SBS AT10.1 SERIES Training manual

Operating and Service Instructions
AT10.1SERIES
MICROPROCESSOR-CONTROLLED
FLOAT BATTERY CHARGER
SINGLE PHASE INPUT
GROUP II
(30 -100 Adc OUTPUT)
Address: N56 W16665 Ridgewood Drive
Menomonee Falls, WI 53051
Tel: [phone]
Fax: [phone]
Online: www.sbsbattery.com

HOW TO READ THE AT10.1 MODEL NUMBER
GROUP II RATINGS (30-100 Adc)
Your AT10.1 model number is coded to describe the options that are included. Please find the model
number on the data nameplate and write it in the spaces provided below. Then follow the chart to
determine the configuration of your battery charger.
AT10
ABCDEFGHJKLMNP
DESCRIPTION CODE FEATURE DESCRIPTION CODE FEATURE
ASERIES AT10 AT10.1 CHARGER SSTANDARD
012 12 Vdc MMEDIUM AIC
024 24 Vdc HHIGH AIC
048 48 Vdc
F
AC CIRCUIT
BREAKER
RATING
(SEE TABLE) 0NO AC BREAKER
BNOMINAL
DC OUTPUT
VOLTAGE 130 130 Vdc FSUPPLIED
030 30 Adc GAC FUSES
(200 kAIC) XNOT SUPPLIED
040 40 Adc SSTANDARD
050 50 Adc MMEDIUM AIC
075 75 Adc HHIGH AIC
CNOMINAL
DC OUTPUT
CURRENT
100 100 Adc
H
DC CIRCUIT
BREAKER
RATING
(SEE TABLE) 0NO DC BREAKER
FSUPPLIED
UUNFILTERED JDC FUSES
(20 kAIC) XNOT SUPPLIED
FFILTERED ASUPPLIED
DFILTERING EELIMINATOR KAUX ALARM
RELAY BOARD XNOT SUPPLIED
GSUPPLIED
120 120 Vac 60 Hz LGROUND PAD XNOT SUPPLIED
208 208 Vac 60 Hz LSUPPLIED
240 240 Vac 60 Hz MLIGHTNING
ARRESTOR XNOT SUPPLIED
480 480 Vac 60 Hz FAPPLIED
220 220 Vac 50/60 Hz NFUNGUS
PROOFING XNOT APPLIED
380 380 Vac 50/60 Hz SAPPLIED
EAC INPUT
VOLTAGE
416 416 Vac 50/60 Hz PSTATIC
PROOFING XNOT APPLIED
DESCRIPTION CODE FEATURE DESCRIPTION CODE FEATURE
INPUT AND OUTPUT INTERRUPTING CAPACITY RATINGS
ORDER
CODE
CIRCUIT
BREAKER
TYPE
AC CIRCUIT
BREAKER RATINGS
(208/240/480 Vac) *
DC CIRCUIT
BREAKER RATINGS
(125/250 Vdc)
OPTIONAL AC
FUSE RATING
(208-600 Vac)
OPTIONAL DC
FUSE RATING
(12/24/48/130 Vdc)
SSTANDARD 5,000 AIC 5,000 AIC
MMEDIUM AIC 25,000 AIC 10,000 AIC 200,000 AIC 20,000 AIC
HHIGH AIC 65,000 AIC 25,000 AIC
* Contact your sales representative for 500-600 Vac circuit breaker AIC ratings.
NOTE:
The model number listed on the charger data nameplate does not include any field-installed
options. Also, certain accessories are not included in the model number, even if they are shipped with the
charger. Check off below any accessories that were included, or that you install yourself.
floor/wall/rack mounting brackets
zero-center ground detection meter w/test switch
NEMA-2 type drip shield end of discharge alarm relay
NEMA-4/12/13 type enclosure battery discharge alarm relay
cabinet heater strips barrier type auxiliary alarm terminal block
pad/key lock for front panel door external temperature compensation probe
analog ac voltmeter DNP3 Level 2 / Modbus communications module
analog ac ammeter forced load sharing module
Please find the serial number on the
data nameplate and record it here:

IMPORTANT SAFETY INSTRUCTIONS
i
PLEASE READ AND FOLLOW
ALL SAFETY INSTRUCTIONS
1. Before using this equipment, read all instructions and cautionary
markings on: A) this equipment, B) battery, and C) any other equipment
to be used in conjunction with this equipment.
2. This manual contains important safety and operating instructions, and
therefore should be filed for easy access.
3. Remove all jewelry, watches, rings, etc. before proceeding with
installation or service.
4. Do not touch any uninsulated parts of this equipment, especially the
input and output connections, as there is the possibility of electrical
shock.
5. During normal operation, batteries may produce explosive gas. Never
smoke, use an open flame, or create arcs in the vicinity of this equipment
or the battery.
6. Maintain at least 6in / 152mm clearance from all obstructions on the top,
bottom and sides of this equipment. Allow sufficient clearance to open
the front panel for servicing.
7. Turn this equipment off before connecting or disconnecting the battery
to avoid a shock hazard and/or equipment damage.
8. Connect or disconnect the battery only when the battery charger is off to
prevent arcing or burning.
9. De-energize all ac and dc inputs to the battery charger before servicing.
10. Do not operate battery charger if it has been damaged in any way. Refer
to qualified service personnel.
11. Do not disassemble battery charger. Only qualified service personnel
should attempt repairs. Incorrect reassembly may result in explosion,
electrical shock, or fire.
12. Do not install the battery charger outdoors, or in wet or damp locations
unless specifically ordered for that environment.
PLEASE READ AND FOLLOW
ALL SAFETY INSTRUCTIONS

TABLE OF CONTENTS
ii
QUICK OPERATION ..................................................................................................Back Cover
HOW TO READ THE AT10.1 MODEL NUMBER..........................................Inside Front Cover
IMPORTANT SAFETY INSTRUCTIONS ......................................................................................i
1Receiving and Installing the AT10.1 Battery Charger
1.1 Storing the AT10.1 .................................................................................................2
1.2 Reporting shipping damage ...................................................................................2
1.3 Unpacking and inspecting the AT10.1 ...................................................................2
Inspection checklist................................................................................................2
1.4 Moving the AT10.1.................................................................................................3
Enclosure type and weight table............................................................................3
1.5 Mounting the AT10.1..............................................................................................3
1.5.1 Wall-Mounting the AT10.1 ...............................................................................4
1.5.2 Floor-Mounting the AT10.1..............................................................................6
1.5.3 Rack-Mounting the AT10.1 (optional)..............................................................8
1.6 Changing transformer taps...................................................................................10
1.7 Making the ac input connections..........................................................................12
1.8 Making the dc output connections........................................................................14
1.9 Wiring the AT10.1 for remote sensing..................................................................16
1.10 Wiring to the remote alarm contacts ....................................................................18
Auxiliary Relay Board (optional)...........................................................................19
1.11 Installing the temperature compensation probe (optional)...................................20
Using temperature compensation........................................................................22
1.12 Installing the AT10.1 for remote communications (optional)................................23
1.13 Installing the AT10.1 for forced load sharing (optional) .......................................23
2Operating the AT10.1 Battery Charger
2.1 Starting the AT10.1
2.1.1 Understanding the start-up sequence............................................................24
2.1.2 Checking the installation................................................................................24
2.1.3 Starting the AT10.1........................................................................................24
Using the digital meter...................................................................................24
Factory settings table.....................................................................................25
2.2 Using the AT10.1 front panel features
2.2.1 If the meter displays an error message .........................................................26
2.2.2 Selecting the meter mode..............................................................................26
2.2.3 Selecting the Float or Equalize mode............................................................27
2.2.4 Choosing the Equalize method......................................................................27
Manual Timer method....................................................................................27
Manual Equalize method...............................................................................28
Auto-Equalize Timer method.........................................................................28
2.2.5 Testing the front panel indicators...................................................................29
2.2.6 Testing the Auxiliary Relay Board (optional) .................................................29
2.2.7 Interpreting the alarm indicators....................................................................29

TABLE OF CONTENTS
iii
2.3 Setting the AT10.1 parameters
2.3.1 Understanding parameter settings.................................................................30
2.3.2 Setting the Float and Equalize voltages.........................................................31
2.3.3 Setting the Equalize timer..............................................................................32
2.3.4 Setting the Alarms..........................................................................................32
Setting the high and low dc voltage alarms ...................................................33
Adjusting ground detection sensitivity............................................................34
Disabling the ground detection alarm ............................................................35
2.3.5 Setting the current limit value.........................................................................35
2.3.6 Enabling the high dc voltage shutdown feature.............................................36
2.3.7 Adjusting the Voltmeter accuracy ..................................................................37
2.3.8 Using the Low Level Detector (LLD)..............................................................38
2.3.9 Using the front panel security feature............................................................39
2.4 Performing routine maintenance ..........................................................................40
Sample preventive maintenance procedure.........................................................42
3Servicing the AT10.1 Battery Charger
3.1 A step-by-step troubleshooting procedure ...........................................................44
3.2 Interpreting front panel error messages ...............................................................45
3.3 Using the troubleshooting chart............................................................................48
3.4 Troubleshooting chart begins on..........................................................................49
3.5 Replacing defective components..........................................................................58
3.6 Ordering replacement parts..................................................................................62
Replacement parts tables (begin on)....................................................................62
APPENDIX A: AT10.1 Performance Specifications................................................................70
APPENDIX B: Field Installable Accessories...........................................................................71
APPENDIX C: Standard Drawings *
AT10.1 Series Battery Charger Outline: NEMA-1 Style-5017 Enclosure.....................................72
AT10.1 Series Battery Charger Outline: NEMA-1 Style-5018 Enclosure.....................................74
AT10.1 Series Battery Charger Internal Component Layout: Style-5017 Enclosure....................76
AT10.1 Series Battery Charger Internal Component Layout: Style-5018 Enclosure....................78
AT10.1 Series Battery Charger Instrument Panel / PC Board Detail...........................................80
Schematic -AT10.1 Group II Battery Charger -Standard w/o Options........................................82
Schematic -AT10.1 Group II Battery Charger -with Common Options.......................................84
Connection Diagram -AT10.1 Group II Battery Charger -Standard w/o Options........................86
Connection Diagram -AT10.1 Group II Battery Charger -with Common Options.......................88
Wire List -AT10.1 Group II Battery Charger................................................................................90
APPENDIX D: Recommended Float / Equalize Voltages.......................................................92
APPENDIX E: DNP3 Level 2 / Modbus Communications Module.........................................93
MANUAL SPECIFICATIONS (document control information / online availability) .....................94
* Note: A customized record drawing package is available for your AT10.1, featuring an itemized
internal component layout, electrical schematic with component ratings, and a full connection diagram.
If the standard drawings and wire list featured in this manual are not sufficient, please contact your Sales
Representative for drawing availability from the battery charger manufacturer.

RECEIVING THE AT10.1
2
1. RECEIVING THE AT10.1
1.1. STORING THE AT10.1
If you store the AT10.1 for more than a few days before installation, you
should store it in its original shipping container, and in a temperature
controlled, dry climate. Ambient temperatures of 32 to 122° F / 0 to 50° C
are acceptable. Storage should not exceed 2 years due to the limited shelf
life of the dc filter capacitors when they are not in service.
1.2. REPORTING SHIPPING DAMAGE
If, on delivery of the AT10.1 or related goods, you discover any damage
or shortage, make notation on all copies of delivering carrier's delivery
receipt before signing, and notify the delivery person of your findings. If
loss or damage is discovered after delivery, notify delivering carrier
immediately and request an inspection. The manufacturer does not assume
any liability for damage during transportation or handling.
Should the goods require an inspection by or return to the manufacturer,
please contact your sales representative for further instructions. Any
returned material must be properly packed in compliance with shipping
regulations. It is preferable to use the original shipping materials if
possible. Mark the outside of the shipping container with the Return
Material Authorization (RMA) number issued by the manufacturer.
1.3. UNPACKING AND INSPECTING THE AT10.1
Carefully remove all shipping materials from the AT10.1. Remove the
AT10.1 from the shipping pallet for inspection. Save all shipping
materials until you are sure that there is no shipping damage.
Once the AT10.1 is unpacked, inspect the unit for possible shipping
damage, using the checklist below. If shipping damage has occurred,
please refer to Section 1.2 on this page for proper reporting.
INSPECTION CHECKLIST
oEnclosure exterior and interior are not marred or dented.
oThere is no visible damage to exterior or interior components.
oAll internal components are secure.
oPrinted circuit boards are firmly seated on their standoffs.
oAll hardware is tight.
oAll wire terminations are secure.
oThe User's Manual is included.
oYou received all items on the packing list.

INSTALLING THE AT10.1
3
1.4. MOVING THE AT10.1
Once you have established that the AT10.1 is undamaged, identify the
enclosure style and weight of your unit. Refer to the table below.
AT10.1 Enclosure Type And Shipping Weight Table
Group II Cabinets (Style-5017 / Style-5018)
Ampere Rating
Output
Voltage 30 Adc 40 Adc 50 Adc 75 Adc 100 Adc
12 Vdc
Style-5017
140 lbs
63 kg
Style-5017
155 lbs
70 kg
Style-5017
170 lbs
77 kg
Style-5018
220 lbs
100 kg
Style-5018
280 lbs
127 kg
24 Vdc
Style-5017
150 lbs
68 kg
Style-5017
180 lbs
82 kg
Style-5017
190 lbs
86 kg
Style-5018
250 lbs
113 kg
Style-5018
320 lbs
145 kg
48 Vdc
Style-5017
170 lbs
77 kg
Style-5017
220 lbs
100 kg
Style-5017
240 lbs
109 kg
Style-5018
340 lbs
154 kg
Style-5018
440 lbs
200 kg
130 Vdc
Style-5017
220 lbs
100 kg
Style-5018
300 lbs
136 kg
Style-5018
320 lbs
145 kg
Style-5018
440 lbs
200 kg n/a
NOTE: Actual unit is approximately 20 lbs / 9kg below listed shipping weight in table.
The Style-5017 & 5018 enclosures do not feature lifting eyes for
moving. Instead, whenever possible move the unit with a forklift truck
using the supplied shipping pallet. To hoist the unit into a wall-mount or
rack-mount location, use a heavy-duty sling applicable to the enclosure
size and unit weight. To relocate the Style-5017 enclosure, use the
aforementioned sling on a hoist or forklift truck. To relocate the Style-
5018 enclosure, use a forklift truck by lifting the unit through the 3in /
76mm gap located between the mounting legs.
1.5. MOUNTING THE AT10.1
Chose the mounting method for the unit enclosure from the table below.
ENCLOSURE
MANUAL
SECTION
MOUNTING METHOD Style-5017 Style-5018
1.5.1 Wall-Mounting STANDARD OPTIONAL
1.5.2 Floor-Mounting OPTIONAL STANDARD
19in / 483mm Rack-Mounting OPTIONAL N/A
1.5.3 23-24in / 584-610mm
Rack-Mounting OPTIONAL OPTIONAL

INSTALLING THE AT10.1
4
1.5.1. Wall-Mounting the AT10.1
In planning for wall mounting of the AT10.1 consider the following:
1. Wall-mounting the Style-5017 enclosure is standard. If you are wall-
mounting a charger in the Style-5018 enclosure, you need the wall mounting
bracket kit (part number EI5008-00). For kit availability see ordering
information in Appendix B on page 71. The kit includes dimensions and
instructions for locating the wall mounting holes.
2. The wall must be strong enough to properly support the weight of the
AT10.1. The weight of your AT10.1 may be different from the table value,
depending on options or accessories you ordered. See the Weight Table
located in Section 1.4 on page 3.
3. Placement of conduit entrances. Note the standard pre-fab conduit
knockouts located on the sides of the charger. See outline drawings in
Appendix C.
4. The location:
• Should be free of drips and splatter. If dripping liquids are a problem,
install a drip shield kit. For kit availability see ordering information in
Appendix B on page 71.
• Should be between 32 and 122 °F / 0 and 50 °C, with relative humidity
between 5 and 95% non-condensing.
• Must be free of flammable or explosive materials.
5. Maintain at least 6in / 152mm of free air on top, bottom and both sides for
cooling air.
6. Allow 36in / 914mm front clearance for access to the charger for operation
and maintenance.

INSTALLING THE AT10.1
5
PROCEDURE
To wall-mount the AT10.1, install
eight (8) 0.25in / 6.4mm bolts onto
the wall, rated to support the
AT10.1 weight plus a safety factor
of at least 2 times. Place the
AT10.1 on the bolts, add
appropriate mounting hardware,
and tighten securely. See the
diagram below for the Style-5017
enclosure footprint and wall-
mounting pattern. Dimensions are
in/mm.
Style-5017 Enclosure

INSTALLING THE AT10.1
6
1.5.2. Floor-Mounting the AT10.1
To floor mount the AT10.1, you must consider the following:
1. Floor-mounting the Style-5018 enclosure is standard. If you are floor
mounting a charger in the Style-5017 enclosure you will need the floor-
mount kit (part number EI0192-00). For kit availability see ordering
information in Appendix B on page 71. The kit contains brackets that elevate
the top of the AT10.1 approximately 47in / 1194mm above floor level, with
provisions for floor anchoring. The kit includes dimensions and instructions
for locating the floor mounting holes.
2. Placement of conduit entrances. Note the standard pre-fab conduit
knockouts located on the sides of the charger. See outline drawings in
Appendix C.
3. The location:
• Should be free of drips and splatter. If dripping liquids are a problem,
install a drip shield. See ordering information in Appendix B on page 71.
• Should be between 32 and 122 °F / 0 and 50 °C, with relative humidity
between 5 and 95% non-condensing.
• Must be free of flammable or explosive materials.
4. Maintain at least 6in / 152mm of free air on top, bottom and both sides for
cooling air.
5. Allow 36in / 914mm front clearance for access to the charger for operation
and maintenance.

INSTALLING THE AT10.1
7
PROCEDURE
To floor-mount the AT10.1, install
four (4) 0.25in / 6.4mm bolts into
the floor. Place the AT10.1 on the
bolts, add appropriate mounting
hardware, and tighten securely. See
the diagram below for the Style-
5018 enclosure footprint and floor-
mounting pattern. Dimensions are
in/mm.
Style-5018 Enclosure

INSTALLING THE AT10.1
8
1.5.3. Rack-Mounting the AT10.1
All ratings of the AT10.1 can be installed in most relay racks with
standard EIA hole spacing. A relay rack-mounting kit is required. For kit
availability see ordering information in Appendix B on page 71. Order the
appropriate rack mounting kit for your charger, as shown in the following
table.
RACK WIDTH
CHARGER RATING
Voltage Current
19in /
483mm 23-24in / 584-610mm
12 Vdc 30-50 Adc EI0193-01 EI0193-02
12 Vdc 75-100 Adc N/A EI0193-03
24 Vdc 30-50 Adc EI0193-01 EI0193-02
24 Vdc 75-100 Adc N/A EI0193-03
48 Vdc 30-40 Adc EI0193-01 EI0193-02
48 Vdc 50-100 Adc N/A EI0193-03
130 Vdc 30 Adc EI0193-01 EI0193-02
130 Vdc 40-75 Adc N/A EI0193-03
MOUNTING KIT
Each kit includes mounting brackets, hardware and the necessary
instructions to install one AT10.1 battery charger. The kit also includes
dimensions and detailed instructions for rack-mounting.
When rack mounting the AT10.1, you must consider the following:
1. The rack must be strong enough to properly support the weight of the
AT10.1. See the Weight Table located in Section 1.4 on page 3.
2. Placement of conduit entrances (be sure the knockouts on the sides or
bottom of the charger are accessible after the charger is rack mounted).
3. The location:
• Should be between 32-122° F / 0-50° C, with relative humidity between
5 and 95% non-condensing.
• Must be free of flammable or explosive materials.
4. Maintain at least 6in / 152mm of free air on top, bottom and both sides for
cooling air.
5. Allow 36in / 914mm front clearance for access to the charger for operation
and maintenance.

INSTALLING THE AT10.1
9
PROCEDURE
To rack mount the AT10.1, first install the brackets into the rack using the
supplied hardware. Second, install the AT10.1 onto the brackets. Tighten all
hardware securely. Provide at least 6in / 152mm of free air space above and
below the AT10.1 enclosure in the rack for cooling. You do not need to
modify the AT10.1 enclosures for standard rack-mounting. See the diagrams
below for the Group II enclosure rack-mounting configurations.
Style-5017 Rack-Mounting
Style-5018 Rack-Mounting
NOTES:
1. Units are installed from the front.
2. Refer to the outline drawings in Appedix C for enclosure dimensions.

INSTALLING THE AT10.1
10
1.6. CHANGING TRANSFORMER TAPS
IMPORTANT: The AT10.1 Group II Battery Chargers (rated 30 Adc
through 100 Adc) are designed for a single ac supply voltage. If
your ac supply voltage does not match the AT10.1 ac input
requirements (note the data nameplate and the tag attached to the
front panel), you MUST change the ac input circuit breaker and/or
fuses, and the input surge suppressors. In addition, you must
replace or rewire the transformer as described below. Failure to use
the properly rated components may damage the charger.
NOTE: If your AT10.1 Group II Battery Charger was ordered with 480
Vac -60Hz input or 220 Vac -50/60 Hz input, the transformer accepts
only the listed voltage. Do not attempt to rewire these transformers. If a
different ac input voltage is desired for the AT10.1, please contact your
sales representative for ordering replacement parts.
Before you wire ac power to the AT10.1, check the wiring of the main
transformer T1, to be sure it is connected for the desired ac input voltage.
The main transformer was wired at the factory for the input voltage
specified and listed on the data nameplate.
If your Group II AT10.1 was ordered with 120, 208 or 240 Vac -60Hz
input and you need to change the factory-wired input voltage, you do so
by changing jumpers on T1. If you are changing from 120 Vac to 208/240
Vac, or the reverse, you also need to change the input surge suppressors
and the input circuit breaker and/or fuses. See Section 3.6 on page 62 for
part requirements.
If your Group II AT10.1 was ordered with 380 or 416 Vac -50/60 Hz and
you need to change the factory-wired input voltage, please consult the
factory for special instructions.
NOTE: Before starting work, disconnect and lock out all external ac and
dc power sources to the AT10.1. Note that just turning off the front panel
ac and dc circuit breakers is not sufficient to eliminate live voltages
inside the enclosure. Use a voltmeter at the ac terminals TB1-L1 and
TB1-L2, the dc terminals TB1(+) and TB1(-), the dc remote sense
terminals, and any external wiring to alarm relay contacts to verify that
no voltage is present inside the enclosure.
Verify that all voltages within the enclosure are de-energized and locked
out. See Section 3.5 for necessary steps to follow when accessing internal
components within the AT10.1. Change the jumpers on T1 as shown in
the table on the following page. If your transformer is supplied with two
(2) jumpers, always use both as specified in the table.

INSTALLING THE AT10.1
11
POWER TRANSFORMER (T1) CONNECTION TABLE
120/208/240 Vac -60Hz 480 Vac -60 Hz
INPUT JUMPERS INPUT JUMPERS
120 Vac -60 Hz H1-H3, H2-H5
208 Vac -60 Hz H2-H4 (2) JUMPERS 480 Vac -60 Hz NONE
240 Vac -60 Hz H2-H3 (2) JUMPERS
PROCEDURE
1. Make sure all voltages are de-energized and locked out.
2. Always use both jumpers in case the taps are changed later.
3. Be sure all connections are tight.
4. Check your work before reenergizing the charger.
5. For more information, see the schematics & wiring diagrams in Appendix C.

INSTALLING THE AT10.1
12
1.7. MAKING THE AC INPUT CONNECTIONS
Follow these steps to connect ac power to the AT10.1:
1. Use a branch circuit breaker or fused disconnect switch, properly sized for
the maximum input current of the AT10.1, as shown in the table below. This
device should have lockout capability so that the ac input can be de-
energized and locked out for maintenance. A time delay circuit breaker or
slow-blow fuse is recommended.
NOTE: If your charger is wired for 480 Vac input, and is equipped with the
standard AIC ac circuit breaker (no ac fuses), you need a feeder breaker or
fuse rated to interrupt the short-circuit current of your ac supply.
2. Size the ac input wiring per the National Electric Code (NEC) and local
codes for the rating of the branch circuit breaker or fused disconnect switch.
3. Be sure the AT10.1 main transformer (T1) is properly connected for your ac
input voltage. See Section 1.6 for details.
4. Do not run external ac and dc power wiring, feeding the battery charger,
through the same conduit.
5. All specific requirements of your facility take precedence over these
instructions.
PROCEDURE
1. Remove the safety cover.
2. Run the ac wiring to terminals TB1-L1, TB1-L2 and TB1-GND on the I/O
panel in the enclosure. Compression lugs, accepting wire sizes #14-1/0
AWG, are supplied for your convenience. To make these connections, strip
the insulation 0.5in / 12.7mm on the incoming wires and connect the wires
to the appropriate lugs as shown on the next page.
3. Using a flat-head screwdriver, securely tighten the compression screws on
the lugs to 35-50 in-lb / 4.0-5.7 Nm.
4. Reinstall the safety cover after you have made and checked all connections.
Example (shaded):
A 130 Vdc/40 Adc
battery charger draws
71 Aac at 120 Vac.
All currents shown
are ±10%.
MAXIMUM INPUT CURRENT AT 120 Vac1
OUTPUT VOLTAGE
OUTPUT
CURRENT 12 24 48 130
30 7.2 13 23 54
40 9.6 17 30 71
50 12 21 38 89
75 18 32 57 Note 1
100 24 42 75 n/a
Note 1: Not available with 120 Vac input. Input current is 67 Aac at 240 Vac.
1To determine the input current, Iac, for other input voltages, use the formula:
ac
Tac V
II 120 ×=
where Vac is the new input voltage, and ITis the input current from the table above.

INSTALLING THE AT10.1
13
MAKING THE AC INPUT CONNECTIONS -GRAPHICS
NOTES:
1. The drawing above does not show other components mounted to the I/O
panel. Be careful not to disconect any other component leads.
2. Always use a proper ground.
3. Use copper or aluminum conductors only.
4. On 120 Vac input, connect the neutral leg to the terminal L2.

INSTALLING THE AT10.1
14
1.8. MAKING THE DC OUTPUT CONNECTIONS
Follow these steps to connect the battery to the AT10.1:
1. Size the dc wiring to minimize voltage drop. The acceptable wire size
depends on your installation. As a guideline, the voltage drop should not
exceed 1% of nominal output voltage at full current. Refer to the table below
to determine the voltage drops for various wire sizes, currents and distances.
WIRE SIZING CHART
VOLTAGE DROP PER 100ft / 30.5m OF WIRE (for copper at 68° F / 20° C)
DC CURRENT (AMPERES)
WIRE SIZE
(AWG) 30 40 50 75 100
#10 3.0V 4.0V 5.0V not recommended not recommended
#8 1.9V 2.5V 3.1V not recommended not recommended
#6 1.2V 1.6V 2.0V 3.0V not recommended
#4 0.7V 1.0V 1.2V 1.9V 2.5V
#2 0.5V 0.5V 0.8V 1.2V 1.6V
#0 0.3V 0.4V 0.5V 0.7V 1.0V
EXAMPLE: 100ft / 30.5m of #8 AWG wire at 50A has a 3.1 Volt drop.
2. The AT10.1 is factory wired to regulate the output voltage at the output
terminals. If the total voltage drop is greater than 1% (e.g., 1.3V for a 130
Vdc system), remote sense wiring is recommended, see Section 1.9.
3. Do not run external ac and dc power wiring, feeding the battery charger,
through the same conduit.
4. All specific requirements of your facility take precedence over these
instructions.
PROCEDURE
1. Use a dc disconnect switch or circuit breaker between the AT10.1 and dc
bus. This device should have lockout capability to allow the AT10.1 to be
disconnected from the dc bus for maintenance.
2. Remove the safety cover.
3. Run the dc wiring to terminals TB1(+) and TB1(-) on the I/O panel in the
enclosure. Compression lugs, accepting wire sizes #14-1/0 AWG, are
supplied for your convenience. To make these connections, strip the
insulation 0.5in / 12.7mm on the incoming wires. Connect the wires to the
appropriate lugs as shown on the next page.
4. Using a flat-head screwdriver, securely tighten the compression screws on
the lugs to 35-50 in-lb / 4.0-5.7 Nm.
5. Reinstall the safety cover after you have made and checked all connections.

INSTALLING THE AT10.1
15
MAKING THE DC OUTPUT CONNECTIONS -GRAPHICS
NOTES:
1. The drawing above does not show other components mounted to the I/O
panel. Be careful not to disconect any other component leads.
2. Always use a proper ground.
3. Use copper or aluminum conductors only.

INSTALLING THE AT10.1
16
1.9. WIRING THE AT10.1 FOR REMOTE SENSING
You can wire the AT10.1 to regulate the output voltage at the battery
terminals, instead of at the charger output terminals. Remote sensing does
the following:
1. Compensates for voltage drop in the dc wiring between the AT10.1 and the
battery.
2. Directly monitors the battery or dc bus voltage. The front panel meter
displays the actual voltage on the dc bus.
You wire the AT10.1 for remote sensing by installing twisted pair cabling
from the AT10.1 remote sense terminals to the battery terminals. The
AT10.1 control circuitry then measures the dc voltage at the battery
terminals, and controls the output of the charger to maintain the battery
voltage at the desired float or equalize voltage.
NOTE: If the remote sense wiring fails, the AT10.1 detects the fault,
and displays E 06 on the front panel meter. See Section 3.2 for details.
CAUTION: The AT10.1 cannot protect against short circuits in the
remote sense wiring. You should install a 1.0A fuse at the battery or dc
bus end of the remote sense cable.
SCHEMATIC
PROCEDURE
1. De-energize and lock out all ac and dc voltages within the AT10.1 enclosure.
Check with a voltmeter.
2. Remove safety shield.
3. Remove the two (2) dc output CU-AL compression lugs.
4. Move wire # 36 from TB1(-) to REM SENSE(-).
5. Move wire # 38 from TB1(+) to REM SENSE (+).