7
TRUNKGUARD
®
Fieldbus
Power Supply
TPS400
SPM201 Surge Protection Module
Surge Protection Modules (optional component) fi t
onto the fi eld-side pluggable socket on the DIN Carrier
face and accept the fi eld-side pluggable terminals.
They only mount in one orientation. A long screw
is provided to secure the unit to the Carrier. This
screw must be fi tted in order to complete the ground
connection of the Surge Protection Module.
Device Coupler
The TPS400 can supply conditioned power to any
suitably certifi ed fi eldbus device coupler (also spur
junction block, brick, etc.) including the MooreHawke
TG200 and TG300 TRUNKGUARD Series, the
SPURBARRIER™ Series, and third-party device
couplers. Please consult the appropriate device
coupler manual for installation instructions
Wiring Connections
Any cable suitable for FOUNDATION fi eldbus /
PROFIBUS PA applications may be used. This is
typically 6-22 AWG cable with individual shields
(normally called Type A cable). Components from
multiple segments may be combined within a
multi-core cable. It is recommended that various
component shields remain independent of each other
within the multi-core cable.
Wire terminations should be made from cables
stripped to expose no more than 8mm (0.3 in) of
conductor and inserted fully into the terminal opening.
Bootlace ferrules are recommended for use with
stranded cable.
Field-side segment wiring is made via screw-
clamp pluggable terminals marked FIELD. HOST
connections are made either through the terminals
marked HOST or via multi-way cables plugged
directly to the HOST connectors on the Carrier. See
Appendices for HOST specifi c hook up information.
Nominal 24Vdc (19.2-30Vdc) power is required for
terminals marked DC Power. Provisions are made for
two independent DC feeds to the Carrier.
WARNING:
To avoid an explosion hazard
do not
disconnect equipment at trunk terminals when
a fl ammable or combustible atmosphere is
present.
Note:
If only one DC power input is to be used,
the FMD252 (if fi tted) will indicate an alarm.
Hence, use a pair of jumper wires between
both DC inputs A and B terminals to insure it
operates correctly.
Once all wiring connections have been made, all
retaining screws on each module should be securely
fastened and any external enclosure closed (where
applicable).
Terminator
Each Segment must have two terminators to function
properly. The terminator (100 ohm resistor in series
with a 1 microfarad capacitor) provides an end load
for the segment and prevents refl ections. A terminator
is hard wired on the TPS400 carrier board for each
segment. Another terminator should be placed at the
end of the segment in the fi eld (if using a TG Series
device coupler with an auto-termination feature the
second terminator will automatically be applied).
Contact MooreHawke if the HOST link cable is in
excess of 30m (100ft).
