7
.
Serial Communications Connection Procedure
11
7.2. Setting up Inverter
Set up Inverter.
7.2.1. Hardware Settings
Set the hardware switches on Inverter and connect the cables.
Precautions for Correct Use
Make sure that the power supply is OFF when you perform the setting up.
1
Make sure that the power supply
to Inverter is OFF.
*If the power supply is turned
ON, settings may not be
applicable as described in the
following procedure.
2
Remove Option Unit Cover from
the Inverter front panel as
shown in the right figure.
1: Loosen the mounting screw (x 1) from Option Unit Cover of the Inverter
front panel.
2: Remove Option Unit Cover.
3
Check that Terminating Resistor
Selector Switch inside of the
terminal block cover is OFF.
4
Connect a Serial cable to
RS-485 terminal (RS-, RS+).
Connect Terminating resistor
(120Ω 1/2W) to RS-485 terminal
(RS-, RS+).
RS-485 terminal
Terminating resistor
Option Unit Cover
Mounting screw
Control Circuit
Terminal Block A
Control Circuit
Terminal Block B
SDB+
SDA-
Serial cable
Summary of Contents for CJ2*-CPU Series
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