Download  Print this page

Motor Brake And Stop Operation; Dc Injection Brake And Zero Speed Control, Servo Lock (x13 Signal, Pr. 10 To Pr. 12) - Mitsubishi Electric FR-B-750 to 75K Instruction Manual

Fr-b-750 to 75k (200v class), fr-b-750 to 110k (400v class).
Hide thumbs

Advertisement

Motor brake and stop operation

4.10 Motor brake and stop operation
Purpose
Motor braking torque adjustment
Improve the motor braking torque
with an option
Performing operation by DC current
input
Coast the motor to a stop
Used to stop the motor with a
mechanical brake (vibration restraint
at stop-on-contact)
*1
Setting can be made only for FREQROL-B3 series.
*2
When the regenerative brake option is used for FREQROL-B series (55K or less) or FREQROL-B3 series, another explosion-proof test is
necessary.
4.10.1 DC injection brake and zero speed control, servo lock
(X13 signal, Pr. 10 to Pr. 12)
The DC injection brake can be operated at a motor stop to adjust the stop timing and braking torque.
In DC injection brake operation, DC voltage is directly applied to the motor to prevent the motor shaft from
rotating. The motor will not return to the original position if the motor shaft rotates due to external force.
Parameter
Name
Number
10
DC injection brake
operation frequency
B3
B3
B3
DC injection brake
11
operation time
12
DC injection brake
operation voltage
B3
B3
B3
* The setting range differs according to the inverter capacity. (55K or less/75K or more)
100
Parameter that must be Set
DC injection brake
Selection of a regenerative brake
DC current feeding mode
Selection of motor stopping method
Stop-on-contact control
Initial Value
Setting Range
FR-B
FR-B3
FR-B
3Hz
0.5s/
0.5s
0s *
0.5s
7.5K or
4%
less
11K or
2%
more
Pr. 10 to Pr. 12
Pr. 30, Pr. 70
*2
Pr. 30
Pr. 250
Pr. 270, Pr. 275,
Pr. 276
FR-B3
Set the operation frequency of the DC
0 to 120Hz
injection brake (zero speed control, servo
lock).
9999
Operated at Pr. 13 or less.
DC injection brake (zero speed control)
0
disabled
Set the operation time of the DC injection
0.1 to 10s
brake (zero speed control, servo lock).
8888
Operated when X13 signal is on
Set the DC injection brake voltage (torque).
0 to 30%
When "0" is set, DC injection brake is
disabled.
Refer to Page
100
*1
102
102
104
105
Description

Advertisement

Table of Contents

   Related Manuals for Mitsubishi Electric FR-B-750 to 75K

Comments to this Manuals

Symbols: 0
Latest comments: