Woodward MicroNet TMR 5009FT Installation And Hardware Manual Download

Page: 13 / 95

Manual 26518V2

5009FT Installation/Hardware

Woodward

There are several connections for power on the FTM, each for a dedicated purpose. There are four +24
Vdc connections available for sourcing 4–20 mA inputs. Each connection is protected with a 0.1 A fuse
(F1-F4). There is a +24/12 Vdc output connection available for powering one proximity sensor. Each of
these connections is protected with a 0.1 A fuse (F5, F6).

Two FTMs are provided and used with each 5009FT control (FTM103-1 and FTM103-2). Refer to

Appendix A

for an overview of modules and FTMs used.

See Woodward MicroNet TMR manual

26167

Volume 2, Chapter 12, Section 2 for more details on the

TMR Analog Combo FTM.

Discrete I/O Module (Kernel A/B/C: A4)

Each 24/12 TMR Discrete I/O module (TMR High Density Discrete module) contains circuitry for twenty-
four (24) discrete inputs and twelve (12) TMR discrete outputs, and provides latent fault detection for
each relay output. Each discrete input may be 24 V, or 125 Vdc. Each relay output provides the option of
using a normally open contact, or a normally closed contact.

See Woodward MicroNet TMR manual

26167

Volume 1, Chapter 7, Section 2 for more details on the

TMR 24/12 TMR Discrete I/O Module.

Discrete Termination Modules (F/T Relay Module)

(FTM104-1A, FTM104-1B, FTM104-2A, FTM104-2B)

The Fault Tolerant Relay modules are used to connect discrete field wiring to the 5009FT control. Four FT
Relays (FTM104-1A, FTM104-1B, FTM104-2A, and FTM104-2B) are provided and used with each
5009FT control. Refer to

Appendix B

for an overview of FTMs. Each FTM connects to the control’s three

independent Discrete I/O modules through individual cables, and provides a common cage-clamp
terminal connection for customer field wiring. Each FT Relay box contains circuitry for six contact inputs,
three relay outputs and houses circuitry to:



route each contact input signal to the system’s three independent (rack mounted) discrete modules



provide an open / closed contact output based on associated discrete module commands



indicate the health of all relays (latent fault detection)

Discrete input power (contact wetting voltage) can be supplied by the 5009FT control or from an external
source. The 5009FT control provides an isolated 24 Vdc power source for contact wetting. The external
source may be 24 Vdc or 125 Vdc (North American installations only). Separate discrete input terminals
are provided based on the level of contact wetting voltage used. See

Appendix B

To comply with CE Marking under the European Low Voltage
Directive (LVD) and CSA requirements, the maximum external circuit
voltage for both the Discrete Inputs and Relay Output circuit are
limited to 18–32 Vdc maximum.

The discrete output relays are mounted on sockets, with 18 relays per FTM. Six relays are used to create
each relay output (normally open and normally closed contacts) and allow latent fault detection. See

Appendix B

. This configuration allows independent testing of each relay output (latent fault detection)

without concern of relay position. Customer power is connected to one side of the configuration and load
to the other.

Discrete outputs can be configured to use latent fault detection to identify output relay failures without
affecting operation. When the contacts are closed, they are periodically opened in pairs, to ensure that they
are in the correct state, and that they change state. When they are open, they are periodically closed
individually, to ensure that they close. Any failures are annunciated, and further testing is disabled.

Released