8.1 Overview on RS-485 Communication
8-5
Chap. 8
RUNNI
NG TH
ROUGH
RS-4
85
COMMUNI
CA
TION
Multi-drop connection using the RS-485 communications port 2 (on the terminal block)
Figure 8.2 Multi-drop Connection Diagram (Connecting to the Terminal Block)
Use cables and converters meeting the specifications for proper connection. (Refer to [3]
"Requirements for the cable (COM port 2: for RS-485 connector)" in Section 8.1.4
"Communications support devices."
Switching terminating
resistors
SW2
112
Ω
Host equipment
USB or RS-232C
Host equipment
RS-485
FRENIC-AQUA series
Inverter 1
DX+
DX-
SD
FRENIC- AQUA series
Inverter 2
DX+
DX-
SD
FRENIC-AQUA series
Inverter n
DX+
DX-
SD
Terminating resistor
(112
Ω
)
(4-wire)
Shield
(2-wire)
Station No. 01
Station No. 02
Station No. n
Using the built-in
terminating resistor
Up to 31
inverters
(2-wire)
(2-wire)
(2-wire)
USB
−
RS-485 converter
or
RS-232C
−
RS-485 converter
Off-the-shelf one
Summary of Contents for FRENIC-AQUA series
Page 1: ...MEHT538b...
Page 2: ...User s Manual...
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Page 61: ...2 26 Figure D Figure E NC No connection Do not make wiring NC NC...
Page 63: ...2 28 Figure J Figure K Charging lamp Charging lamp Viewed from A...
Page 83: ...2 48 Unit mm FRN45 to 55AQ1 4...
Page 84: ...2 9 External Dimensions 2 49 Chap 2 SPECIFICATIONS Unit mm FRN75 to 90AQ1 4...
Page 85: ...2 50 Unit mm FRN110AQ1S 4 FRN132AQ1S 4 FRN160AQ1S 4 FRN200AQ1S 4...
Page 87: ...2 52 Unit mm FRN500AQ1S 4 FRN630AQ1S 4 FRN710AQ1S 4...
Page 88: ...2 9 External Dimensions 2 53 Chap 2 SPECIFICATIONS 2 9 2 Keypad Unit mm Panel cutout...
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Page 140: ...4 4 Options 4 33 Chap 4 SELECTING PERIPHERAL EQUIPMENT...
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Page 341: ...6 60 Example of Thermal Overload Detection Characteristics...
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Page 751: ...MEHT537 Phone 81 3 5435 7058 Fax 81 3 5435 7420 Printed in Japan 2012 08 H12b b12 CM00FOLS...