Mitsubishi Electric FR-A800, Instruction Manual

Page: 853 / 1042

Parameters (G) Control parameters
FR-A800 5 - 673
5.16.9 Stop selection
Select the stopping method (deceleration to stop or casting) at turn-OFF of the start signal.
Use this function to stop a motor with a mechanical brake at turn-OFF of the start signal.
Selection of start signal (STF/STR) operation can also be selected. (For start signal selection, refer to
page 5-430.)
Make the motor perform deceleration stop
●
Set Pr. 250 = "9999 (initial value) or 8888".
●
It will perform deceleration stop when the start signal (STF/STR) is turned OFF.
Parameters referred to
Pr. 10 DC injection brake operation frequency => page 5-663
Pr. 11 DC injection brake operation time => page 5-663
Pr. 12 DC injection brake operation voltage => page 5-663
Pr. 13 Starting frequency => page 5-251, page 5-253
Pr. Name
Initial
value
Setting
range
Description
Start signal (STF/STR)
(Refer to page 5-430.)
Stop operation
250
G106
Stop selection 9999
0 to 100 s
STF signal: Forward rotation
start
STR signal: Reverse rotation
start
It will coast to stop after
set time when the start
signal is turned OFF.
1000 s to
1100 s
STF signal: Start signal
STR signal: Forward/reverse
rotation signal
It will coast to stop after
(Pr. 250 – 1000) s when the
start signal is turned OFF.
9999
STF signal: Forward rotation
start
STR signal: Reverse rotation
start
It will perform
deceleration stop when
the start signal is turned
OFF.
8888
STF signal: Start signal
STR signal: Forward/reverse
rotation signal
I001143E
Fig. 5-335: Stop operation when parameter 250 = 8888 or 9999
Output
frequency [Hz]
Start signal
DC brake
Deceleration starts when start signal turns off
Time
ON
ON
OFF
OFF RUN signal
Deceleration time (Time set in Pr. 8, etc.)