Mitsubishi Electric 800 Series Instruction Manual page 553

 3-wire type (STF, STR, STP (STOP) signal)
• The following figure shows the connection in 3-wire type.
• Start self-holding function is enabled when the STP (STOP) signal is turned ON. In such case, forward/reverse signal will
only operate as start signal.
• Even if start signal (STF or STR) is turned ON and then OFF, the start signal will be maintained and it will start. To change
the rotation direction, turn STR (STF) ON once and then OFF.
• The inverter will perform deceleration stop by turning the STP (STOP) signal OFF once.
Forward
Stop
rotation start
Reverse
rotation start
ON
STF
STR
STP (STOP)
ON
3-wire type connection example (Pr.250 = "9999")
NOTE
• The STP (STOP) signal is assigned to the terminal STP (STOP) by the initial setting. 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, STOP signal will be disabled.
• Even when the output is stopped by turning ON the MRS signal, self-holding function is not canceled.
 Start signal selection
STF STR
OFF OFF
OFF ON
ON OFF
ON ON
Parameters referred to
Pr.4 to Pr.6 (multi-speed setting)
Pr.7 Acceleration time, Pr.8 Deceleration time
Pr.13 Starting frequency
Pr.75 Reset selection/disconnected PU detection/PU stop selection
Pr.178 to Pr.189 (Input terminal function selection)
Pr.261 Power failure stop selection
Pr.502 Stop mode selection at communication error
552
5. PARAMETERS
5.13 (G) Control parameters
STF
Inverter
STR
STP (STOP)
SD
ON
OFF OFF
Pr.250 setting and inverter condition
0 to 100 s, 9999
Stop
Reverse rotation
Forward rotation
Stop
page 226
page 190
page
201, page 202
page 458
Stop
Forward rotation
/reverse rotation
Time
ON
STF
STR
STP (STOP)
ON
3-wire type connection example (Pr.250 = "8888")
1000 s to 1100 s, 8888
Stop
Forward rotation
Reverse rotation
page 162
page 343
page 478
Start
STF
Inverter
STP (STOP)
STR
SD
ON
ON
OFF OFF
Time