AW Gear Meters EMO-3000 - Manual (Page 11)

EMO‐3000
Operation and Programming Manual
10
PIN 4 Primary frequency input A. The input is used for the primary flow transmitter for Monitor, PID * ,
and Ratio modes. The input has an opto‐coupler isolation circuit and a 4‐position frequency divider chip
(refer to Appendix H and Q).
PIN 5 4 ‐ 20 mAmp (+) input. This normally serves as the set point input for the PID mode. The
isolation to ground is 400 Kohms.
PIN 6 4 ‐ 20 mAmp (‐) input current loop return for pin 5.
PIN 7 4 ‐ 20 mAmp output. The ground reference for this signal is pin 2. The driver voltage is 20 ‐ 24v.
Therefore, the output drives a load of approximately 800‐1000 ohms.
PIN 8 0 ‐ 5 volt input. The ground reference for this signal is pin 2. This is the Fluid Table Input. There
are 32 separate color tables.
PIN 9 Reset input. The Totalized values for both the A and B inputs are reset to 0 if a voltage is applied
to this pin. The voltage level applied can be from 3 ‐ 24 volts; momentary contact is recommended.
PIN 10 0 ‐ 5 volts output. The ground reference for this signal is pin 2.
PIN 11 Transparent Input or Limit 1 Output. In the PID operating mode it is the Transparent Input or as
Limit 1 Output in monitor mode. Refer to page 14 Input/Output Pin Control Section.
PIN 12 Analog Hold Input or Limit 2 Output. In the PID operating mode, it is the Analog Hold, or as Limit
2 in the monitor mode. Refer to page 14 Input/Output Pin Control Section.
PIN 13 Hold Totalizer Input or Limit 3. In the PID operating mode, it is the Hold Totalizer, or as Limit 3
Output in the monitor mode. Refer to page 14 Input/Output Pin Control Section.
PIN 14 Setpoint Reached Output or Limit 4. In the PID operating mode, it is the Setpoint Reached
Output, or as Limit 4 Output in the monitor mode. Refer to page 14 Input/Output Pin Control Section.
PIN 15 This pin is the common line for pins 11 ‐ 14. The separate common line allows for the isolation of
pins 11, 12, 13 and 14 from the EMO‐3000 internal ground.
Operating Modes
The EMO‐3000 has two primary operating modes, monitor and PID 02, and a secondary mode, PID 03.
The PID 03 has the same variables as PID 02; however, this mode is reserved for experiential operations.
Contact AW Gear Meters before use. Select the desired mode under programming F4, and then General
A F2 selection (see page 24).
*
Process Identification