Emerson Micro Motion 5700 Installation Manual page 29

Installation Manual
MMI-20075112
Figure 4-6: FO and DO wiring when connected to a measurement system
A. Frequency Output or Discrete Output
B. Channel C
C. 8-30 VDC (maximum)
D. Load resistor (500 Ω resistance recommended for 24V supply). Use the following equations for other load
resistance values:
• Rmax = (Vsupply – 6V) / 0.003 (maximum value of load resistor allowed)
• Rmin = 250 ohms (minimum value of load resistance required)
E. Counter
Figure 4-7: DO wiring with a relay or indicator
A. Discrete Output
B. Channel C
C. 8-30 VDC (maximum)
D. Relay or indicator
Current = (Vsupply – 0.8V) / (1690 ohms + resistance of D in ohms)
Related information
Frequency Output high and low voltages for nonhazardous installations
Installation Manual
Wiring the channels
August 2020
29