Instruction manual

Table Of Contents
PARAMETERS
83
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), 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 can be adjusted according to the
load.
Parameter
Number
Factory
Setting
Setting
Range
10 3Hz 0 to 120Hz
11 0.5 s 0 to 10 s
12 6% 0 to 30%
Operation
frequency
DC injection
brake voltage
Time
Time
Pr.12
Operation timePr.11
Pr.10
Output frequency (Hz)
Operation
voltage
<Setting>
!
Use Pr. 10 to set the frequency at which the DC injection brake operation is started.
!
Use Pr. 11 to set the period during when the brake is operated.
!
Use Pr. 12 to set the percentage of the power supply voltage.
!
Change the Pr. 12 setting to 4% when using the inverter-dedicated (constant-torque
motor).
Note: If you leave Pr. 12 as factory-set and change Pr. 71 to the setting for use of the
constant-torque motor, the Pr. 12 setting is automatically changed to 4%.
CAUTION
Install a mechanical brake. No holding torque is provided.
4