Mitsubishi Electric GOT2000 Series Connection Manual page 154

(7) RS-485 connection diagram 7)
SDA
SDB
RDA
RDB
RSA
CSA
RSB
CSB
*1
*2
*3
*4
■2. Precautions when preparing a cable
(1) Cable length
The length of the RS-485 cable must be 500m or less.
(2) GOT side connector
For the GOT side connector, refer to the following.
➠
(3) FUJI temperature controller side connector
Use the connector compatible with the FUJI temperature controller side.
For details, refer to the user's manual of the FUJI temperature 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".
For the procedure to set the terminating resistor, refer to the following.
➠
(2) FUJI temperature controller side
When connecting a FUJI temperature controller to the GOT, a terminating resistor must be connected.
➠
5 - 12
5.3 Connection Diagram
* 3
GOT side
1
6
2
7
SG
5
3
4
8
9
Pin No. of temperature controller differs depending on the model. Refer to the following table.
Signal name
+
-
Terminating resistor should be provided for a temperature controller which will be a terminal.
Set the terminating resistor of GOT side which will be a terminal.
➠ ■3.
Connecting terminating resistors
Connect FG grounding to the appropriate part of a cable shield line.
1.4.1GOT connector specifications
1.4.3Terminating resistors of GOT
5.5 Temperature Controller Side Setting
Temperature
controller side
+ * 1
- * 1
* 4
* 4
Terminating resistor(100Ω 1/2W)
PXR3 PXR4
Pin No. Pin No.
15 7
14 8
Temperature
controller side
+ * 1
- * 1
* 2
Model of temperature controller
PXR5/9 PXG4
Pin No. Pin No.
1 7
2 8
PXG5/9 PXH9
Pin No. Pin No.
1 14
2 16