Mitsubishi Electric GOT2000 Series Connection Manual page 457

(13) RS485 connection diagram 13)
GOT side
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
3
CSA
4
RSB
8
CSB
9
*1 Pin No. of controller differs depending on the model. Refer to the following table.
*2 Terminating resistor should be provided for a controller which will be terminating resistors.
*3 Set the terminating resistor of The GOT side.
➠ ■3.
*4 Do not connect SG of the controller and SG of the GOT.
■2. Precautions when preparing a cable
(1) Cable length
The maximum length of the RS-485 cable must be 1,200m or less.
(2) GOT side connector
For the GOT side connector, refer to the following.
➠
1.4.1 GOT connector specifications
(3) CHINO controller side connector
Use the connector compatible with the CHINO controller side module.
For details, refer to the user's manual of the CHINO controller.
■3. Connecting terminating resistors
(1) GOT side
(a) For GT27, GT25(Except GT2505-V), GT23
Set the terminating resistor setting switch of the GOT main unit to "Enable".
(b) For GT2505-V
Set the terminating resistor selector to "110Ω".
➠
1.4.3 Terminating resistors of GOT
(2) CHINO controller side
When connecting a CHINO controller to the GOT, a terminating resistor must be connected to the CHINO controller.
➠ User's Manual of the CHINO controller
*3
Controller
RDA
RDB
SDA
SDB
*4
SG
Connecting terminating resistors
Signal name
RDA
RDB
SDA
SDB
SG
Terminating resistor(100Ω 1/4W)
*1
Controller
RDA
RDB
SDA
SDB
SG
Controller type
SE3000 JU
Terminal name Terminal No.
RDA 3
RDB 4
SDA 1
SDB 2
SG 5
11.3 Connection Diagram
* 2
*1
KE3000 LE5000
Terminal name Terminal name
RDA RDA
RDB RDB
SDA SDA
SDB SDB
SG SG
11 - 23
11