Hitachi X200-002SFE/NFU Instruction Manuals page 157

4−18
Free-run Stop
When the terminal [FRS] is turned ON, the inverter stops the output and the motor
enters the free-run state (coasting). If terminal [FRS] is turned OFF, the output
resumes sending power to the motor if the Run command is still active. The free-run
stop feature works with other parameters to provide flexibility in stopping and starting
motor rotation.
In the figure below, parameter B088 selects whether the inverter resumes operation
from 0 Hz (left graph) or the current motor rotation speed (right graph) when the [FRS]
terminal turns OFF. The application determines the best setting.
Parameter B003 specifies a delay time before resuming operation from a free-run stop.
To disable this feature, use a zero delay time.
Option
Code
11
Valid for inputs:
Required settings
Notes:
• When you want the [FRS] terminal to be active
low (normally closed logic), change the setting
(C011 to C015) that corresponds to the input
(C001 to C005) that is assigned the [FRS]
function.
More user manuals on
B088 = 00
Zero frequency start
Motor speed
1
[FRS]
0
1
[FW,RV]
0
Terminal
Function Name
Symbol
FRS Free-run Stop
C001~C005
B003, B088, C011 to C015
ManualsBase.com
Resume from motor speed
Motor speed
1
[FRS]
0
1
[FW,RV]
0
t
State Description
ON Causes output to turn OFF, allowing motor to free
run (coast) to stop
OFF Output operates normally, so controlled
deceleration and stops motor
Example (requires input configuration—
see page 3–49):
5 4
See I/O specs on page 4–6.
B088 = 01
Wait time
B003
t
FRS
L PCS P24
3 2 1