Pr.

Operation at instantaneous

261 to 266 power failure

Pr.261 Power failure stop selection

Pr.262 Subtracted frequency at deceleration start

Pr.263 Subtraction starting frequency Pr.264 Power-failure deceleration time 1 Pr.265 Power-failure deceleration time 2

Pr.266 Power failure deceleration time switchover frequency

When a power failure or undervoltage occurs, the inverter can be decelerated to a stop or can be decelerated and re- accelerated to the set frequency.

Pr.

Setting Range

 

Description

Number

 

 

 

 

 

 

 

Coasting to stop

 

0 (initial value)

 

When undervoltage or power failure

 

 

 

occurs, the inverter output is shut off.

 

1

 

When undervoltage or a power failure

261

 

occurs, the inverter can be decelerated

 

 

to a stop.

 

 

 

When undervoltage or a power failure

 

 

 

occurs, the inverter can be decelerated

 

2

 

to a stop.

 

 

 

If power is restored during a power

 

 

 

failure, the inverter accelerates again.

 

 

 

Normally operation can be performed

 

 

 

with the initial value unchanged. But

262

0 to 20Hz

 

adjust the frequency according to the

 

 

 

magnitude of the load specifications

 

 

 

(moment of inertia, torque).

 

 

 

When output frequency ≥ Pr. 263

 

 

 

Decelerate from the speed obtained

 

0 to 120Hz

 

from output frequency minus Pr. 262.

263

 

 

When output frequency < Pr. 263

 

 

 

Decelerate from output frequency

 

9999

 

Decelerate from the speed obtained

 

 

from output frequency minus Pr. 262.

 

 

 

264

0 to 3600/ 360s

*

Set a deceleration slope down to the

frequency set in Pr. 266.

 

 

 

 

0 to 3600/ 360s

*

Set a deceleration slope below the

265

frequency set in Pr. 266.

 

 

 

9999

 

Same slope as in Pr. 264

266

0 to 400Hz

 

Set the frequency at which the

 

deceleration slope is switched from the

 

 

 

Pr. 264 setting to the Pr. 265 setting.

*When the setting of Pr. 21 Acceleration/deceleration time increments is "0" (initial value), the setting range is "0 to 3600s" and the setting increments are "0.1s", and when the setting is "1", the setting range is "0 to 360s" and the setting increments are "0.01s"

Power supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output

 

 

 

 

 

Pr.264

Subtracted

 

 

 

Power-failure

frequency

frequency at

 

 

 

 

deceleration time 1

Power-failure

 

 

 

 

deceleration start

 

 

 

 

 

 

Pr.265

deceleration

Pr.262

 

 

 

 

 

 

Power-failure

time switchover

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

deceleration

frequency

 

 

 

 

 

 

 

 

 

 

 

time 2

 

Pr.266

 

 

 

 

 

Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)Power failure stop mode (Pr.261 = “1”)

If power is restored during power failure deceleration, deceleration to a stop is continued and the inverter remains stopped.To restart, turn off the start signal once, then turn it on again.

Power

supply

Pr.261 = 1

 

 

frequency

During deceleration at

 

occurrence of power failure

 

During stop at

 

occurrence of

 

power failure

 

Output

 

 

 

 

Time

STF

 

Y46

 

Turn off STF once to make acceleration again

(2)Instantaneous power failure-time operation continuation function (Pr.261 = “2”)

When power is restored during deceleration after an instantaneous power failure, acceleration is made again up to the set frequency.

When this function is used in combination with the automatic restart after instantaneous power failure operation, deceleration can be made at a power failure and acceleration can be made again after power restoration.

When power is restored after a stop by deceleration at an instantaneous power failure, automatic restart operation is performed if automatic restart after instantaneous power failure has been selected (Pr. 57 ≠ "9999")

Pr.261 = 2

When power is restored during

deceleration

 

Power

 

IPF

 

 

supply

 

 

Output

 

 

frequency

During deceleration

 

 

at occurrence of

Reacceleration

 

power failure

 

Time

 

 

Y46

 

 

Pr.261 = 2, Pr.57 9999

When used with automatic restart

after instantaneous power failure

 

During power failure

Power

 

supply

 

Output

 

frequency

Automatic restart

During deceleration

 

at occurrence of

after instantaneous

power failure

power failure

 

Time

Reset time + Pr.57

Y46

Pr. 267 Refer to the section about Pr. 73 and other relevant parameters.

Pr. 268 Refer to the section about Pr. 52 and other relevant parameters.

Pr. 269 Parameter for manufacturer setting. Do not set.

Pr.

299

 

Refer to the section about Pr. 57 and other

 

 

relevant parameters.

 

 

 

Pr.

331 to 337

Refer to the section about Pr. 117 and

other relevant parameters.

 

 

 

 

43

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

Page 42
Image 42
Mitsubishi Electronics FR-F700 Operation at instantaneous, 261 to 266 power failure, Power failure stop mode Pr.261 =