4-13
4-2 Function Mode
4
Functions
•The frequency reference and reversibility depend on whether "16" (AT) is allocated to a multi-
function input, and depend on the combination of A005 and A006, as shown below.
If the frequency reference is "reversible", the motor runs in the reverse direction when "main
frequency reference + auxiliary frequency reference" is less than zero, even if the FW (Forward)
terminal is ON. Also, note that the motor may run in the reverse direction, resulting in prolonged
acceleration time or other phenomena, if the voltage fluctuates around 0 V even with the O2
terminal not connected.
A006 A005
AT
terminal
Main frequency reference
Auxiliary frequency
reference
(O2-L terminal)
Reversibility
With AT
allocated to a
multi-function
input
00, 03
00
OFF O-L terminal Disabled
Not
reversible
ON OI-L terminal Disabled
01
OFF O-L terminal Disabled
ON O2-L terminal Disabled Reversible
01
00
(Example 1)
OFF O-L terminal Enabled
Not
reversible
ON OI-L terminal Enabled
01
OFF O-L terminal Enabled
ON O2-L terminal Disabled Reversible
02
00
(Example 2)
OFF O-L terminal Enabled
Reversible
ON OI-L terminal Enabled
01
OFF O-L terminal Enabled
ON O2-L terminal Disabled
With AT NOT
allocated to a
multi-function
input
00 O2-L terminal Disabled Reversible
01
Addition of the O-L and
OI-L terminals
Enabled
Not
reversible
02
Addition of the O-L and
OI-L terminals
Enabled Reversible
03
Addition of the O-L and
OI-L terminals
Disabled
Not
reversible
FW
(Example 1) Not reversible (Example 2) Reversible
AT
Main frequency
reference
OI or O terminal
O
O
Auxiliary
frequency
reference
O2terminal
Real frequency
reference
f
O
+ f
O2
Forward
f
OI
f
O
f
O2
f
OI
+ f
O2
FW
AT
Main frequency
reference
OI or O terminal
O
O
Auxiliary
frequency
reference
O2 terminal
Real frequency
reference
f
O2
+ f
OI
Forward
Reverse
f
OI
f
O
f
O2
f
O2
+ f
OI
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