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3–16 Receiving & Installation MN735
5 – EPOT 2 Wire Mode (Electronic Potentiometer)
In EPOT 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 3-11 or logic signals from another device.
Figure 3-11 EPOT Connection Diagram
RLY1A
RLY1B
Fault
Analog Input 1 = 0–10VDC Setpoint
Analog Input 2 = 4–20mA Setpoint
8
9
10
Run REV
Increase
Decrease
Analog GND
Analog Input 1
Analog Input 2
Pot Reference
+24VDC
Run FWD
1
2
3
4
5
6
7
10KW Pot or
0-10VDC
Speed Output
Note:
Speed Command = Analog1 + Analog2 + EPOT
1 Analog GND. Reference for analog inputs.
2 Setpoint 0–10VDC. Single ended analog voltage input, referenced to 1.
3 Setpoint 4–20mA. Single ended analog current input, referenced to 1.
4 +10VDC reference voltage for potentiometer.
5 Analog output that represents the commanded speed output.
6 +24VDC for Optical Inputs power.
7 CLOSED starts motor operation in the Forward direction.
8 CLOSED starts motor operation in the Reverse direction.
9 Momentary CLOSED increases motor speed while contact is closed.
10 Momentary CLOSED decreases motor speed while contact is closed.
RLY1 Digital output that represents the fault status.