Omron G3PW, Руководство пользователя

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Wiring for Specific Applications Section 3-4
3-4 Wiring for Specific Applications
Automatic Operation
Wiring Example for Automatic Operation Using Current Signal Input of 4 to 20 mA
Wiring Example for Automatic Operation Using Voltage Signal Input of 1 to 5 V
Wiring Example for Automatic Operation Based on RS-485 Communications
Note A terminator must be connected at each end of the RS-485 trans-
mission path. The terminators must be at least 54
Ω
combined.
+
−
1 2 3 4 5
Temperature
controller or
other controller
4 to 20-mA output
+
1 2 3 4 5
−
Temperature
controller or
other controller
1 to 5-V output
Automatic
Manual
Multi-drop (See note.)
Max. of 31 nodes
1. RS-485 (+)
2. RS-485 (
−
)
3. Main setting
4. Main setting COM
5. Duty setting
6. Duty setting COM
7. Alarm output 1 (+)
8. Alarm output 1 (
−
)
9. Alarm output 2 (+)
10. Alarm output 2 (
−
)
11. Event input (+)
12. Event input (
−
)
13. Reset input (+)
14. Reset input (
−
)
For standard models, 1 and 2
are not used.
Load
Load
+
−
+
−
EJ1 Modular Temperature
Controller, CJ-series Serial
Communications Unit, etc.