The Non-Standard Analog Input FTM is used with Non-Standard 8Ch Current Input module (see Chapter 9 MicroNet module information and Appendix A for FTM part number). The FTM has 8 current input channels with the output of channel 7 feeding a derivative circuit which in-turn is fed back into channel 8’s input. Originally, this derivative signal was used for detection of Combustor Discharge stall Pressures in turbines, but can be used for monitoring other rate of changes in the channel 7 input transducer. The first seven channels may be connected to current transducers. Channels 1 through 6 are standard 0–25 mA inputs with standard frequency response. The derivative circuit consists of two adjustable potentiometers that are factor set. Do not adjust these potentiometers. One MicroNet Low Density Analog cable is used to connect the FTM with the Non-Standard 8Ch Current Input module (see Appendix A for part numbers).The 24 Vdc Discrete Input/Output FTM is used with 48Ch DI, the 32Ch DO, and the 64Ch DO Modules (see Chapter 8, MicroNet module information and Appendix A for FTM part number). The FTM has 24 discrete input or output channels per module. The 48Ch DI modules utilizes two FTMs, the 32Ch DO module utilizes two FTMs, and the 64Ch DO module utilizes four FTMs for their I/O connections. Two MicroNet Low Density Discrete cables are used to connect the 48Ch DI and 32Ch DO modules with their FTMs. Four MicroNet Low Density Discrete cables are used to connect the 64Ch DO Module with its four FTMs (see Appendix A for part numbers).
The Position Controller FTM is used with 2Ch TM100 Modules, and the 2Ch EM35 Modules (see Chapter 10 for MicroNet module information and Appendix A for FTM part number). One MicroNet Low Density Discrete cable is used to connect each of the 2Ch TM100 Modules, and the 2Ch EM-35 Modules with their FTMs (see Appendix A for part numbers).The 24/12 Discrete Module is used with 48/24 Discrete Combo Module (see Chapter 8 MicroNet module information and Appendix A for FTM part number). The 24/12 Discrete Module has 24 discrete inputs connections and 12 SPDT relay outputs. Two relay modules connect to one 48/24 Discrete Combo Module. Each FTM uses one MicroNet High Density Analog/Discrete cable to connect it with the 48/24 Discrete Combo Module (see Appendix A for part numbers). This relay module incorporates an I/O lockout relay that will de-energize all of the relays if de-activated by the I/O lock signal from the DO module. All field connections use removable connectors for ease in replacing module in the field. All relays are field replaceable.
This 24 Vdc 48/24 Discrete FTM is used with the 48/24 Discrete Combo Module and one of three relay boxes (see Chapter 8 for MicroNet module information and Appendix A for FTM part number). Two MicroNet High Density Analog/Discrete cables are used to connect the FTM with the 48/24 Discrete Combo Module (see Appendix A for part numbers). The 48/24 Discrete FTM is then connected to either two 16Ch Relay Modules or one 32Ch Relay Module via a Low Density Discrete Cable(s) (See Appendix A for part numbers). All discrete Input wiring is through the 48/24 Discrete I/O FTM. Contact wetting voltage may be supplied by the 48/24 Discrete FTM. Optionally, an external 18–32 Vdc power (LV) source can be used to source the circuit wetting voltage. If the 24 Vdc internal power source is used for contact wetting, a jumper is required between FTM terminals 98 and 99. If an external 24 Vdc power source is used for contact wetting, connect the external 24 Vdc (+) to terminal 98 and external common 24 Vdc (–) to the FTM’s discrete input common, terminal 49. Do not install a jumper between terminals 98 and 99.
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