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-C22005-906