American Power Conversion MX28B-400 User's Manual

DC POWER PLANT
PRODUCT MANUAL
MODEL MX28B-400
+24VDC 400Amp
APC DC Networks
11035 Switzer Avenue
Dallas, TX 75238
(800) 800-4APC
April, 2002
Revision 1
Part Number 990-9218
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REVISION HISTORY
Revision
Date
By
1
04/19/02
RET
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Description
Initial release.
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TABLE OF CONTENTS
1. GENERAL INFORMATION ............................................................................................... 1
1.1 INTRODUCTION ............................................................................................................................................. 1
1.2 PRECAUTIONS ............................................................................................................................................... 1
1.3 INSPECTION UPON RECEIPT OF GOODS ..................................................................................................... 1
1.3.1 General................................................................................................................................................ 1
1.3.2 Visible External Damage ................................................................................................................ 1
1.3.3 Concealed Damage .......................................................................................................................... 2
1.3.4 Return of Damaged Goods ............................................................................................................. 2
2. CUSTOMER SERVICE AND SUPPORT ............................................................... 3
3. WARRANTY PROVISIONS ................................................................................................ 5
3.1 GENERAL PROVISIONS ................................................................................................................................ 5
3.1.1 Warranty Returns.............................................................................................................................. 5
3.1.2 Warranty Repair or Replacement.................................................................................................. 5
3.2 EXCLUSIONS AND LIMITATIONS ................................................................................................................ 5
4. PRODUCT OVERVIEW AND TECHNICAL DESCRIPTION ........ 7
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
DESCRIPTION ................................................................................................................................................ 7
POWER OUTPUT CAPACITY ...................................................................................................................... 11
RECTIFIERS ................................................................................................................................................. 11
CONTROL UNIT .......................................................................................................................................... 11
AC INPUT POWER ...................................................................................................................................... 11
BATTERY CONNECTIONS ........................................................................................................................... 12
DC DISTRIBUTION ..................................................................................................................................... 12
MOUNTING .................................................................................................................................................. 13
ENVIRONMENTAL ...................................................................................................................................... 13
MECHANICAL ............................................................................................................................................. 13
COMPLIANCE .............................................................................................................................................. 13
5. INSTALLATION PROCEDURES ................................................................................ 15
5.1 PREPARATION ............................................................................................................................................. 15
5.1.1 Recommended Tools....................................................................................................................... 15
5.1.2 Recommended Test Equipment .................................................................................................... 15
5.1.3 Equipment Inspection..................................................................................................................... 15
5.1.4 Safety Precautions .......................................................................................................................... 15
5.1.5 Room/Locations............................................................................................................................... 15
5.1.6 Mounting ........................................................................................................................................... 16
5.1.7 Ventilation ........................................................................................................................................ 16
5.2 AC SERVICE AND GROUND CONNECTIONS ........................................................................................... 16
5.3 BATTERY CONNECTIONS .......................................................................................................................... 17
5.3.1 Battery Disconnect ......................................................................................................................... 17
5.3.2 Cable Sizing Considerations ........................................................................................................ 17
5.3.3 Connecting the Cables ................................................................................................................... 17
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5.4 DC SYSTEM GROUNDING ................................................................................................................ 17
5.5 RECTIFIER INSTALLATION ........................................................................................................................ 17
5.6 ALARM CONNECTIONS .............................................................................................................................. 18
5.6.1 External Alarm Inputs .................................................................................................................... 18
5.6.2 Alarm Outputs.................................................................................................................................. 18
5.7 CONNECTING THE LOADS ........................................................................................................................ 19
5.7.1 DC Circuit Breakers and Fuses ................................................................................................... 19
5.7.2 Installation of Circuit Breakers and Fuses ............................................................................... 20
5.7.2.1 Plug-in Circuit Breakers ..................................................................................................................20
5.7.2.2 GMT Fuses............................................................................................................................................21
5.7.3 Load Connections ........................................................................................................................... 21
5.7.3.1 Circuit Breakers ..................................................................................................................................21
5.7.3.2 GMT Fuses............................................................................................................................................21
5.8 BATTERY TEMPERATURE PROBE INSTALLATION ................................................................................. 22
5.9 POWER-UP AND CHECKOUT..................................................................................................................... 22
5.9.1 Apply AC Power .............................................................................................................................. 22
5.9.2 System Parameters Verification/Adjustment............................................................................. 22
5.9.3 Full System Power Up ................................................................................................................... 23
6. SETUP, ADJUSTMENTS, AND OPERATION ............................................... 25
6.1
6.2
6.3
6.4
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USER INTERFACE ....................................................................................................................................... 25
EXTERNAL ALARM INPUTS ...................................................................................................................... 25
ALARM OUTPUT RELAYS ......................................................................................................................... 26
PARAMETER LOCATIONS, DESCRIPTIONS, AND DEFAULT VALUES .................................................. 26
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1. GENERAL INFORMATION
1.1 Introduction
DC Power Plants from APC DC Network Solutions Inc. have unique features that make them
easy to install, maintain, and upgrade. The rectifier units are modular and truly “hot-pluggable”
into the shelf assembly without any separate ac wiring.
All system settings are made from the system control unit that provides monitoring and control
functions for each component of the system as well as alarm listings for system diagnosis and
maintenance.
The APC DC Network Solutions Inc.. International network of sales and service offices and
qualified representatives provides sales assistance for proposals, purchases, and after-sales
support.
APC DC Network Solutions Inc. provides nationwide 24-hour, 7-day service response by
dialing:
(800) 800-4APC
This service will answer your call, gather specific service information, and have a qualified APC
service representative contact you as quickly as possible (refer to section on customer service
and support).
1.2 Precautions
It is extremely important to read, understand, and strictly follow the instructions in
sections on installation and setup. Also, please note the special SAFETY PRECAUTIONS
outlined in Section 5.1.4 before beginning actual installation of the power system.
If any precautions are not clearly understood, or local conditions are not covered, contact the
nearest APC DC Network Solutions Inc. Representative or APC DC Network Solutions Inc.. at
(800) 800-4APC for clarification.
Also, refer to all applicable federal, state, and local regulations, and industry guidelines for
correct installation of this power system.
1.3 Inspection upon Receipt of Goods
1.3.1 General
APC DC Network Solutions Inc. has taken precautions in packing the power equipment for
shipment to ensure its safe arrival; however, the entire shipment including any boxes or crates
should be inspected upon receipt for evidence of damage that may have occurred during transit.
1.3.2 Visible External Damage
It is the responsibility of the person receiving the shipment to inventory and inspect all materials
against the bill of lading or waybill provided IMMEDIATELY upon taking delivery while the
carrier representative is STILL ON SITE. Please be sure that all items are accounted for,
including the correct number of pallets and the quantity of accessory and/or component boxes.
Also, note any visible external damage that may have occurred during transit.
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If damage has occurred or the quantity of items is not correct, then:
1) Make a descriptive notation on the delivery receipt before signing.
2) File a damage or shortage report with the carrier that delivered the shipment.
1.3.3 Concealed Damage
It is the customer’s responsibility to unpack the power system and equipment received from
APC DC Network Solutions Inc. and check for concealed damage. Within 15 days of receipt,
check the materials received against the detailed packing list to verify that the quantity and
condition are complete and satisfactory.
Again, note any damage to the internal packing material and/or material shortages. If damage or
shortage is noted, then:
1) Request an inspection by the carrier;
2) File a concealed damage claim; and/or
3) File a material shortage claim with your APC DC Network Solutions Inc.. representative.
DELAY IN NOTIFYING THE CARRIER MAY RESULT IN LOSS OF RIGHT TO
REIMBURSEMENT FOR DAMAGES OR LOSS.
If you are unsure about the appearance of a part while conducting the materials inventory and
inspection, refer to the manual or contact the Customer Service Department of APC DC
Network Solutions Inc..
Should you have any questions concerning potential damages or should you experience a
lack of cooperation from your carrier, please contact your APC DC Network Solutions
Inc.. representative, or call APC DC Network Solutions Inc..
1.3.4 Return of Damaged Goods
Should equipment be damaged and require return to APC DC Network Solutions Inc.. for repair,
the APC DC Network Solutions Inc. service representative will provide instructions along with a
valid returned material authorization (RMA) number to facilitate return of the damaged goods to
the APC DC Network Solutions Inc. repair center.
It is important that the steps outlined in Section 1.3.2 and Section 1.3.3 above are followed
carefully. Your APC DC Network Solutions Inc. representative will assist you, if required, in
obtaining proper disposition of an initial delivery return issue; however, a valid RMA number
must be obtained before returning any equipment to APC DC Network Solutions Inc..
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2. CUSTOMER SERVICE AND SUPPORT
APC DC Network Solutions Inc. manufactures a line of power plants and provides customers
with complete product and systems support and service. APC DC Network Solutions Inc. has an
international network of factory trained service technicians. The service organization is on call
24 hours a day, 365 days a year.
If there is a problem with the power system, contact APC at
(800) 800-4APC
Units returned for repair can be turned around within 24 to 48 hours of receipt at the
factory location. Shipment should be sent pre-paid. The unit will be returned pre-paid
provided it was received that way.
An RMA must be obtained for all equipment returned to APC DC Network Solutions Inc.. It is
important that correct procedures be followed in filing an RMA, including providing an accurate
written description of the problem. An accurate written problem description will help ensure
that the unit will be properly repaired.
If a unit is returned and a “No Fault Found” results, APC DC Network Solutions Inc. reserves
the right to bill the customer for labor and assess a service charge to cover extra costs incurred.
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3. WARRANTY PROVISIONS
3.1 General Provisions
APC DC Network Solutions Inc. warrants the power equipment and components it manufactures
or sells against defective materials and workmanship for a period of TWO (2) YEARS from the
date of shipment.
3.1.1 Warranty Returns
If initial physical inspection results in identification of a material or workmanship flaw(s) that
could impair product performance as defined by APC’s electrical and physical specification in
effect at the time of shipment, and if this flaw(s) is not due to transportation damage or
installation abuse, contact APC DC Network Solutions Inc.. or call the 24-hour emergency
number, (800) 800-4APC, to request assistance.
You will be provided either a) an RMA number with instructions for return of the equipment or
component(s) to the APC DC Network Solutions Inc. factory service center, FOB destination,
freight pre-paid, for examination, or b) for non-returnable systems and equipment, notice to wait
until an APC DC Network Solutions Inc. authorized service representative arrives at the site to
inspect the equipment. Repaired or advance replacement modules or circuit components will
normally be available within 24 to 48 hours of receipt of equipment or RMA.
3.1.2 Warranty Repair or Replacement
If, during the warranty period, the supplied equipment is found to be physically or electrically
faulty due to defective materials or workmanship on the part of APC DC Network Solutions
Inc.., the defective product(s) or component(s) will be repaired or replaced at the sole option of
APC DC Network Solutions Inc. without charge to the user for replacement materials or repair
labor. (The procedure outlined above for contacting APC DC Network Solutions Inc.. must be
followed.) Costs incurred for replacement installation including, but not limited to, installation
equipment, travel expenses of an APC DC Network Solutions Inc. representative(s), and costs of
installation material transportation expenses are not the responsibility of APC DC Network
Solutions Inc.. Any replacement product(s) or component(s) shall only complete the remaining
unused portion of the original warranty of the replaced product(s) or component(s).
3.2 Exclusions and Limitations
1. This warranty applies only to the original US domestic purchaser (user) and is not
transferable internationally, except with expressed written consent from APC DC Network
Solutions Inc.
2. APC DC Network Solutions Inc. reserves the right to void the warranty if identification
marks or serial numbers have been removed or tampered with, or the defect is determined to
have been caused by misuse, neglect, improper installation, environmental conditions, nonauthorized repair, alteration, or accident.
3. This warranty does not cover physical damage due to the acts of nature or man that stress the
equipment or component(s) beyond design limits and exert undesirable influence aside from
normal wear and tear.
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4. APC DC Network Solutions Inc. assumes no responsibility for any work accomplished or
expenses incurred except with expressed written consent from APC DC Network Solutions
Inc..
5. APC DC Network Solutions Inc. shall not be liable to the user (purchaser) or any third party
for indirect, incidental, or consequential damages such as, but not limited to, loss of use, loss
of profits, costs associated with removal/installation of a defective product(s) or
component(s) arising out of the sale or relating to the use of this product, and the user
(purchaser) assumes responsibility for all personal injury and property damage resulting
from the handling, possession, or use of the product. In no event shall the liability of APC
DC Network Solutions Inc. for any and all claims, including claims of breach of warranty or
negligence, exceed the purchase price of the product that gave rise to the claim.
The above warranty is in lieu of all other remedies, including actions for contract or negligence.
All other warranties, expressed or implied, including but not limited to the implied
warranties of merchantability and fitness for a particular purpose, are hereby excluded.
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4. PRODUCT OVERVIEW AND TECHNICAL DESCRIPTION
4.1 Description
The APC DC Network Solutions Inc. Model MX28B is a modular stand-alone 24V dc power
plant. It is configurable in such a manner that it will support most typical applications within the
current range of 400 amps without special application engineering or assistance. Distribution is
included for up to 24 plug-in circuit breakers. These circuit breakers can be 1 to 100 amps, with
60-100 amp breakers requiring two positions and a circuit breaker adapter kit. An optional low
voltage disconnect (LVD) can be provided on either the battery or the load side. A 400 amp
MX28B is shown in Figure 4.1-1. A block diagram is shown in Figure 4.1–2.
Figure 4.1-1. + 24V dc 400 Amp MX28B
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Figure 4.1-2. MX28B BLOCK DIAGRAM
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4.2 Power Output Capacity
The power supplies a maximum of 400 amps or 300 amps with N+1 redundancy. The housing
for this configuration provides space for one rectifier shelf that can hold up to four rectifiers, a
control unit, and one tier of up to 24 distribution circuit breakers.
4.3 Rectifiers
The rectifiers are APC DC Network Solutions Inc. Model MRF28H27BV with specifications as
follows:
•= Input Voltage:
176-264V ac (230V ac nominal) @ 45-66 Hz
•= Input Current per Rectifier:
13.9 Amps @ 230V ac
•= Apparent Power Factor:
99% Typical, 98% Minimum
•= Output Voltage:
27.2 V dc
•= Over-voltage Protection:
Set at 31.5 V dc
•= Output Current per Rectifier:
100A Maximum, Continuous
•= Power Output per Rectifier:
2800W Continuous, Vin > 198V ac
•= Efficiency:
89% Typical
•= Cooling:
Fan cooled, front to rear airflow
•= Ambient Temperature:
-25°C to 65°C Operational
4.4 Control Unit
The microprocessor-based power system control unit is 1U high (1.75”) and provides control
and monitoring functions. Features implemented are:
•= 32-character alphanumeric display
•= LED alarm and status indicators
•= Standard voltage and battery charging control
•= Battery temperature compensation (optional)
•= Monitoring of up to two shelves of four rectifiers each
•= Individual alarm monitoring of 24 breakers
•= Eight alarm / annunciation relays (Major, Minor, and six user defined) with form C contact
outputs
•= Four external alarm inputs (either N.O. or N.C. contacts)
•= Control of either a battery or a load LVD
4.5 AC Input Power
Each rectifier requires 208/220/240V ac, single-phase, 50/60 Hz, supplied through an external
20-amp two-pole breaker. A rear located enclosure, with two holes for customer-supplied oneinch conduit entry, provides a terminal strip(s) for ac input power connection and a separate
“Earth Ground” bar for connection of the safety ground wire(s).
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4.6 Battery connections
Top entry battery connections are made at the top rear of the unit (see Figure 4.6-1). The
voltage and return buses each provide two sets of threaded 3/8”-16 holes on one-inch centers for
connecting two-hole battery cable lugs.
A battery disconnect breaker is required external to this equipment. The power plant can
monitor auxiliary contacts from this breaker.
Battery temperature compensation is available. APC’s standard temperature monitor sensor and
cable is used to implement this optional function.
Figure 4.6-1. Battery Cable Connection Locations
4.7 DC Distribution
A standard 24-position plug-in circuit breaker tier provides power distribution. The breaker tier
is connected at its center to the dc distribution bus, and each side has an ampacity of 300A.
Connections for 27V dc loads, requiring standard #10-32 two-hole lugs on 5/8-inch centers, are
located directly above the corresponding breaker. The load returns connect to the return bus,
which accommodates 24 two-hole #10-32 lugs on 5/8-inch centers, and four two-hole ¼”-20
lugs on ¾-inch centers. The return bus also provides a pair of threaded 3/8”-16 holes on 1-inch
centers for connection of a cable to the master station ground. Figure 4.7-1 shows the power
plant’s dc distribution section with the front cover removed.
Eight GMT fused outputs are also available as an option. This option uses one of the 24
available circuit breaker positions.
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Figure 4.7-1. DC Distribution (Front Cover Removed)
4.8 Mounting
Both front mounting on standard 2-inch rails and optional wall mounting are available.
4.9 Environmental
•= Ambient Temperature: -40°C to +65°C operating
-40°C to +85°C storage
•= Humidity: 0% to 85% RH non-condensing operating
0% to 95% RH non-condensing storage
•= Altitude: Up to 3000m, operating
Up to 10,000m, storage
4.10 Mechanical
•= Dimensions:
15.75” high x 23” wide x 17.5” deep (400 amp unit)
•= Weight: Housing - 85 lbs. (400A)
Rectifier - 11 lbs.
•= Color: Dawn Gray (fronts)
4.11 Compliance
•= UL 1950
•= Bellcore GR-63-CORE Sections 4.1.3 Altitude; 4.2 Shelf Level Fire Resistance; 4.3 Use
of Fire Resistant Materials; 4.5 Airborne Contaminants; 4.6 Acoustic Noise.
•= FCC Part 15, Class A (Pending)
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5. INSTALLATION PROCEDURES
5.1 Preparation
5.1.1 Recommended Tools
•= Standard selection of insulated hand tools.
•= Proper tools for crimping the selected cable lugs.
5.1.2 Recommended Test Equipment
•= Digital Multimeter
5.1.3 Equipment Inspection
Remove equipment from packing material and inspect for shipping damage to verify the safety
and operational suitability for the installation site. [Refer to Section 1.3]
5.1.4 Safety Precautions
***** WARNING *****
The MX28B dc power plant is supplied from a nominal 220V ac, 60 Hz source. Keep the ac
input enclosure cover in place when the system is operational or energized.
***** CAUTION *****
Handling or touching the controller boards located inside this unit without being electro
statically discharged (grounded to the frame) may cause extensive damage to the
electronics. Before touching or handling the controller boards, it is recommended that
an ESD wrist strap be utilized.
***** WARNING *****
Hazardous energy levels are present on bare conductors in the -48V dc distribution
connection area of the plant. Accidental shorting of distribution conductors can cause
arcing and high currents that can cause serious burns or other physical harm.
It is recommended that:
•= Any jewelry, rings or watches be removed while working on this equipment.
•= Handles of all wrenches, screwdrivers, cutters and pliers be insulated.
•= Shafts of screwdrivers be wrapped in electrical tape or otherwise insulated.
5.1.5 Room/Locations
NOTE: The APC DC Network Solutions Inc. Model MX28B dc power plant is to be
installed in a room, vault, or similar enclosure that is accessible only to qualified
persons in accordance with the NEC or the authority having jurisdiction.
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Prior to installation, drawings, floor loading requirements, external alarm points, ac service
entrance, and grounding schemes should all be checked and confirmed. If batteries are to be
mounted in a room separate from the power plant, careful attention should be paid to battery
cable voltage drop effects. Environmental operating temperatures and ventilation/cooling
considerations should also be noted, not just for the power system but for all other equipment
that may reside in the power room area.
5.1.6 Mounting
Both front mounting on standard 23-inch rails and optional wall mounting are available.
5.1.7 Ventilation
The rectifiers have fans that provide front to rear airflow for internal cooling. The MX28B
housing should mounted such that there is free airflow to the front, top, and bottom of the unit.
[Refer to Section 4.9 for environmental characteristics.]
5.2 AC Service and Ground Connections
***** WARNING *****
Ensure that all of the dc and external ac circuit breakers are in the OFF position prior to
connecting service to the power plant. Confirm that all voltages have been removed
including any battery sources before proceeding.
The MX28B dc power plant requires the supply of 208/220/240V ac, single-phase, 50/60 Hz
power through individual external 20-amp two-pole circuit breakers to the ac input terminal
block connections for each rectifier in the system. (The ac wiring, from the ac input terminal
block connections to the hot-pluggable ac input connector for each rectifier, is factory installed.)
The ac input enclosure, located at the top right rear of the MX28B housing, is provided with two
one-inch conduit entry holes and an access cover. Inside, a terminal strip(s) for ac input power
connection and a separate “Earth Ground” bar for connection of the safety ground wire(s) are
provided. The terminal block(s) is labeled as Position 1 through Position 4 (Position 1 through
Position 8 for the 400-amp unit) with each position having inputs designated “L1” and “L2” for
connection of the two ac wires. Positions 1-4 correspond to the top rectifier shelf positions from
left to right. Positions 5-8 are applicable to the 400-amp unit only and correspond to the lower
rectifier shelf positions from left to right.
The suggested wire size is #10 AWG rated at 90°C or higher; however, the ambient temperature
and number of wires in a conduit must also be considered in accordance with NEC
requirements. It is suggested that feeds for four rectifiers (8 wires) and one safety ground wire
be run in a one-inch conduit; however, be sure to follow any local electrical wiring codes.
If the ac input power is provided from a three-phase distribution panel, the circuit breaker
positions should be selected such that the load is balanced as much as possible.
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5.3 Battery Connections
5.3.1 Battery Disconnect
An external circuit breaker (not supplied) is required in the negative line (located at the battery
end) to protect the cables from the battery to the MX28B dc power plant. The power plant can
monitor auxiliary contacts from this breaker.
5.3.2 Cable Sizing Considerations
The battery cable(s) should be sized sufficiently large to limit the voltage drop from the MX28B
dc power plant to the battery during charging per system design requirements. The cable(s)
must also carry the full load current during battery operation. If assistance is required to
determine the necessary cables for the application, contact your sales representative or APC DC
Network Solutions Inc..
5.3.3 Connecting the Cables
The battery cable connections are located at the top rear of the unit as shown in Figure 4.6-1.
The battery positive (+24V bus) and battery negative (Return bus) buses each provide two sets
of threaded 3/8”-16 holes on one-inch centers for connecting two-hole battery cable lugs.
Connect the battery cables as applicable using 3/8”-16 bolts (not provided) and tighten them
with a torque wrench to 200 in-lbs.
***** CAUTION *****
Make certain that the battery polarity is correct when making connections to the Model
MX28B dc power plant. Incorrect connection could cause severe equipment damage.
5.4 DC SYSTEM GROUNDING
THE NEGATIVE BATTERY CONNECTION (RETURN BUS) FOR THE POWER
PLANT MUST BE CONNECTED TO THE MASTER STATION GROUND. THE LEFT
END OF THE RETURN BUS PROVIDES A PAIR OF THREADED 3/8”-16 HOLES ON
1-INCH CENTERS FOR CONNECTION OF A TWO-HOLE LUGGED CABLE TO THE
MASTER STATION GROUND. DETAILS FOR THIS CONNECTION SHOULD BE
PROVIDED IN THE SITE ELECTRICAL GROUNDING PLAN.
5.5 Rectifier Installation
The APC DC Network Solutions Inc. Model MRF28H27BV rectifiers are shipped in separate
containers. Follow the procedure below to install a rectifier.
1) Remove the rectifier from its shipping container.
2) Remove the rectifier retaining screw from the shelf position where the rectifier is to be
installed.
3) Slide the rectifier into the shelf between the guides until it is fully seated.
4) Fasten the rectifier in place with the rectifier retaining screw.
Since all adjustments are made from the system control unit, no rectifier adjustments are
necessary.
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5.6 Alarm Connections
The alarm connections for all rectifiers, breakers, and fuses are factory pre-wired. The MX28B
dc power plant, however, permits the user to program the system alarms in various ways.
5.6.1 External Alarm Inputs
Four external alarm inputs with assignable priority levels are available. These alarm inputs
respond to external dry contact closures between normally open (NO) and common (C) or
contact openings between normally closed (NC) and C (see Table 5.6-1).
External Alarm Source
(non-alarm state)
Connect To Input
Alarm Terminals
OPEN
CLOSED
NO-C
NC-C
Table 5.6-1. External Alarm Input Definition
Table 5.6-2 shows the external alarm input connection designations. Connector J4 is located on
the interface card mounted in the top left side of the unit. Systems are shipped with jumper
wires connecting each NC and corresponding C contact. A jumper wire should be removed only
if the corresponding NC-C contacts are going to be used.
EXTERNAL
ALARM
INPUT
J4 TERMINAL
DESIGNATION
(NO-NC-C)
USER ALARM NOTES
#1
#2
#3
#4
NO1-NC1-C1
NO2-NC2-C2
NO3-NC3-C3
NO4-NC4-C4
___________________________
___________________________
___________________________
___________________________
Table 5.6-2. External Alarm Input Connections
5.6.2 Alarm Outputs
There are eight alarms available that provide outputs via Form “C” relay contacts. The last two
of these are pre-assigned as the Minor and Major alarm outputs. The Major relay is energized
(NO-C contacts closed) during normal (non-alarm) operating conditions; all the other relays
energize when an alarm condition occurs. The other six outputs are initially designated as
“Relay 1” through “Relay 6” (the user may assign more meaningful names if desired). The
various system alarm conditions can be assigned to any of the eight alarm outputs.
Table 5.6-3 shows the alarm output connection designations. Connectors J1 and J2 are located
on the interface card mounted in the top left side of the unit. The relay contacts should only be
used to switch resistive loads of 0.5 amperes or less at 60 volts or less.
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ALARM
OUTPUT
TERMINAL
DESIGNATION
NO-NC-C
USER ALARM NOTES
J1
RELAY #1
RELAY #2
RELAY #3
RELAY #4
NO1-NC1-C1
NO2-NC2-C2
NO3-NC3-C3
NO4-NC4-C4
________________________
________________________
________________________
________________________
J2
RELAY #5
RELAY #6
MINOR
MAJOR
NO5-NC5-C5
NO6-NC6-C6
NO7-NC7-C7
NO8-NC8-C8
________________________
________________________
________________________
________________________
Table 5.6-3. Alarm Output Connections
5.7 Connecting The Loads
5.7.1 DC Circuit Breakers and Fuses
Both plug-in circuit breakers and GMT fuses can be installed in the MX28B power plant for dc
distribution circuit protection. Available plug-in circuit breakers are shown in Table 5.7-1.
Plug-in circuit breakers rated at 60A or more require two mounting positions and require a
breaker adapter kit, which is included (see kit selection information below the table). The
breaker adapter kit includes all necessary mounting hardware.
*
BREAKER
RATING
PART NUMBER
BREAKER
RATING
PART NUMBER
1A
FFA-0014
40 A
FFA-0020
3A
FFA-0015
50 A
FFA-0025
5A
FFA-0016
60 A
FFA-0021-X *
10 A
FFA-0017
70 A
FFA-0022-X *
15 A
FFA-0028
80 A
FFA-0023-X *
20 A
FFA-0018
100 A
FFA-0024-X *
30 A
FFA-0019
-1: adapter has #10 studs on 5/8” centers for two-hole cable lug
-2: adapter has #10 studs on ¾” centers for two-hole cable lug
-3: adapter has ¼” studs on 1” centers for two-hole cable lug
Table 5.7-1. Plug-in Circuit Breakers
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MX28B-400 +24V Product Manual
A list of GMT type fuses available from APC DC Network Solutions Inc. is provided in Table
5.7-2.
FUSE RATING
PART NUMBER
1/4 A
FFA-0030
1/2 A
FFA-0031
3/4 A
FFA-0032
1A
FFA-0033
1¼ A
FFA-0039
1½ A
FFA-0035
3A
FFA-0036
5A
FFA-0037
10 A
FFA-0038
Table 5.7-2. GMT Fuses
5.7.2 Installation of Circuit Breakers and Fuses
5.7.2.1 Plug-in Circuit Breakers
1) Remove the circuit breaker cover panel and the plastic cover(s) from the desired
location(s).
2) Install the circuit breaker(s) by snapping the top terminal onto the upper bus bar and
rotating the unit down until the second terminal snaps onto the breaker termination
post as shown in Figure 5.7-1. The breaker alarm terminals are designed to make
contact with the alarm terminal board as the breaker is snapped into place.
NOTE: Circuit breaker alarm contacts close when the circuit breaker is tripped
but not when it is turned OFF.
***** CAUTION *****
During circuit breaker installation, carefully align the breaker alarm terminals with the alarm
terminal board to avoid breaker terminal damage.
3) Reattach the circuit breaker cover panel.
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Figure 5.7-1. Installation of Circuit Breakers
5.7.2.2 GMT Fuses
Fuseholders that accommodate GMT fuses are located on the interface card mounted in the top
left side of the unit. These fuseholders are only connected to +24V dc if the system has been
purchased with the GMT fuse option. This option supplies +24V dc to the fuseholders through a
50 A. circuit breaker located in circuit breaker Position 1. The interface card provides
fuseholders for eight fuses, labeled “F1” through “F8”, which can be used for small +24V dc
loads. The maximum fuse size that should be used is 10A.
5.7.3 Load Connections
5.7.3.1 Circuit Breakers
Connections for +24V dc loads require standard two-hole lugs for #10 screws on 5/8” centers
and are located directly above the corresponding circuit breaker. The load returns connect to the
return bus located just above and rearward of the breaker connection points as seen in Figure
5.7-1. The return bus provides 24 sets of threaded #10-32 holes on 5/8” centers and four sets of
threaded ¼”-20 holes on ¾” centers for connection of two-hole lugs on load return wires.
5.7.3.2 GMT Fuses
Connections to the GMT fuses are made at terminal block connectors labeled “F1” through “F8”
that are located on the interface card mounted in the top left side of the unit. Each connector has
two positions, labeled “V-” and “V+”, for connection of the dc load and load return wires.
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5.8 Battery Temperature Probe Installation
The optional temperature probe is used to monitor the battery string temperature. To get the
most representative temperature measurement, the probe should be placed in contact with a
battery cell that is centrally located. The probe should be placed directly in contact with the cell
(not the frame surrounding the cell). Generally, the cell cover can be used; be careful not to
allow the probe body to touch the terminals.
1) Plug the connector end of the temperature probe into J5 the control unit backplane card.
2) Route the cable as required to position the probe on the selected battery cell
3) Remove the adhesive protection strip from the probe body and press the adhesive side of
the probe on the battery cell cover.
5.9 Power-Up and Checkout
Before initiating power-up and checkout, ensure that the following conditions exist:
1) Make sure that the external circuit breaker protecting the cables from the battery to
the power plant is turned OFF (the battery cables should be connected to the power
plant, but the battery should not be connected).
2) Make sure that all load circuit breakers are turned OFF (including the one feeding the
GMT fuses if the unit has the GMT fuse option).
3) Verify that all rectifiers have been installed.
5.9.1 Apply AC Power
Turn on the circuit breakers that supply ac power to the rectifiers in the MX28B dc power plant.
The main screen should appear on the control unit display (see Figure 5.9-1). The display on the
control unit is a 2-lines by 16-characters display. The cursor cycles below the characters of the
active selection on the display. Information shown in the second line of Figure 5.9-1 that
extends beyond 16 characters (to the right of the “S” in “ALARMS”) can viewed on the control
unit display by using the scrolling controls (refer to Section 6 for operation of the control unit).
NOTE: When ac power is initially applied, there is a 60-second period during which no alarms
are reported.
MX28B
+
STATUS ALARMS SYSTEM MODULES BATT PIN OEM
Figure 5.9-1
5.9.2 System Parameters Verification/Adjustment
The MX28B system control unit is delivered with pre-programmed parameter default settings.
A complete listing and description of all system configuration parameters as well as displayable
system status and information is provided in Section 6. Read Section 6 to gain an understanding
of and how to use the operational features provided by the MX28B dc power plant. As a
minimum, the following parameters should be verified and adjusted, if required, before
connecting batteries or loads to the power plant:
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1) Battery Float Voltage - default = -27.00V dc (Check the manufacturer’s
recommendation for the batteries being used in the system.)
2) Battery Maximum Recharge Rate - default = 100A. (Bellcore specifications
recommend a maximum charging rate of capacity (in Ampere-hours) divided by 20
hours; check the manufacturer’s recommendation.)
3) System Voltage - measurement ≅ -27.00V dc (This is a measurement by the system of
the dc output bus voltage.)
4) LVD Option - default = “Enable” (If the MX28B does not have an LVD installed, this
should be changed to “Disable”.)
5) Rectifier Information - Check the rectifier information displays to verify that all
rectifiers installed can be viewed on the control unit display and that no rectifier alarms
are active.
Section 6 provides location information for these parameters and how to make changes if
required.
5.9.3 Full System Power Up
To complete a full system power up, perform the following steps
1) Turn OFF all the circuit breakers that supply ac power to the rectifiers in the MX28B dc
power plant.
2) Turn on the external circuit breaker from the battery to the power plant.
3) Turn on all the circuit breakers that supply ac power to the rectifiers in the MX28B dc
power plant.
4) Load circuit breakers may now be turned on as required.
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6. SETUP, ADJUSTMENTS, AND OPERATION
6.1 User Interface
The MX28B control unit provides a user interface designed with a hierarchical menu that can be
viewed on the 32-character display by “navigating” with the “ ” (left), “ ” (right), “ ” (up),
and “ ” (down) arrow keys located on the front panel. The selected item on the display is
identified by the cursor cycling beneath its characters.
The “M” (modify) key and the arrow keys are used to set parameters and text to customize the
system operation for a specific application. Items that can be modified have "m+" in the upper
right corner of the display. (If a security level higher than the one presently set is required to
modify the parameter, "s+" is displayed instead of “m+”.) Status, alarms, and information
screens have "+" in the upper right corner of the display (or “#” in the case of rectifier
information screens) and can not be modified. When ac power is initially applied, there is a 60second period during which no alarms are reported.
Pressing the "M" key on the front panel will change the "m+" to "M+", indicating that the
parameter can now be changed using the arrow keys. Some parameters can be changed to other
predefined selections by pressing the up or down arrow keys to display an alternative selection.
These parameters can be recognized after the “M” key is pressed by the cursor cycling beneath
the characters of the selection. For other parameters, such as text and most numeric values, after
the “M” key is pressed the cursor will be displayed under an individual character. The right or
left arrow key is used to position the cursor below the character to be changed and the up or
down arrow key is used to "spin" the digit or letter to the desired value. When the desired
changes have been made to an individual parameter screen, the “M” key is pressed again; the
“M+” changes back to “m+” and the new entry is stored in memory.
If the user plans to make any changes to system parameters, the first item that should be verified
or entered is the appropriate password for the security level required for the parameters to be
modified. Security level 2 enables modification of all variable system parameters, level 1
permits modification of some parameters; no security is required for viewing status items. The
security level password is entered through the “PIN” screen. If no front panel keys are pressed
for 60 minutes, the active password reverts to “0000” and “█APC█” begins to move about the
display. Pressing any key returns the display to normal; the password must be re-entered if
system parameters require changes.
Eleven LEDs are provided on the front panel of the control unit to indicate system status. Three
LEDs grouped together vertically provide overall system status; they are “MAJOR”, “MINOR”,
and “NORMAL”, indicating the presence of a major alarm, a minor alarm, or normal operation.
The other eight LEDs correspond to the active state of each of the alarm output relays and are
labeled “ALM1”∙∙∙“ALM6”, “MIN”, and “MAJ”.
6.2 External Alarm Inputs
The four external alarm inputs (also referred to as “Input Relay Alarms”) can be assigned a
priority and routed or “mapped” to alarm output relays. Available assignments are “Ignore”,
“Major”, “Minor”, and “Relay 1” ∙∙∙ “Relay 6”. Screens for making the assignments are
located at [SYSTEM/IN-RLY/RLY-MAP]. A user defined name or “alias” may also be
assigned to each of these input alarms. Screens for making these assignments are located at
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MX28B-400 +24V Product Manual
[SYSTEM/IN-RLY/ALIAS]. For information on wiring connections to these inputs refer to
Section 5.6.1.
6.3 Alarm Output Relays
There are eight alarm output relays designated Relay 1 through Relay 6, Minor, and Major,
respectively. Various system parameters may be programmed to activate any of these alarm
relays when set thresholds are exceeded or specific conditions occur. The first six relays can
also be assigned a priority and routed or “mapped” to other output alarm relays. Available
assignments are “Ignore”, “Major”, “Minor”, and “Relay 1” ∙∙∙ “Relay 6”. Screens for making
these assignments are located at [SYSTEM/OUT-RLY/RLY-MAP]. This feature makes it
possible for a single alarm condition to activate multiple alarm output relays including the Minor
or Major alarm relay. A user defined name or “alias” may also be assigned to each of the eight
output relay alarms. Screens for making these assignments are located at [SYSTEM/OUTRLY/ALIAS]. For information on making wiring connections to the alarm output relays refer
to Section 5.6.2.
6.4 Parameter Locations, Descriptions, and Default Values
The location, description, and factory programmed default value for each of the MX28B system
parameters is found in Table 6.4-1. The table also shows all of the status and information
screens with typical displays. The location of a parameter screen is shown in brackets, for
example: [SYSTEM/IN-RLY/RLY-MAP]. To find the parameters that can be accessed in this
category, starting from the main menu screen, do the following:
1) Use the right or left arrow keys to position the cycling cursor below “SYSTEM”.
2) Press the down arrow key once.
3) Use the right arrow key to position the cycling cursor below “IN-RLY”.
4) Press the down arrow key once; the cursor will be cycling below “RLY-MAP”.
5) Press the down arrow key (repeatedly if necessary) until the desired parameter screen is
displayed (there are eight parameter screens in this category).
6) After making any desired changes (refer to Section 6.1 for the procedure), to return to the
main menu press the up arrow key repeatedly.
If a parameter requires a level 1 or level 2 security access to permit changes to it, the security
level will be found in braces, i.e. {2}, in the “PARAMETER” column of Table 6.4-1.
The complete menu structure shown in the order in which it is accessed from the control unit
display is presented in outline form in Figure 6.4-1. Each indentation to the right represents a
menu level below the indicated title.
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Table 6.4-1. Parameter Locations, Descriptions, and Default Values
PARAMETER
DESCRIPTION
DISPLAY SCREENS /
DEFAULT SETTINGS
SYSTEM SETUP
Password Entry
PIN Entry
[PIN]
Screen for entry of the active password (PIN).
PIN
m+
0000
Password Setup
Level 1 PIN {2}
[SYSTEM/SETUP]
Password (PIN) that permits security Level 1 parameter
changes - limited access.
PIN 1
Level 2 Password {2}
[SYSTEM/SETUP]
Password (PIN) that permits security Level 2 parameter
changes - unlimited access.
PIN 2
OEM R Offset {2}
[OEM]
Voltage offset adjustment for factory calibration of voltage
readings/settings.
OEM R Offset m+
0.000 V
OEM R Gain {2}
[OEM]
Voltage gain adjustment for factory calibration of voltage
readings/settings.
OEM R Gain
m+
1.000 V
OEM S Offset {2}
[OEM]
Current offset adjustment for factory calibration of battery
current readings/settings.
OEM S Offset m+
0.0 A
OEM S Gain {2}
[OEM]
Current gain adjustment for factory calibration of battery
current readings/settings.
OEM S Gain
m+
1.000 A
Address 1 {1}
[SYSTEM/SETUP]
Power plant address or identification - first line.
Address 1
APC DCNS
Address 2 {1}
[SYSTEM/SETUP]
Power plant address or identification - second line.
Address 2
m+
11035 Switzer Av
Address 3 {1}
[SYSTEM/SETUP]
Power plant address or identification - third line.
Address 3
Dallas, TX.
m+
Model Type {2}
[SYSTEM/SETUP]
Model type number for the MX28B dc power plant
NOTE: Changing the model number causes the system to
reinitialize.
Model
m+
Temperature Scale {1}
[SYSTEM/SETUP]
Enables selection of Fahrenheit or Celsius temperature scale
(Fahrenheit “OFF” displays readings in °C).
Fahrenheit
Control Unit Revision
[SYSTEM/SETUP]
Hardware revision level of the control unit.
Cntrl Rev
+
000002
Firmware Version
[SYSTEM/SETUP]
Version number of the control unit firmware.
NOTE: Actual firmware version number displayed is the
current version as of the date of manufacture.
FW Version
+
000131
m+
1111
m+
2222
OEM Calibration
Site Address/Identification
m+
Control Unit Setup & Info.
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OFF
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MX28B-400 +24V Product Manual
(Table 6.4-1. Parameter Locations, Descriptions, and Default Values)
PARAMETER
Display Type
[SYSTEM/SETUP]
DESCRIPTION
DISPLAY SCREENS /
DEFAULT SETTINGS
Type number for the control unit display.
Display Type
+
000255
Date {1}
[SYSTEM/DATE]
Internal system calendar date.
Date
m+
DEC 16 1999
Time {1}
[SYSTEM/DATE]
Internal system clock time (24-hour format).
Time
Date/Time Setup
m+
9:00:25
Alarm Threshold Setup
High Voltage Threshold {1}
[SYSTEM/SET-ALM]
System High voltage alarm threshold.
Sys HV Thr
m+
28.00 V
Low Voltage Threshold {1}
[SYSTEM/SET-ALM]
System Low voltage alarm threshold.
Sys LV Thr
m+
25.00 V
High Temperature Threshold {1}
[SYSTEM/SET-ALM]
Over temperature alarm threshold.
Sys HT Thr
m+
70.0 C
Low Temperature Threshold {1}
[SYSTEM/SET-ALM]
Under temperature alarm threshold.
Sys LT Thr
m+
0.0 C
System Voltage
[STATUS]
System output voltage measured between the MX28B dc
power plant -48V and return buses.
Sys Voltage
+
27.00 V
System Current
[STATUS]
The total system output current (calculated as the sum of the
individual rectifier output currents).
Sys Current
+
145.8 A
System Temperature
[STATUS]
System temperature measured within the control unit.
Sys Temp
Battery Current
[STATUS]
Battery current measured at the current shunt.
Batt Current
+
-15.0 A
Battery Temperature
[STATUS]
Battery temperature measured by the optional battery
temperature sensor probe.
Batt Temp
System High Voltage {1}
[SYSTEM/SET-ALM]
System voltage is above the high voltage threshold.
Sys HV Alm
m+
Minor
System Low Voltage {1}
[SYSTEM/SET-ALM]
System voltage is below the low-voltage threshold.
Sys LV Alm
m+
Minor
System High Temperature {1}
[SYSTEM/SET-ALM]
The control unit temperature is above the high temperature
threshold.
Sys HT Alm
m+
Minor
System Status
(+) indicates discharge, (-) indicates charge
+
26.7 C
+
25.2 C
System Alarms
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(Table 6.4-1. Parameter Locations, Descriptions, and Default Values)
PARAMETER
DESCRIPTION
DISPLAY SCREENS /
DEFAULT SETTINGS
System Low Temperature {1}
[SYSTEM/SET-ALM]
The control unit temperature is below the low temperature
threshold.
Sys LT Alm
m+
Minor
Rectifier Configuration {1}
[SYSTEM/SET-ALM]
The rectifier configuration differs from its stored
configuration.
Rect Cfg Alm m+
Minor
Rectifier Fail 1-of-N {1}
[SYSTEM/SET-ALM]
Rectifier Fail 1-of-N alarm - one rectifier has at least one
alarm condition.
Rect 1ofN Alm m+
Minor
Rectifier Fail 2-of-N {1}
[SYSTEM/SET-ALM]
Rectifier Fail 2-of-N alarm – two or more rectifiers have at
least one alarm condition each.
Rect 2ofN Alm m+
Major
Hardware System Voltage {2}
[SYSTEM/SET-ALM]
This alarm indicates there is a hardware failure in the system
voltage monitoring function.
Hw Sys V Alm m+
Minor
Hardware Battery Current {2}
[SYSTEM/SET-ALM]
This alarm indicates there is a hardware failure in the battery
current monitoring function.
Hw Batt C Alm m+
Minor
Hardware Battery Temperature {2}
[SYSTEM/SET-ALM]
This alarm indicates there is a hardware failure in the battery
temperature monitoring function.
Hw Batt T Alm m+
Minor
Hardware System Temperature {2}
[SYSTEM/SET-ALM]
This alarm indicates there is a hardware failure in the system
temperature monitoring function.
Hw Sys T Alm m+
Minor
Hardware LVD {2}
[SYSTEM/SET-ALM]
This alarm indicates there is a conflict between the
commanded and sensed positions of the LVD.
Hw LVD Alm
m+
Minor
Display of up to 16 active alarms (a typical alarm screen is
shown).
Alarm Item 1
+
Batt LV Alm On m
SYSTEM ALARMS DISPLAY
Alarms Item 1
[ALARMS]
•
•
•
Alarms Item 16
[ALARMS]
•
•
•
•
•
•
Display of up to 16 active alarms (a typical alarm screen is
shown).
Alarm Item 16
Store Configuration {1}
[SYSTEM/DIAG]
Setting this parameter to “Enable” will cause the current
rectifier configuration to be stored (the display toggles back
to “Disable” after entry).
Store Cfg
m+
Disable
Lamp Test {1}
[SYSTEM/DIAG]
Setting Lamp Test to “ON” will turn on the “MAJOR”,
“MINOR”, “NORMAL”, “MAJ”, and “MIN” LEDs on the
control unit front panel.
Lamp Test
Test Relay Enable {1}
[SYSTEM/DIAG]
This parameter must be set to “Enable” to permit the eight
output relays to be manually tested; otherwise, the state of the
relays will be per system conditions.
Test Relay En m+
Disable
Test Relay 1 {1}
[SYSTEM/DIAG]
Setting this parameter to “ON” energizes Relay 1 and turns
on the “ALM1” LED on the control unit front panel.
Test Relay 1 m+
OFF
+
SYSTEM DIAGNOSTICS
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MX28B-400 +24V Product Manual
(Table 6.4-1. Parameter Locations, Descriptions, and Default Values)
PARAMETER
DESCRIPTION
DISPLAY SCREENS /
DEFAULT SETTINGS
•
•
•
•
•
•
•
•
•
Test Relay 6 {1}
[SYSTEM/DIAG]
Setting this parameter to “ON” energizes Relay 6 and turns
on the “ALM6” LED on the control unit front panel.
Test Relay 6 m+
OFF
Test Minor Relay {1}
[SYSTEM/DIAG]
Setting this parameter to “ON” energizes the Minor Relay
and turns on the “MIN” LED on the control unit front panel.
Test Min Rly m+
OFF
Test Major Relay {1}
[SYSTEM/DIAG]
Setting this parameter to “ON” de-energizes the Major Relay
and turns on the “MAJ” LED on the control unit front panel.
Test Maj Rly m+
OFF
Float Voltage {1}
[BATT/PARAM]
Float voltage at 25°C battery temperature.
Batt Float
m+
27.00 V
Maximum Recharge Current {1}
[BATT/PARAM]
Maximum battery recharge current (the system limits the
charging current to this programmable value).
Batt Max Rech m+
100 A
Compensation Method {1}
[BATT/COMP]
Activate “000001” or de-activate “000000” battery
temperature compensation.
Comp Method
m+
000000
Temperature Compensation {1}
[BATT/COMP]
Temperature compensation between low knee and high knee
in mV/cell/°C. (Compensation equals zero at 25°C.)
Comp TC
Compensation High Knee {1}
[BATT/COMP]
The temperature compensation high knee is the point above
which there is no additional battery voltage compensation for
further increases in temperature.
Comp Hknee
m+
40.0 C
Compensation Low Knee {1}
[BATT/COMP]
The temperature compensation low knee is the point below
which there is no additional battery voltage compensation for
further decreases in temperature.
Comp Lknee
m+
0.0 C
Discharge Threshold {1}
[BATT/SET-ALM]
An alarm is generated if the battery discharge current exceeds
this value.
Batt Disc Thr m+
10 A
High Voltage Threshold {1}
[BATT/SET-ALM]
An alarm is generated if the magnitude of the battery voltage
rises above this value.
Batt HV Thr
m+
28.00 V
Low Voltage Threshold {1}
[BATT/SET-ALM]
An alarm is generated if the magnitude of the battery voltage
drops below this value.
Batt LV Thr
m+
22.00 V
High Temperature Threshold {1}
[BATT/SET-ALM]
An alarm is generated if the battery temperature exceeds this
value.
Batt HT Thr
m+
70.0 C
Low Temperature Threshold {1}
[BATT/SET-ALM]
An alarm is generated if the battery temperature drops below
this value.
Batt LT Thr
An alarm that is generated if the battery discharge current
exceeds the programmed battery discharge threshold.
Batt Disc Alm m+
Minor
BATTERY SETUP
m+
- 3.00mV
m+
0.0 C
Battery Alarms
Discharge Alarm {1}
[BATT/SET-ALM]
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(Table 6.4-1. Parameter Locations, Descriptions, and Default Values)
PARAMETER
DESCRIPTION
DISPLAY SCREENS /
DEFAULT SETTINGS
High Voltage Alarm {1}
[BATT/SET-ALM]
An alarm that is generated if the magnitude of the battery
voltage rises above the high voltage threshold.
Batt HV Alm
m+
Minor
Low Voltage Alarm {1}
[BATT/SET-ALM]
An alarm that is generated if the magnitude of the battery
voltage drops below the low voltage threshold.
Batt LV Alm
m+
Minor
High Temperature Alarm {1}
[BATT/SET-ALM]
An alarm that is generated if the battery temperature exceeds
the high temperature threshold.
Batt HT Alm
m+
Minor
Low Temperature Alarm {1}
[BATT/SET-ALM]
An alarm that is generated if the battery temperature drops
below the low temperature threshold.
Batt LT Alm
m+
Minor
Fail Safe Voltage {1}
[MODULES/RECT/PARAM]
Rectifier default output voltage if communication with the
control unit fails.
Rect Fail Safem+
27.00 V
Communications Timeout {1}
[MODULES/RECT/PARAM]
The maximum rectifier communications response time
allowed before a communications failure is declared.
Rect Fail Commm+
1 min
RECTIFIER SETUP
Rectifier Information
NOTE: This information can be viewed for each rectifier
installed by using the horizontal arrow keys.
Rectifier Description
[MODULES/RECT/INFO]
Displays the model number of the installed rectifier.
Rect 1 Desc
MRF28H27
Rectifier Current
[MODULES/RECT/INFO]
A display of the dc output current for the individual rectifier.
Rect 1 Curr
#
24.9 A
Current Limit Alarm
[MODULES/RECT/INFO]
The status will be “ON” if the rectifier has been forced into
its current limited mode.
Rect 1 CL
Standby Alarm
[MODULES/RECT/INFO]
The status will be “ON” if the control unit is holding the
rectifier in the standby mode.
Rect 1 Stdby
#
OFF
Fan Fail Alarm
[MODULES/RECT/INFO]
The status will be “ON” if the rectifier fan has failed.
Rect 1 FF
Rectifier Fault Alarm (RFA)
[MODULES/RECT/INFO]
The status will be on if the rectifier output has failed.
#
#
OFF
#
OFF
Rect 1 RFA
#
OFF
Rectifier Alarms
Current Limit Alarm {1}
[MODULES/RECT/SET-ALM]
This alarm indicates that a rectifier has been forced into the
current limited mode.
Rect CL Alm
m+
n of N
Standby Alarm {1}
[MODULES/RECT/SET-ALM]
This alarm indicates that the control unit is holding a rectifier
in the standby mode.
Rect Stdby Almm+
n of N
Fan Fail Alarm {1}
[MODULES/RECT/SET-ALM]
This alarm indicates that a rectifier fan has failed.
Rect FF Alm
m+
n of N
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(Table 6.4-1. Parameter Locations, Descriptions, and Default Values)
PARAMETER
RFA Alarm {1}
[MODULES/RECT/SET-ALM]
DESCRIPTION
DISPLAY SCREENS /
DEFAULT SETTINGS
This alarm indicates that a rectifier output has failed.
Rect RFA Alm m+
n of N
An alternate name (alias) that can be assigned to a circuit
breaker if desired.
Cir Bkr 1
+24V
CIRCUIT BREAKER SETUP
Breaker 1 Alias {1}
[MODULES/CIRBKR/ALIAS]
•
•
•
Breaker 24 Alias {1}
[MODULES/CIRBKR/ALIAS]
•
•
•
m+
•
•
•
An alternate name (alias) that can be assigned to a circuit
breaker if desired.
Cir Bkr 72
+24V
An alarm that indicates Circuit Breaker 1 is tripped.
Cir Bkr 1 Alm m+
Major
m+
Circuit Breaker Alarms
Breaker 1 Tripped {1}
[MODULES/CIRBKR/SET-ALM]
•
•
•
Breaker 24 Tripped {1}
[MODULES/CIRBKR/SET-ALM]
•
•
•
•
•
•
An alarm that indicates Circuit Breaker 24 is tripped.
Cir Bkr 24 Almm+
Major
An alternate name (alias) that can be assigned to a GMT Fuse
1 if desired.
FUSE 1
+24V
GMT FUSE SETUP
GMT 1 Alias {1}
[MODULES/GMT/ALIAS]
•
•
•
GMT 8 Alias {1}
[MODULES/GMT/ALIAS]
+
•
•
•
•
•
•
An alternate name (alias) that can be assigned to a GMT Fuse
8 if desired.
FUSE 16
+24V
An alarm that indicates GMT Fuse 1 is blown.
FUSE 1 Alm
m+
Major
+
GMT Fuse Alarms
GMT 1 Blown {1}
[MODULES/GMT/SET-ALM]
•
•
•
GMT 8 Blown {1}
[MODULES/GMT/SET-ALM]
32
•
•
•
An alarm that indicates GMT Fuse 8 is blown.
•
•
•
FUSE 16 Alm
m+
Major
990-9218
MX28B-400 +24V Product Manual
(Table 6.4-1. Parameter Locations, Descriptions, and Default Values)
PARAMETER
DESCRIPTION
DISPLAY SCREENS /
DEFAULT SETTINGS
INPUT RELAY SETUP
Input Relay 1 Alias {1}
[SYSTEM/IN-RLY/ALIAS]
•
•
•
Input Relay 4 Alias {1}
[SYSTEM/IN-RLY/ALIAS]
An alternate name (alias) can be assigned to the relay if
desired.
•
•
•
In-Rly 1
m+
Input Relay 1
•
•
•
An alternate name (alias) can be assigned to the relay if
desired.
In-Rly 4
m+
Input Relay 4
An alarm activated in response to an external contact closure
or opening at the Input Relay 1 connection.
In-Rly 1 Alm m+
Ignore
•
•
•
•
•
•
An alarm activated in response to an external contact closure
or opening at the Input Relay 4 connection.
In-Rly 4 Alm m+
Ignore
An alternate name (alias) can be assigned to the relay if
desired.
Out-Rly 1
Relay 1
Input Relay Alarms
Input Relay 1 {1}
[SYSTEM/IN-RLY/RLY-MAP]
•
•
•
Input Relay 4 {1}
[SYSTEM/IN-RLY/RLY-MAP]
OUTPUT RELAY SETUP
Output Relay 1 Alias {1}
[SYSTEM/OUT-RLY/ALIAS]
•
•
•
•
•
•
m+
•
•
•
Output Relay 6 Alias {1}
[SYSTEM/OUT-RLY/ALIAS]
An alternate name (alias) can be assigned to the relay if
desired.
Out-Rly 6
Relay 6
m+
Output Relay Minor Alias {1}
[SYSTEM/OUT-RLY/ALIAS]
An alternate name (alias) can be assigned to the relay if
desired.
Relay Minor
Minor
m+
Output Relay Major Alias {1}
[SYSTEM/OUT-RLY/ALIAS]
An alternate name (alias) can be assigned to the relay if
desired.
Relay Major
Major
m+
Output Relay 1 Delay {1}
[SYSTEM/OUT-RLY/RLY-MAP]
Delay between sensing of the alarm condition and activation
of the alarm relay. An alarm condition must exist for longer
than the delay to be activated.
Out-Rly 1 Dly m+
0 sec
•
•
•
Output Relay 6 Delay {1}
[SYSTEM/OUT-RLY/RLY-MAP]
990-9218
•
•
•
Delay between sensing of the alarm condition and activation
of the alarm relay. An alarm condition must exist for longer
than the delay to be activated.
•
•
•
Out-Rly 6 Dly m+
0 sec
33
MX28B-400 +24V Product Manual
(Table 6.4-1. Parameter Locations, Descriptions, and Default Values)
PARAMETER
DESCRIPTION
DISPLAY SCREENS /
DEFAULT SETTINGS
Output Relay Alarms
Output Relay 1 {1}
[SYSTEM/OUT-RLY/RLY-MAP]
•
•
•
Output Relay 6 {1}
[SYSTEM/OUT-RLY/RLY-MAP]
Output Relay 1 alarm can be “mapped” to activate other
output relays (“Ignore” activates no additional relays).
Out-Rly 1 Alm m+
Ignore
•
•
•
•
•
•
Output Relay 6 alarm can be “mapped” to activate other
output relays (“Ignore” activates no additional relays).
Out-Rly 6 Alm m+
Ignore
LVD1 Trip {1}
[MODULES/LVD/PARAM]
LVD trip (disconnect) threshold voltage.
LVD1 Trip
LVD1 Restore {1}
[MODULES/LVD/PARAM]
LVD restore (reconnect) threshold voltage.
LVD1 Reset
m+
24.00 V
LVD1 Option {1}
[MODULES/LVD/SET-ALM]
Set to “Enable” if the unit has an LVD.
LVD1
LVD2 Trip {1}
[MODULES/LVD/PARAM]
LVD trip (disconnect) threshold voltage.
LVD2 Trip
LVD2 Restore {1}
[MODULES/LVD/PARAM]
LVD restore (reconnect) threshold voltage.
LVD2 Reset
m+
24.00 V
LVD2 Option {1}
[MODULES/LVD/SET-ALM]
Set to “Enable” if the unit has an LVD.
LVD2
LVD1 Alarm {1}
[MODULES/LVD/SET-ALM]
Sets the priority or “mapping” of an LVD Alarm.
LVD1 Open Alm m+
Minor
LVD2 Alarm {1}
[MODULES/LVD/SET-ALM]
Sets the priority or “mapping” of an LVD Alarm.
LVD2 Open Alm m+
Minor
LVD SETUP
m+
21.00 V
Option m+
Enable
m+
21.00 V
Option m+
Enable
LVD Alarm
34
990-9218
MX28B-400 +24V Product Manual
Figure 6.4-1. Control Unit Menu Structure
MX28B
+
STATUS
Sys Voltage
Sys Current
Sys Temp
Batt Current
Batt Temp
ALARMS
Alarm Item 1
Alarm Item 2
Alarm Item 3
Alarm Item 4
Alarm Item 5
Alarm Item 6
Alarm Item 7
Alarm Item 8
Alarm Item 9
Alarm Item 10
Alarm Item 11
Alarm Item 12
Alarm Item 13
Alarm Item 14
Alarm Item 15
Alarm Item 16
SYSTEM
SET-ALM
Sys HV Thr
Sys HV Alm
Sys LV Thr
Sys LV Alm
Rect Cfg Alm
Rect 1ofN Alm
Rect 2ofN Alm
Sys HT Thr
Sys HT Alm
Sys LT Thr
Sys LT Alm
Hw Sys V Alm
Hw Batt C Alm
Hw Batt T Alm
Hw Sys T Alm
Hw LVD1 Alm
Hw LVD2 Alm
SETUP
PIN 1
PIN 2
Address 1
990-9218
35
MX28B-400 +24V Product Manual
(Figure 6.4-1. Control Unit Menu Structure)
Address 2
Address 3
Model
Fahrenheit
Cntrl Rev
FW Version
Display Type
DATE
Date
Time
OUT-RLY
RLY-MAP
Out-Rly 1 Alm
Out-Rly 2 Alm
Out-Rly 3 Alm
Out-Rly 4 Alm
Out-Rly 5 Alm
Out-Rly 6 Alm
Out-Rly 1 Dly
Out-Rly 2 Dly
Out-Rly 3 Dly
Out-Rly 4 Dly
Out-Rly 5 Dly
Out-Rly 6 Dly
ALIAS
Out-Rly 1
Out-Rly 2
Out-Rly 3
Out-Rly 4
Out-Rly 5
Out-Rly 6
Relay Minor
Relay Major
IN-RLY
RLY-MAP
In-Rly 1 Alm
In-Rly 2 Alm
In-Rly 3 Alm
In-Rly 4 Alm
ALIAS
In-Rly 1
In-Rly 2
In-Rly 3
In-Rly 4
DIAG
Store Cfg
Lamp Test
Test Relay En
36
990-9218
MX28B-400 +24V Product Manual
(Figure 6.4-1. Control Unit Menu Structure)
Test
Test
Test
Test
Test
Test
Test
Test
Relay 1
Relay 2
Relay 3
Relay 4
Relay 5
Relay 6
Min Rly
Maj Rly
MODULES
RECT
SET-ALM
Rect CL Alm
Rect Stdby Alm
Rect FF Alm
Rect RFA Alm
PARAM
Rect Fail Safe
Rect Fail Comm
INFO
Rect # Desc
Rect # Curr
Rect # CL
Rect # Stdby
Rect # FF
Rect # RFA
CIRBKR
SET-ALM
Cir Bkr 1 Alm
Cir Bkr 2 Alm
Cir Bkr 3 Alm
•
•
•
Cir Bkr 70 Alm
Cir Bkr 71 Alm
Cir Bkr 72 Alm
ALIAS
Cir Bkr 1
Cir Bkr 2
Cir Bkr 3
•
•
•
Cir Bkr 70
Cir Bkr 71
Cir Bkr 72
990-9218
37
MX28B-400 +24V Product Manual
(Figure 6.4-1. Control Unit Menu Structure)
FUSE
SET-ALM
FUSE 1 Alm
FUSE 2 Alm
•
•
•
FUSE 15 Alm
FUSE 16 Alm
ALIAS
FUSE 1
FUSE 2
•
•
•
FUSE 15
FUSE 16
LVD
SET-ALM
LVD1
LVD1
LVD2
LVD2
PARAM
LVD1
LVD1
LVD2
LVD2
Option
Open Alm
Option
Open Alm
Trip
Reset
Trip
Reset
BATT
SET-ALM
Batt
Batt
Batt
Batt
Batt
Batt
Batt
Batt
Batt
Batt
PARAM
Batt
Batt
38
Disc Thr
Disc Alm
HV Thr
HV Alm
LV Thr
LV Alm
HT Thr
HT Alm
LT Thr
LT Alm
Float
Max Rech
990-9218
MX28B-400 +24V Product Manual
(Figure 6.4-1. Control Unit Menu Structure)
COMP
Comp
Comp
Comp
Comp
Method
TC
HKnee
LKnee
PIN
PIN
OEM
OEM
OEM
OEM
OEM
990-9218
R
R
S
S
Offset
Gain
Offset
Gain
39
MX28B-400 +24V Product Manual
40
990-9218