Omron RX Series - Page 443

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7 Detailed Functions
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
7-5 Multi-function Terminal Functions (Group C)
7
Additional Information
If the reset signal is input during the restart standby time, the “frequency at shutoff” value stored
in the inverter will be cleared, which results in a 0-Hz start.
• Use this function to start and stop the inverter via an automatic reset contact such as a pushbutton
switch.
• Set the Multi-function Input S1 to S8 Selection (C001 to C008) to 20 (STA), 21 (STP), and 22 (F/R).
• Set the RUN Command Selection (A002) to 01 (Control circuit terminal block).
• Allocating the terminal STP disables the terminals FW and RV.
3-wire Input Function (STA, STP, F/R)
Parameter No. Function name Data Default data Unit
C001 to C008
Multi-function Input S1 to
S8 Selection
20: STA (3-wire start)
21: STP (3-wire stop)
22: F/R (3-wire forward/reverse)
––
Data Symbol Function name Status Description
20 STA 3-wire start
ON Start via automatic reset contact
OFF Independent of motor operation
21 STP 3-wire stop
ON Motor operation enabled
OFF Stop via automatic reset contact
22 F/R 3-wire forward/reverse
ON Reverse
OFF Forward
Required setting A002 = 01
FW input
(Forward)
RS input
Output
current
Inverter
output
frequency
Motor rpm
Decelerates according
to b029
Frequency selected in b030
b028
b003