Instruction manual

Output Wiring
continued
RFT9739 Rack-Mount Transmitter Instruction Manual 39
Output Wiring Startup TroubleshootingBefore You Begin Getting Started Mounting
Power-Supply and
Sensor Wiring
Optocoupler output
The transmitter has an externally powered passive optocoupler output in
addition to the frequency/pulse and dual-channel frequency outputs.
The optocoupler output is derived from the primary frequency output,
and represents the same flow rate variable as the frequency/pulse
output.
Use RFT9739 terminals CN2-D10, CN2-D12, and CN2-D4 for the
optocoupler output.
•
Figure 5-15
illustrates the wiring connection from the optocoupler
output to an auxiliary device.
• Signal voltage is 0-2 VDC low, 16-30 VDC high, with a 0.01 ampere
maximum sinking capability.
Figure 5-15. Optocoupler output wiring
Clip shield at
host receiver end
OPTOCOUPLER– (emitter)
GND (ground)
RFT9739
output terminals
OPTOCOUPLER+ (collector)
Host receiver
Example: PLC