Baldor MN735 manual PID 2 Wire Mode, PID Connection Diagram

6 – PID 2 Wire Mode

In PID 2 wire mode, the control is operated by the opto isolated inputs and the analog command input. The opto inputs can be switches as shown in Figure 3-12 or logic signals from another device.

Figure 3-12 PID Connection Diagram

Process
Enable	Command
Open	Analog Input 1 (Speed Ref)
Closed	PID

Analog Input 1 = 0–10VDC Setpoint Analog Input 2 = 4–20mA Feedback

Related Parameters

p8 Jog Speed

Jog Accel

Jog Decel

	Jog
	Process Enable
	Run REV
	Run FWD
	+24VDC
	Speed Output
	Pot Reference
	Analog Input 2
10KW Pot or	Analog Input 1
0-10VDC	Analog GND

10

9

8

7

6

5

4

3

2

1

RLY1A

Fault

RLY1B

1Analog GND. Reference for analog inputs.

2PID Setpoint 0–10VDC. Single ended analog voltage input, referenced to 1.

3PID Feedback 4–20mA. Single ended analog current input, referenced to 1.

4+10VDC reference voltage for potentiometer.

5Analog output that represents the commanded speed output.

6+24VDC for Optical Inputs power.

7Momentary CLOSED starts motor operation in the Forward direction. In Jog mode (10 Closed), jogs motor in forward direction as long as switch is closed.

8Momentary CLOSED starts motor operation in the Reverse direction. In Jog mode (10 Closed), jogs motor in reverse direction as long as switch is closed.

9CLOSED enables process mode. OPEN selects Analog Input 1 setpoint.

10CLOSED places control in Jog mode. Forward and Reverse run are used to Jog the motor at Jog speed.

RLY1 Digital output that represents the fault status.

MN735 Receiving & Installation 3–17