Eaton Crouse-hinds series User manual

MTL F880
8 Segment Redundant Fieldbus Power Supply for use
with the Yokogawa CENTUM 3000 R3 Control System
March 2022
INM F880 Rev 1
Instruction manual
MTL fieldbus networks

ii
INM F880 Rev 1
THIS PAGE IS LEFT INTENTIONALLY BLANK

iii
INM F880 Rev 1
CONTENTS
1 OVERVIEW ........................................................................1
2 DESCRIPTION ......................................................................1
3 COMPONENTS AND ACCESSORIES ...................................................2
4 MECHANICAL ......................................................................4
4.1 Mounting Orientation ....................................................................4
4.2 Enclosure Requirements ..................................................................5
4.2.1 General Requirements ....................................................................4
4.2.2 Outdoor Mounting .......................................................................5
4.3 DIN-rail mounting option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4.3.1 Mounting Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4.4 Removal from DIN-rail ....................................................................5
4.5 Mounting and Removal of the Power Modules................................................6
5 ELECTRICAL CONNECTIONS .........................................................6
5.1 DC Power Requirements ..................................................................7
5.2 Power A and Power B.....................................................................8
5.2.1 Redundancy ............................................................................8
5.2.2 Terminator ..............................................................................8
5.3 Alarm Connection........................................................................8
5.4 FInal Segment Connections ...............................................................9
5.5 Field Segment Connections ...............................................................9
5.6 Cable Screen / Ground Connections .......................................................10
5.7 Chassis Ground Connection ..............................................................10
5.8 Diagnostic Segment Connectors ..........................................................11
6 TESTING .........................................................................11
6.1 F801 Status and Alarm LEDs ..............................................................11
7 ROUTINE MAINTENANCE ...........................................................11
8 FM CONTROL DRAWINGS ..........................................................12
9 ATEX & UKCA SAFETY INFORMATION ................................................14
9.1 General ...............................................................................14
9.2 Installation ............................................................................14
9.3 Inspection and maintenance .............................................................15
9.4 Repair ................................................................................15
9.5 Marking ...............................................................................15

1
INM F880 Rev 1
MTL F880 - 8 Segment Redundant Fieldbus Power Supply for use with the
Yokogawa CENTUM 3000 R3 Control System
Figure 1 - F880-PS
1 OVERVIEW
The F880 redundant fieldbus power supply is designed to provide redundant power
for eight (8) Foundation fieldbusTM H1 segments. Connections are provided on the
F880-Cx Carrier for two redundant pairs of Yokogawa ALF111 fieldbus cards using
Yokogawa AKB336 cables. Power for the eight fieldbus segments is provided by two
F801 or F802 Power Modules mounted to the carrier and operating in a redundant
configuration. Failure alarms, galvanic isolation, power conditioning and segment
termination are incorporated into each Power Module. A single Power Module may
be used where redundancy is not required.
2 DESCRIPTION
For maximum reliability, the module carrier contains no components and only provides
interconnections between the power modules and the external connections. The
carrier circuit board is supported in a rigid metal frame that protects it from mechanical
damage. Secure DIN-rail mounting is provided by integrated fixings. The F801 or
F802 module provides galvanic isolation between the 24V DC input power and the
fieldbus segments, as required by the IEC61158-2 fieldbus standard and the Fieldbus
FoundationTM FF-831 validation test for fieldbus power supplies. There is also galvanic
isolation between the fieldbus segments, thereby preventing cross-talk between
segments in the event of ground faults in the field wiring. Each segment has its own
current limitation and passive fieldbus power conditioner. Termination of the fieldbus

2
INM F880 Rev 1
segment is automatically maintained when single or redundant F801 or F802 modules
are fitted. The F880-Cx carrier is equipped with connectors that will accept an F809F
diagnostic module. The module continuously monitors the performance of each of the
eight fieldbus segments, providing information on the network health.
Each Power Module has indicator LEDs to show both its status and that of the eight
segments under power. In normal operation, each green ‘Segment’ LED is lit, showing
that the segment is powered. If a segment is shorted, or its voltage is below the rated
output, its LED is extinguished, and the red ‘Alarm’ LED is lit. Redundant 24V DC (nom.)
input power is connected to the F880-Cx carrier using two-part pluggable connectors.
Field wiring connections are available with either pluggable screw terminals (F880-*S)
or pluggable spring clamp terminals (F880-*C).
Three variants of carriers are available in the F880 family to be used in two different
types of installations. For large installations where multiple F880 systems will be
installed in a cabinet, there are Left (F880-CL) and Right hand (F880-CR) versions
that make cabinet wiring symmetrical – see Figure 2b. In smaller installations where
carriers are not installed side-by-side, the F880-CA carrier provides terminal numbering
and consistent connector polarity – see Figure 2a
3 COMPONENTS AND ACCESSORIES
Product part numbers and their descriptions are given to the right.
PART No. DESCRIPTION
F801 8 Segment Power Module: 21.5V, 350mA
F802 8 Segment Power Module: 28V, 500mA
F809F 8 Segment Fieldbus Diagnostic Module
F880-CA-P* Carrier
F880-CL-P* Left Hand Carrier
F880-CR-P* Right Hand Carrier
F880-P* F880-CA-P* and two F801 modules
F880-L* F880-CL-P* and two F801 modules
F880-R* F880-CR-P* and two F801 modules
F880-2-P* F880-CA-P* and two F802 modules
F880-2-L* F880-CL-P* and two F802 modules
F880-2-R* F880-CR-P* and two F802 modules
F880-P*-NR F880-CA-P* and one F801 module
F880-L*-NR F880-CL-P* and one F801 module
F880-R*-NR F880-CR-P* and one F801 module

3
INM F880 Rev 1
F880-2-P*-NR F880-CA-P* and one F802 module
F880-2-L*-NR F880-CL-P* and one F802 module
F880-2-R*-NR F880-CR-P* and one F802 module
F800-BLK Blanking Module included with –NR systems
* = S – Pluggable Screw Terminal Connectors
C – Pluggable Spring Clamp Connectors
Figure 2a - F880-CA Carrier
Only units produced after date code 0726 include the Diagnostic Segment
connectors.
The Shield Ground Option is available on revision D.0 and later units.

4
INM F880 Rev 1
Figure 2b - F880-CL and F880-CR Carrier
The Shield Ground Option is available on revision D.0 and later units.
4 MECHANICAL
4.1 Mounting Orientation
The F880-Cx carriers are designed for mounting on a vertically aligned DIN-rail on a
vertical surface. This method of mounting ensures optimum heat dissipation from the
Power Modules.
4.2 Enclosure Requirements
4.2.1 General Requirements
The assembly may be mounted in hazardous (classified) areas – see Sections 8 & 9.
The following conditions must also be satisfied to ensure safe and reliable operation.
a) Prevent any form of pollution that could compromise the operation of the unit.
For example, choose an unpolluted location or a suitable enclosure to protect the
assembly.
b) Provide an adequate level of mechanical protection. This can be achieved by
selecting a protected location, a suitable enclosure, or a combination of both.
c) Ensure that all cable entries and connections are secure by making provision for
the careful routing and securing of all cables.
d) Provide adequate security against unauthorized interference.

5
INM F880 Rev 1
e) Ensure that the permitted ambient temperature range of –40°C to +65°C (derate to
+50°C for the F802 when loaded above 60% of its full load rating) is not exceeded.
Allow for power dissipation within the enclosure and consider the use of shading
against direct sunlight.
4.2.2 Outdoor Mounting
If the power system is mounted in an outdoor location, use a suitable enclosure with
a minimum of IP54 ingress protection. A higher level of ingress protection rating will
be necessary if the working atmosphere is or can be corrosive or if the enclosure is
subject to wet or dusty environments.
4.3 DIN-rail Mounting
Before starting to mount the carrier on the DIN rail, rotate all six of the DIN clamp
screws counterclockwise (i.e. unscrew) until the clamping tabs reach the position
shown in Figure 3 and none of the tabs extend into the channel for the DIN rail.
4.3.1 Mounting Procedure
Before starting to mount the carrier on the DIN rail, rotate all six of the DIN clamp
screws counterclockwise (i.e. unscrew) until the clamping tabs reach the position
shown in Figure 3a and none of the tabs extend into the channel for the DIN rail.
a)
b)
Figure 3 - DIN rail clamp positions before mounting
Press the carrier onto the DIN-rail and rotate each of the DIN clamp screws clockwise
until the tab tightens against the DIN-rail. The clamping tabs can be seen through the
Inspect clamps holes when they are in the correct position.
4.4 Removal from DIN-rail
The Power Modules must be removed from the carrier to obtain access to the DIN-
rail clamp screws. Support the carrier by pressing it to the DIN-rail and unscrew
(counterclockwise) the six DIN-rail clamp screws. Turn each screw approximately two
full turns when releasing its clamping tab from the rail. Remove carrier.

6
INM F880 Rev 1
4.5 Mounting and Removal of the Power Modules
The Power Modules are secured to the carrier with four screw mountings. There are
four locating connectors (two for each module) on the module carrier along with mating
connectors in the F801 or F802 module. Align the module with the retaining screws
and press onto the connector. Hold it in place while tightening the four retaining
screws. To remove a Power Module, support the module while unscrewing the four
retaining screws at its base. Lift the module off the carrier connector.
Note: Earlier versions of the module carriers do not have locating connectors. Align
using the retaining screws furthest from the module connector and rock onto the
connector.
5 ELECTRICAL CONNECTIONS
Figure 4- Electrical Block Diagram of F880-Cx
Megablock
wiring hub
F801 or F802
Power Module A
F801 or F802
Power Module B
Power B
Power A
To fieldbus devices
To fieldbus
segments
2 - 8
1
2
3
4
5
6
7
8
Segments 1-4
Segments 5-8
Host 1A
Host 1B
Host 2A
Host 2B
ALF111-A ALF111-A
ALF111-B ALF111-B
Yokogawa
redundant
FF cards

7
INM F880 Rev 1
The DC power, Alarm and Field Segment connectors are pluggable and available in a
screw terminal version (-xS) or a spring clamp version (-xC). See Figures 5a & 5b. The
terminals can accept the following conductor sizes:
Type Conductor size
Screw terminals (-PS) 0.14 to 2.5mm2
Spring clamp terminals (-PC) 0.2 to 2.5mm2
Figure 5a - ScrewTerminal Figure 5b- SpringTerminal
NOTE: When wiring to spring-clamp terminals, use a screwdriver with a 3-4 mm blade
and depress the spring-clamp button before inserting the termination cable. See
Figure 5b.
5.1 DC Power Requirements
Dual redundant power terminals requiring a nominal input voltage of 24VDC are
provided allowing the use of bulk power supplies with a supply range of 19.2–30VDC.
Input power cabling and over-current protection devices must be chosen to match the
current consumption.
An F880 system, operating with redundant F801 modules at 24VDC, will require 3.5A
in total if all eight segments draw the maximum of 350mA. With redundant F802
modules the system will draw 6A when all segments are loaded to 500mA. Note that
the total current could be drawn from either the Power A or Power B connection if one
power module is removed.
It is also important to size the Bulk Power Supply to handle the inrush current required
by the F801 or F802. Inrush is less than 2 times the maximum rated current for the
F801 with a duration lasting less than 1ms. For the F802, the inrush is less than 4
times the maximum rated current with a duration less than 10ms.