Mitsubishi Electric FR-F800 Series Instruction Manual page 566

NOTE
• By setting Pr.250 = "0 to 100, 1000 to 1100", the motor will coast to a stop when the start command is turned OFF.
• The STF and STR signals are assigned to terminals STF and STR in the initial status. The STF signal can be assigned to
terminal STF only using Pr.178 STF terminal function selection, and the STR signal can be assigned to terminal STR only
using Pr.179 STR terminal function selection.
 3-wire type (STF signal, STR signal, STP (STOP) signal)
• The following figure shows the 3-wire type connection.
• The self-holding function is enabled when the STP (STOP) signal is turned ON. In such case, the forward/reverse signal
is simply used as a start signal.
• Even if a start signal (STF or STR) is turned ON and then OFF, the start command remains valid and the motor operation
continues. To change the rotation direction, turn the STR (STF) signal ON once and then OFF.
• In order to decelerate the motor to a stop, turn OFF the STP (STOP) signal once.
Stop
STF
STR
STP (STOP) ON
3-wire type connection example (Pr.250 = "9999")
NOTE
• The STP (STOP) signal is assigned to terminal STP (STOP) in the initial status. Set "25" in any of Pr.178 to Pr.189 to assign
the STP (STOP) signal to another terminal.
• When the JOG operation is enabled by turning ON the JOG signal, the STP (STOP) signal will be disabled.
• Even when the output is stopped by turning ON the MRS signal, the self-holding function is not canceled.
 Start signal selection
STF
OFF
OFF
ON
ON
Parameters referred to
Pr.7 Acceleration time, Pr.8 Deceleration
Pr.4 to Pr.6 (Multi-speed
Pr.13 Starting frequencypage
Downloaded from ManualsNet.com
Forward
rotation start
STF
Inverter
Reverse
rotation start
STR
STP (STOP)
SD
ON
ON
OFF
OFF
ON
OFF
ON
timepage 228
setting)page 263
238, page 239
search engine
Time
STF
STR
STP (STOP) ON
OFF
3-wire type connection example (Pr.250 = "8888")
STR
0 to 100 s, 9999
Stop
Reverse rotation
Forward rotation
Stop
Stop
Start
STF
Inverter
STP (STOP)
STR
Forward rotation
/reverse rotation
SD
ON
ON
ON
OFF
Pr.250 setting and inverter status
1000 to 1100 s, 8888
Stop
Forward rotation
Reverse rotation
5.13 (G) Control parameters
1
2
3
4
5
6
7
8
9
Time
10
OFF
565
5. PARAMETERS