Setting Of Operating Frequency (Pr.10); Setting Of Operation Time (X13 Signal, Pr.11) - Mitsubishi FR-A800 Instruction Manual

(G) Control parameters
Setting of operating frequency (Pr.10)
• By setting the frequency to operate the DC injection brake (zero speed control and servo lock) to Pr.10 DC injection brake
operation frequency, the DC injection brake (zero speed control and servo lock) will operate when it reaches this
frequency at the time of deceleration.
• When Pr.10 = "9999", DC injection brake (zero speed control, servo lock) will start when the frequency reaches Pr.13
Starting frequency.
• The DC injection brake operation frequency depends on the stopping method.
Stopping method
Press the STOP key on the
operation panel
Turning OFF of the STF/STR
signal
Set the frequency to 0 Hz
• DC injection brake operation frequency will be fixed to 0 Hz at the time of PM sensorless vector control (low-speed range
high-torque mode disabled).
NOTE
• When executing pre-excitation (zero speed control) at the time of Real sensorless vector control, set Pr.10 DC injection
brake operation frequency to 0.5 Hz or lower since it may cause motor vibration, etc., at the time of deceleration stop.
• Initial value of Pr.10 will automatically switch to 0.5 Hz at the time of vector control.
Setting of operation time (X13 signal, Pr.11)
• Set the time applying the DC injection brake (zero speed control and servo lock) to Pr.11 DC injection brake operation
time.
• When the motor does not stop due to large load moment (J), increasing the setting produces an effect.
• When Pr.11 = "0 s", DC injection brake (zero speed control and servo lock) will not operate. (The motor will coast to stop.)
• When Pr.11 = "8888", DC injection brake (zero speed control and servo lock) will operate when the X13 signal is turned
ON. DC injection brake will operate when the X13 signal is turned ON even while operating.
• For the X13 signal input, set "13" in any of Pr.178 to Pr.189 to assign the function.
NOTE
• Under Real sensorless vector control, when the X13 signal turns ON while Pr.11 = "8888", the zero speed control is activated
regardless of the Pr.850 Brake operation selection setting.
• At the time of vector control or PM sensorless vector control, the zero speed control or the servo lock will operate depending
of the setting of Pr.802.
• The X13 signal is disabled during PM sensorless vector control.
606
PARAMETERS
Parameter setting
0.5 Hz or higher in Pr.10
Lower than 0.5 Hz in Pr.10, and 0.5 Hz or
higher in Pr.13
Lower than 0.5 Hz in both Pr.10 and Pr.13
─
DC injection
Pr.12
Operation
brake
voltage
voltage
Pr. 11 Operation time
When Pr. 11 = "8888"
Pr.12
DC injection
brake voltage
X13 signal
STF
DC injection brake operation frequency
Pr.10 setting
0.5 Hz
Pr.10 or Pr.13 setting, whichever larger
Pr.13 setting or 0.5 Hz, whichever larger
Pr. 10 Operation
frequency
Time
Time
Time
Time
ON ON OFF
ON