1-19
D Selecting RS-422/485 Termination Resistance
• Termination resistance can be selected by setting pin 1 of the SW2 to ON. The default setting for the
pin is OFF.
Selects RS-422/485 termination resistance
Selects frequency reference input method
120-Ω termination resistance (1/2 W)
Pin 1
D Selecting Frequency Reference Input Method
Frequency reference input
method
Pin 2 setting Frequency reference selection
(parameter n004)
Voltage input (default setting) V (OFF) Set value 2
Current input I (ON) Set value 3 or 4
Note Do not set pin 2 to ON for current input while voltage is being input, otherwise the resistor in the
input circuit may burn out.
D Frequency Reference Input by Pulse Train Input
• The RP terminal can input or output a PLC or external pulse generator signal directly to the Inverter if
an analog signal is unable to provide an accurate reference.
• This allows speed ratio and tracking operation between inverters.
Pulse train
Input
Output
Pulse train
Input
Design Chapter 1
To Next Page
Loading...
