Woodward MicroNet TMR 5009, Installation/Hardware Manual

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Manual 85580V2 5009 Installation/Hardware
Woodward 45
Figure 4-9. Optional External Contact Wetting Configurations
WARNING—HIGH VOLTAGE
If high voltage discrete inputs are used, and there is 125 Vdc on the DTM
terminal blocks, there will be 125 Vdc on the DTM cables and cable
connectors. All modules should be installed and cables connected before
wiring the DTM.
Wiring Notes:
•
Refer to Figures 4-23 through 4-26 for Contact Input wiring connections to
the DTMs.
•
All contact inputs accept dry contacts.
•
The internal 24 Vdc power source, an external 18–36 Vdc power source or
an external 100–150 Vdc power source can be used for circuit wetting. (The
DTM’s European CE Compliance only applies to the 24 V option.)
•
If the 24 Vdc internal power source is used as for contact wetting, jumpers
are required between DTM terminals 33 & 34 and terminals 33 & 35.
•
If an external power source is used for contact wetting, the external source’s
common must be connected to the DTM’s discrete input commons
(terminals 34 & 35). To meet CE ratings, power for sensors and contacts
must be supplied either by the 5009 power supplies, or the external power
supply outputs must be rated for 30 Vdc or less and have its outputs fused
with appropriate sized fuses (a maximum current rating of 100/V, where V is
the supply’s rated voltage or 5 A, whichever is less).
•
Each contact input pulls 13 mA @ 24 Vdc (13 mA @ 120 Vdc) when closed,
and requires at least 4 mA @ 14 Vdc (4 mA @ 70 Vdc) to recognize a
closure command.
•
Verify that the correct input terminals are wired to with respect to the level of
contact wetting voltage used.