3-9
3-2 Operation Method
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
3
Operation
<Running/Stopping the Inverter via 3-wire Input and Setting the Frequency Using an
Analog Current Signal>
Setting
* For details on the 3-wire input method, refer to "3-wire Input Function (STA, STP, F/R)" on page 5-56.
Change the following parameters, if necessary:
Wiring the Control Circuit Terminal Block
*1 Allocate 16: FV/FI (Analog input switch) to a multi-function input to use as the current setting. If terminal
FV/FI is not allocated, the frequency reference becomes the sum of voltage input (FV) and current input
(FI). To use only one of voltage and current, therefore, short the other analog input to the SC terminal.
*2 This wiring diagram shows an example of using the built-in power supply of the Inverter. If an external
power supply is used, refer to "Connection to Programmable Controller (PLC)" on page 2-22.
Operation
Refer to "Test Run" on page 3-10.
Parameter
No.
Function name Data
Default
value
Note
A001
Frequency Reference
Selection 1
01 (Control circuit
terminal block)
02
A002
RUN Command
Selection 1
01 (Control circuit
terminal block)
02
C001
Multi-function
Input 1 Selection
20 (STA: 3-wire
start)*
00 (FW)
If other input terminal is used, the
parameter number becomes different.
C002
Multi-function
Input 2 Selection
21
(
STP: 3-wire stop)
*
01 (RW)
If other input terminal is used, the
parameter number becomes different.
C003
Multi-function
Input 3 Selection
22 (F/R: 3-wire
forward/reverse)
*
18 (RS)
If other input terminal is used, the
parameter number becomes different.
Parameter
No.
Function name Data
Default
value
F002
Acceleration
Time Setting 1
0.01 to 99.99 s 100.0 to 999.9 s
1,000. to 3,600. s
10.00 s
F003
Deceleration
Time Setting 1
0.01 to 99.99 s 100.0 to 999.9 s
1,000. to 3,600. s
10.00 s
10 VDC
FS
FV
FI SC S2 S1 SC PSC P24
24 VDC
*1
Frequency setting
(4 to 20 mA)
*2
Forward/
reverse
Stop
(NC contact)
Operate
(NO contact)
S3/GS1
F/R
setting
STP
setting
STA
setting
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