Mitsubishi Electric 800 Series Instruction Manual page 714

FR-A800 Series
Instruction Manual Supplement
1
Direct multi-speed operation
When the RLF (RLR) signal is input, the operation is the same as the one when the STF (STR) signal and RL signal
are input.
 Input terminal function assignment
• Use Pr.178 to Pr.189 to set the functions of the input terminals.
• Refer to the following table and set the parameters.
Setting Signal name
128 RLF
129 RLR
 Direct multi-speed setting
• While the RLF or RLR signal is input, the operation is according to Pr.6 Multi-speed setting (low-speed). The rotation is
forward while the RLF signal is input, and the rotation is reverse while the RLR signal is input.
Low-speed forward rotation command
Low-speed reverse rotation command
Forward rotation
Output frequency
Reverse rotation
NOTE
• The Pr.6 setting should be equal to or higher than the Pr.13 Starting frequency setting.
• To assign the RLF and RLR signals to input terminals, set "128 (RLF)" and "129 (RLR)" in any two parameters from
Pr.178 to Pr.189 (Input terminal function selection).
• The direct multi-speed operation is enabled only when the inverter operates in External operation mode.
• When the RLR or STR signal is input while the RLF signal is input, the motor is decelerated to stop.
• When the RLF or STF signal is input while the RLR signal is input, the motor is decelerated to stop.
• When Pr.59 Remote function selection ≠ "0", the RLF signal is used as the STF signal, and the RLR signal is used
as the STR signal.
• When the stop-on-contact function is enabled, the RLF signal is used as the STF signal, and the RLR signal is used
as the STR signal.
• When the RLF or RLR signal is turned ON to enable the direct multi-speed operation, the setting of Pr.250 Stop
selection and the STP (STOP) signal are disabled.
Function
Low-speed forward rotation command
Low-speed reverse rotation command
Pr.6
Pr.6
ON
RLF
RLR
RLF
Inverter
RLR
SD
ON
1
Related parameter
Pr.6
Pr.6
Time
BCN-C22005-910