signal: Start signal

 

 

 

 

 

 

 

 

motor is coasted to a stop

 

 

STR signal: Forward/

 

 

 

1000s to 1100s

 

 

 

 

(Pr. 250 - 1000)s after the

 

 

reverse

 

 

 

 

 

 

 

 

 

start signal is turned off.

 

 

 

rotation signal

 

 

 

 

 

 

 

 

 

 

 

 

STF signal: Foward

 

 

 

 

 

 

9999

 

 

rotation start

 

 

 

 

 

 

STR signal: Reverse

 

 

 

 

 

 

 

 

 

 

 

When the start signal is

 

 

 

rotation start

 

 

 

 

 

 

 

turned off, the motor

 

 

STF signal: Start signal

 

 

 

 

 

 

 

 

decelerates to stop.

 

 

STR signal: Forward/

 

 

 

8888

 

 

 

 

 

 

 

 

 

reverse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

rotation signal

 

 

 

 

 

When Pr. 250 is set to "9999" (initial value) or "8888".

frequency

 

 

Deceleration starts

 

 

 

 

 

 

when start signal turns off

 

 

 

 

Deceleration time

 

 

 

 

(Time set in Pr. 8, etc.)

Output (Hz)

 

 

 

 

 

 

 

 

 

 

 

DC brake

 

 

 

 

 

 

 

 

Time

 

 

 

 

 

 

 

 

 

 

Start

 

 

 

OFF

signal

 

ON

 

 

 

 

 

 

 

 

 

 

RUN

 

 

 

 

 

 

 

 

 

signal

 

ON

 

 

OFF

 

When Pr. 250 is set to values other than "9999" (initial value) or "8888".

frequency

 

 

Output is shut off when set

 

 

time elapses after start signal

 

 

 

 

 

 

turned off

 

 

 

Output (Hz)

 

 

Pr.250

 

 

Motor coasts to stop

 

 

 

 

 

 

 

Time

 

 

 

 

 

 

 

OFF

 

Start signal

ON

 

Pr.

Input/output phase failure

251, 872 protection selection

Pr.251 Output phase failure protection selection

Pr.872 Input phase failure protection selection

You can disable the output phase failure protection function that stops the inverter output if one of the inverter output side (load side) three phases (U, V, W) opens.

The input phase failure protection selection of the inverter input side (R/L1, S/L2, T/L3) can be made valid.

Pr. Number

Setting Range

Description

251

0

Without output phase failure protection

1 (initial value)

With output phase failure protection

 

872

0 (initial value)

Without input phase failure protection

1

With input phase failure protection

 

Pr.

252, 253

 

Refer to the section about Pr. 73 and

 

 

other relevant parameters.

 

 

 

Pr.

Display of the life of the

255 to 259 inverter parts

Pr.255 Life alarm status display

Pr.256 Inrush current limit circuit life display

Pr.257 Control circuit capacitor life display Pr.258 Main circuit capacitor life display Pr.259 Main circuit capacitor life measuring

Degrees of deterioration of main circuit capacitor, control circuit capacitor or inrush current limit circuit and cooling fan can be diagnosed by monitor.

When any part has approached the end of its life, an alarm can be output by self diagnosis to prevent a fault.

(Use the life check of this function as a guideline since the life except the main circuit capacitor is calculated theoretically.)

Pr.

Setting

Description

Number

Range

 

 

 

Display whether the control circuit capacitor,

 

 

main circuit capacitor, cooling fan, and each

255

(0 to 15)

parts of the inrush current limit circuit has

 

 

reached the life alarm output level or not.

 

 

Reading only

256

(0 to 100%)

Display the deterioration degree of the inrush

current limit circuit. Reading only

 

 

257

(0 to 100%)

Display the deterioration degree of the control

circuit capacitor. Reading only

 

 

258

(0 to 100%)

Display the deterioration degree of the main

circuit capacitor. Reading only

 

 

The value measured by Pr. 259 is displayed.

 

 

Setting "1" and turning off the power starts the

 

0, 1

measurement of the main circuit capacitor life.

259

When the Pr. 259 value is "3" after powering on

(2, 3, 8, 9)

 

again, the measuring is completed. Read the

 

 

 

 

deterioration degree in Pr. 258.

Pr. 260 Refer to the section about Pr. 72.

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Options

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Instructions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Compatibility

 

 

 

 

 

 

 

 

 

 

Warranty

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inquiry

 

 

 

 

 

 

 

 

RUN signalONOFF

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

42

Page 41
Image 41
Mitsubishi Electronics FR-F700 Pr Increase cooling fan life, Pr to 247 Slip compensation, Input/output phase failure