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8 Applied Settings
High-function General-purpose Inverter RX2 Series User’s Manual
8-4 Control Function
8
8-4-5 Contactor Control (CON)
For performing the contactor operation, set the [AF120] contactor control selection to 01.
The 039[CON] contactor control signal for the output terminal function and the 107[COK] contactor
check signal for the input terminal function are available.
For the contactor control, a trip occurs in the following cases.
• When the contactor check signal 107[COK] is used, [COK] is not turned on within the contactor
check time at start-up.
• When the contactor check signal 107[COK] is used, [COK] is not turned off within the contactor
check time at stop.
• When the contactor check signal 107[COK] is used, [COK] is turned off while the contactor control
signal 039[CON] is on
Precautions for Correct Use
• The contactor control requires this function because operating a contactor during the inverter
output generates a surge causing damage to the inverter.
• When an error occurs in the contactor sequence, the inverter trips at [E110].
8-4-5 Contactor Control (CON)
Setting Items Required for the Contactor Control
Item Parameter Data Description
Default
data
Contactor Control
Enable, 1st-motor
[AF120]
00 Disabled
00
01
Enabled (primary side)
Place a contactor on the primary side of the
inverter to reduce standby power.
02
Enabled (secondary side)
Place a contactor on the secondary side of
the inverter to implement the function as a
brake sequence.
Run delay time,
1st-motor
[AF121] 0.00 to 2.00(s)
Set the waiting time from the input of an
operation command to the start of the
inverter output.
0.20
Contactor off delay
time, 1st-motor
[AF122] 0.00 to 2.00(s)
Set the time from the output shutoff of the
inverter to the control of the contactor.
0.10
Contactor answer
back check time,
1st-motor
[AF123] 0.00 to 5.00(s)
Set the time from the operation command to
the control of the contactor.
0.10
Input terminal function
[CA-01] to
[CA-11]
107
[COK] Contactor check signal
OFF: Contactor released
ON: Contactor in operation
-
Output terminal func-
tion
[CC-01] to
[CC-07]
039
[CON] Contactor control signal
OFF: Contactor release command
ON: Contactor operation command
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