5-47
Any negative logic (Active off) command cannot be assigned to the functions marked
with "－" in the "Active OFF" column.
The "Enable external alarm trip" and "Force to stop" are fail-safe terminal commands.
For example, when data = "9" in "Enable external alarm trip," Active OFF (alarm is
triggered when OFF); when data = 1009, "Active ON" (alarm is triggered when ON).
Select multistep frequency (1 to 7 steps) – (SS1), (SS2), and (SS4)
(Function code data = 0, 1, and 2)
The combination of ON/OFF states of digital input signals (SS1), (SS2) and (SS4) selects one of
eight different frequency commands defined beforehand by seven function codes C05 to C11
(Multistep frequency 1 to 7). With this, the inverter can drive the motor at 8 different preset
speeds.
The table below lists the frequencies that can be obtained by the combination of switching (SS1),
(SS2), and (SS4). In the "Selected frequency" column, "Other than multistep frequency"
represents the reference frequency commanded by frequency command 1 (F01), frequency
command 2 (C30), or others.
Terminal [X3]
(Function code E03)
Terminal [X2]
(Function code E02)
Terminal [X1]
(Function code E01)
2 (SS4) 1 (SS2) 0 (SS1)
Selected frequency
OFF OFF OFF Other than multistep frequency
OFF OFF ON C05 (Multistep frequency 1)
OFF ON OFF C06 (Multistep frequency 2)
OFF ON ON C07 (Multistep frequency 3)
ON OFF OFF C08 (Multistep frequency 4)
ON OFF ON C09 (Multistep frequency 5)
ON ON OFF C10 (Multistep frequency 6)
ON ON ON C11 (Multistep frequency 7)
Enable 3-wire operation -- (HLD)
(Function code data = 6)
Turning this terminal command ON self-holds the forward (FWD) or reverse (REV) run command
issued with it, to enable 3-wire operation.
Turning (HLD) ON self-holds the first (FWD) or (REV) command at its leading edge. Turning
(HLD) OFF releases the self-holding.
When (HLD) is not assigned, 2-wire operation involving only (FWD) and (REV) takes effect.
Coast to a stop -- (BX)
(Function code data = 7)
Turning (BX) ON will immediately stop and the motor will enter the coast to a stop operation
without issuing any alarms.
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