2-18
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
Communications method
Pin 1 setting
RS-422
Set to ON
RS-485
Set to ON only if the Unit is the end Slave.
120-
Ω
termination resistance (1/2 W)
Pin 1
D
Selecting Frequency Reference Input Method
•
By using pin 2 of SW2, voltage input or current input can be selected as the input method for frequency
reference. The default setting is for voltage input.
Parameter settings are required together with the selection of the 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 2
Summary of Contents for SYSDRIVE 3G3MV-A2001
Page 1: ...Cat No I527 E1 04 USER S MANUAL SYSDRIVE 3G3MV Multi function Compact Inverter...
Page 2: ......
Page 3: ...USER S MANUAL Multi function Compact Inverter SYSDRIVE 3G3MVSERIES...
Page 18: ......
Page 23: ...Chapter 1 Overview 1 1 Functions 1 2 Nomenclature 1 3 New Features 1...
Page 32: ......
Page 33: ...Chapter 2 Design 2 1 Installation 2 2 Wiring 2...
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Page 93: ...Chapter 4 Test Run 4 1 Procedure for Test Run 4 2 Operation Example 4...
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Page 269: ...Chapter 9 Specifications 9 1 Inverter Specifications 9 2 Option Specifications 9...
Page 303: ...Chapter 10 List of Parameters 10...
Page 337: ...Chapter 11 Using the Inverter for a Motor 11...
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Page 344: ...I527 E1 04...