Справочник Пользователя для Mitsubishi Electronics FR-A500
79
4
4.2.7
DC injection brake (Pr. 10 to Pr. 12)
Pr. 10 "DC injection brake operation frequency"
Pr. 11 "DC injection brake operation time"
Pr. 12 "DC injection brake voltage"
By setting the DC injection brake voltage (torque) at a stop, operation time and operation starting frequency,
the stopping accuracy of positioning operation, etc. or the timing of operating the DC injection brake to stop
the motor is adjusted according to the load.
<Setting>
• Use Pr. 10 to set the frequency at which the DC injection brake application is started.
By setting "9999" in Pr. 10, the motor is decelerated to the frequency set in Pr. 13 and braked.
• Use Pr. 11 to set the period during when the brake is operated. By setting "8888" in Pr. 11, the DC injection
brake is operated while the X13 signal is on.
• Use any of Pr. 180 to Pr. 186 to assign the terminal used to input the X13 signal.
• Use Pr. 12 to set the percentage of the power supply voltage.
• When using the inverter dedicated motor (constant-torque motor SF-JRCA) and energy saving motor (SF-
• Use Pr. 12 to set the percentage of the power supply voltage.
• When using the inverter dedicated motor (constant-torque motor SF-JRCA) and energy saving motor (SF-
HR, SF-HRCA), change the Pr. 12 setting as follows:
SF-JRCA: 3.7K or less ... 4%, 5.5K or more ... 2% (Note 1)
SF-HR, SF-HRCA: 3.7K or less ... 4%, 5.5K, 7.5K ... 3%, 11K or less ... 2%
SF-JRCA: 3.7K or less ... 4%, 5.5K or more ... 2% (Note 1)
SF-HR, SF-HRCA: 3.7K or less ... 4%, 5.5K, 7.5K ... 3%, 11K or less ... 2%
Parameter
Number
Factory
Setting
Setting Range
Remarks
10
3Hz
0 to 120Hz, 9999
9999: Operated at
or below Pr. 13
value.
or below Pr. 13
value.
11
0.5 s
0 to 10 s, 8888
8888: Operated
when X13 signal
switches on.
when X13 signal
switches on.
12
7.5K or less
4%
0 to 30%
11K or more
2%
Note: 1. When the Pr. 12 setting is either of the following values for 5.5K and 7.5K, it is automatically
changed when the Pr. 71 setting is changed:
(1)When Pr. 12 setting is 4% (factory setting)
The Pr. 12 setting is changed to 2% automatically when the Pr. 71 setting is changed from
[general-purpose motor selection value (0, 2 to 8, 20, 23, 24)] to [constant-torque motor
selection value (1, 13 to 18)].
[general-purpose motor selection value (0, 2 to 8, 20, 23, 24)] to [constant-torque motor
selection value (1, 13 to 18)].
(2)When Pr. 12 setting is 2%
The Pr. 12 setting is changed to 4% (factory setting) automatically when the Pr. 71 setting is
changed from [constant-torque motor selection value (1, 13 to 18)] to [general-purpose motor
selection value (0, 2 to 8, 20, 23, 24)].
changed from [constant-torque motor selection value (1, 13 to 18)] to [general-purpose motor
selection value (0, 2 to 8, 20, 23, 24)].
2. When Pr. 11 = "0" or Pr. 12 = "0", DC injection brake operation cannot be performed.
CAUTION
For orientation operation, do not set "0" or "8888" in Pr. 11 and "0" in Pr. 12.
The motor may not be stopped in the correct position.
Install a mechanical brake. No holding torque is provided.
Related parameters
Pr. 13 "starting frequency"
Pr. 71 "applied motor"
Pr.10
Pr.12
Pr.11
Operation time
O
u
tp
u
t f
req
ue
nc
y (H
z
)
Operation frequency
Time
C dynamic
rake voltage
Operation voltage
Time