Instruction manual

Output Wiring
continued
RFT9739 Field-Mount Transmitter Instruction Manual 37
Output Wiring Startup TroubleshootingBefore You Begin Getting Started Mounting
Power-Supply and
Sensor Wiring
Figure 5-11. Control output wiring for open collector mode
Figure 5-12. Location of resistor R15 (R2) on output board
RFT9739
output terminals
Receiving
device
Resistor
(See note)
DC
power
supply
Resistor must be of sufficient value to limit loop current to
less than 0.1 ampere, depending on total loop resistance.
Connectors behind
output terminal blocks
CAUTION: After clipping resistor R15 or R2, an external power supply is
required to use the transmitter’s frequency pulse output. See page 36.
Resistor R15 or R2