Mitsubishi Electric 800 Series Instruction Manual page 476

NOTE
• When performing RS-485 communication with multiple inverters, use the RS-485 terminals. (Refer to
• Computer-inverter connection cable
Refer to the following for the connection cable (RS-232C  RS-485 converter) between the computer with an RS-232C
interface and an inverter. Commercially available products (as of October 2020)
Model
Interface embedded cable
DAFXIH-CAB (D-SUB25P for personal computer side)
DAFXIH-CABV (D-SUB9P for personal computer side)
+
Connector conversion cable DINV-485CAB (for inverter side)
Interface embedded cable dedicated for inverter
*2
DINV-CABV
*2 The conversion cable cannot connect multiple inverters. (The computer and inverted are connected in a 1:1 pair.) This is an RS232C-to-RS485
converter-embedded conversion cable. No additional cable or connector is required. For the product details, contact the manufacturer.
• Use Ethernet cables compliant with the following standards when fabricating the cable.
Ethernet cable
Category 5e or higher straight cable
*3
(double shielded / STP)
*3 Do not use pins No. 2 and 8 of the communication cable.
5.12.2 Wiring and configuration of RS-485 terminals
 RS-485 terminal layout
Terminating resistor switch
Initially-set to "OPEN".
Set only the terminating resistor switch of
the remotest inverter to the "100Ω" position.
P5S SG SDA1
(VCC) (GND) (TXD1+)
OPEN
VCC GND + TXD
100Ω
VCC GND + TXD
P5S SG SDA2
(VCC) (GND) (TXD2+)
Name
RDA1 (RXD1+) Inverter receive +
RDB1 (RXD1-) Inverter receive -
RDA2 (RXD2+) Inverter receive + (for branch)
RDB2 (RXD2-) Inverter receive - (for branch)
SDA1 (TXD1+) Inverter send +
SDB1 (TXD1-) Inverter send -
SDA2 (TXD2+) Inverter send + (for branch)
SDB2 (TXD2-) Inverter send - (for branch)
P5S (VCC) 5V Permissible load current 100 mA
SG (GND) Earthing (grounding) (connected to terminal SD)
*2
Connector
RJ-45 connector
SDB1 RDA1 RDB1
(TXD1-) (RXD1+) (RXD1-)
- + RXD -
- + RXD -
SDB2 RDA2 RDB2
(TXD2-) (RXD2+) (RXD2-)
Description
Manufacturer
Diatrend Corp.
Type
The following conditioning cables:
• IEEE 802.3 (1000BASE-T)
• ANSI/TIA/EIA-568-B (Category 5e)
5.12 (N) Operation via communication and its settings
3
page 476.)
4
5
5
5
6
7
8
9
10
475
5. PARAMETERS