3
TRUNKGUARD
®
Fieldbus
Power Supply
TPS400
Introduction
The TRUNKGUARD TPS400 Power Supply enables
fast and easy implementation of fi eldbus systems
by providing properly conditioned power for simplex
and duplex FOUNDATION fi eldbus H1 networks.
TRUNKGUARD TPS400 is FOUNDATION fi eldbus
registered and fully compliant with FF831-1 (the
technical specifi cation for fi eldbus power supplies).
TRUNKGUARD TPS400 is composed of a DIN Carrier
populated with individual Power Conditioner Modules
(TPS202/TPS205). A Fieldbus Diagnostics Module
(FDM252) may be fi tted onto the DIN Carrier to
provide alarm and diagnostics information. It provides
LED indicators for DC power status, cable short-
circuits and noise on each segment, and a common
contact closure (opens on alarm). The TPS202
and FDM252 are also used in the Fault Tolerant
TRUNKSAFE system.
Another component of the TRUNKGUARD TPS400 is
the optional Surge Protection Module, SPM201, which
provides a full 3-element surge suppression circuit for
the selected segment. The SPM201 fi ts directly onto
the DIN Carrier pluggable terminal socket (fi eld-side)
for the segment being protected. This eliminates the
need for additional panel wiring or mounting space.
A ground connection for surge protection is provided
through a bus bar located within the DIN Carrier. It
is made externally available as a separate grounding
stud.
Features
•
Delivers up to 500mA per segment.
Available
models supply 350mA (for non-incendive, energy-
limited applications) or 500mA (for high current
demand applications) of isolated, conditioned
simplex (non-redundant) or duplex (redundant)
power for up to four segments.
•
High-availability, modular design.
Provides
individual power conditioner modules for each
segment. Modules are hot-swappable with load-
sharing in redundant pairs to maintain power to the
segment in the instance that one module in a pair
needs to be removed.
•
Universal Modules.
Power conditioner and other
modules can be used in simplex, duplex and fault
tolerant confi gurations.
•
Economical fi eldbus physical layer diagnostics.
An optional Diagnostics Module (FDM252) provides
a master alarm and LED-based alarms for segment
noise, DC voltage levels and conditioner status
faults.
•
Pluggable surge protection (optional).
Surge
protection with a three-element surge arrestor is
available per segment to protect the TPS400 and the
HOST from surges coming in on the trunk cables.
Figure 1.
The TRUNKGUARD TPS400 provides duplex (redundant) or simplex power to each fi eldbus segment (duplex unit shown).
T
24DC
Power
Input “B”
Integral Fieldbus
Termination
Fieldbus
Devices
Fieldbus
Device Coupler
Fieldbus
Trunk In
Fieldbus
Trunk Out
Host
Input
Additional
Fieldbus
Device
Couplers
24DC
Power
Input “A”
Additional Fieldbus H1 Segment Trunks
MooreHawke
TRUNKGUARD Series (TG200 and TG300)
SPURBARRIER Series
or
Third-Party
Optional
Removable
Surge
Protection
Modules
(SPM201)
Redundant
24Vdc
Power Supply
Inputs
Diagnostic Master Alarm
Contact Closure
(Failsafe, Open on Alarm)
Optional
Fieldbus Diagnostics
Module (FDM252)
LEDs and Master
Alarm Indicate:
24DC “A” Input Voltage Low
24DC “B” Input Voltage Low
Segment #1-4 Noise High
Power Conditioner Alarm
HOST
Specific
H1 Connectors
Universal Plug-In Power
Conditioner Module
TPS202 (350mA) is Compatible
with TRUNKGUARD (TPS401/TPS402)
and TRUNKSAFE (TPS201) DIN Carriers
TPS205 (500mA) is Compatible
with TRUNKGUARD (TPS401/ TPS402)
DIN Carrier
Duplex Configuration Shown
FIELDBUS NETWORK
Shield, Surge
and Case
Grounds
Diagnostic
LEDs Indicate:
Carrier Fault
Host or Field Cable Short Circuit
High Field Current (>Current Rating)
Low Module Output Voltage (<18V)
