Mitsubishi Electric GOT2000 Series Connection Manual page 274

(22) RS-485 connection diagram 22)
* 3
GOT side
RDA
2
RDB
7
SDA
1
SDB
6
SG
5
RSA
3
CSA
4
RSB
8
CSB
9
FG
-
*1
*2
*3
*4
■2. Precautions when preparing a cable
(1) Cable length
The length of the RS-485 cable must be within the maximum distance.
(2) GOT side connector
For the GOT side connector, refer to the following.
➠
(3) YOKOGAWA temperature controller side connector
Use the connector compatible with the YOKOGAWA temperature controller side.
For details, refer to the user's manual of the YOKOGAWA temperature controller.
■3. Connecting terminating resistors
(1) GOT side
1) For GT27, GT25(Except GT2505-V), GT23
Set the terminating resistor setting switch of the GOT main unit to "Enable".
2) For GT2505-V
Set the terminating resistor selector.
For the procedure to set the terminating resistor, refer to the following.
➠
(2) YOKOGAWA temperature controller side
When connecting a YOKOGAWA temperature controller to the GOT, a terminating resistor must be connected.
➠
8 - 30
8.3 Connection Diagram
* 4
Pin No. of temperature controller differs depending on the model. Refer to the following table.
GREEN Series
Signal name
UT750/UP750
Pin No.
RSB (+) 28
RSA (-) 29
SG 30
Terminating resistor should be provided for a GOT and a temperature controller which will be a terminal.
For GT27 and GT25 (except for GT2505-V), set the terminating resistor to "Enable".
For GT2505-V, set the terminating resistor to "110 Ω".
➠ ■3.
Connecting terminating resistors
Connect FG grounding to the appropriate part of a cable shield line.
1.4.1 GOT connector specifications
1.4.3 Terminating resistors of GOT
8.5 Temperature Controller Side Setting
Temperature
controller
* 1
RSB(+)
RSA(-)
SG
* 4
Terminating resistor(220Ω 1/4W)
Model of temperature controller
UT100 Series
UT130/UT150/
UP150
Pin No.
3
4
5
Temperature
controller
* 2
UTAdvanced
UT100 Series
Series
UT152/UT155
UT52A/UM33A
Pin No. Pin No.
26 301
27 302
28 303
* 1
RSB(+)
RSA(-)
SG
UTAdvanced
Series
UT55A/UP55A
Pin No.
501
502
503