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A.3 Furnace Pressure Control with 3-State Pulse Output
Selection of I/O
The potentiometer can be connected to AI1 and AO1. Jumper 1 must therefore be
closed.
The pressure transmitter PT1 does not have its own power supply and therefore
must be fed from the controller. The pressure signal is connected to AI2.
The high and low alarms is configured to DO1 and DO2.
The motor is controlled by means of the three state pulse output on DO3, DO4,
increase and decrease.
The Autotuner is used to set the PID parameters for this application.
Electrical Installation
Power Wiring
For details of the power wiring please refer to chapter 2 of this manual.
Signal Wiring
Connect the signal wiring as shown in the figure below.
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Appendix A: Application Examples
493-0736-11 (6-2)
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