Fuji Electric FRENIC-HVAC User Manual page 436

The combination of SS1, SS2, SS4 and SS8 and the selected frequencies are as follows.
SS8 SS4
OFF OFF
OFF OFF
OFF OFF
OFF OFF
OFF ON
OFF ON
OFF ON
OFF ON
ON OFF
ON OFF
ON OFF
ON OFF
ON ON
ON ON
ON ON
ON ON
* "Other than multistep frequency" includes frequency command 1 (F01), frequency command 2 (C30) and
other command sources except multistep frequency commands.
When PID control is disabled (Hz/PID = ON)

Multistep frequency commands (15 steps) can also be used for a manual speed command.
SS2 SS1
OFF OFF
OFF ON
ON OFF
ON ON
OFF OFF
OFF ON
ON OFF
ON ON
OFF OFF
OFF ON
ON OFF
ON ON
OFF OFF
OFF ON
ON OFF
ON ON
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Selected frequency command
Other than multistep frequency *
C05 (Multistep frequency 1)
C06 (Multistep frequency 2)
C07 (Multistep frequency 3)
C08 (Multistep frequency 4)
C09 (Multistep frequency 5)
C10 (Multistep frequency 6)
C11 (Multistep frequency 7)
C12 (Multistep frequency 8)
C13 (Multistep frequency 9)
C14 (Multistep frequency 10)
C15 (Multistep frequency 11)
C16 (Multistep frequency 12)
C17 (Multistep frequency 13)
C18 (Multistep frequency 14)
C19 (Multistep frequency 15)