Regenerative Brake Selection And Dc Feeding Mode - Mitsubishi Electric FR-A800 Series Instruction Manual

• 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
ON
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
Pr.75 Reset selection/disconnected PU detection/PU stop
Pr.178 to Pr.189 (Input terminal function
Pr.261 Power failure stop
Pr.419 Position command source
Pr.502 Stop mode selection at communication
Pr.875 Fault definitionpage 422
5.16.11 Regenerative brake selection and DC feeding
mode
• When performing frequent start and stop operation, usage rate of the regenerative brake can be increased by using the
optional high-duty brake resistor (FR-ABR) or the brake unit (FR-BU2, BU, or FR-BU).
724
5. PARAMETERS
5.16 (G) Control parameters
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Forward
rotation start
STF
Inverter
Reverse
rotation start
STR
STP (STOP)
SD
ON
OFF
STR
OFF
ON
OFF
ON
timepage 367
setting)page 411
381, page 382
selection)page 521
selectionpage 642
selectionpage 298
errorpage 663
search engine
Stop
Time
STF
STR
STP (STOP) ON
OFF
3-wire type connection example (Pr.250 = "8888")
0 to 100 s, 9999
Stop
Reverse rotation
Forward rotation
Stop
selectionpage 336
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
Time
OFF