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La Marche Manufacturing Company www.lamarchemfg.com A98S Utility Switchmode Rectifier Installation and Operation Manual This manual is subject to change without notice. You may obtain the newest version of the manual at www.lamarchemfg.com 106 Bradrock Dr. Des Plaines, IL 60018-1967 CPN 151651...
Important Safety Instructions Before using this equipment, read all manuals and other documents related to this unit and other equipment connected to this unit. Always have a copy of the unit’s manual on file nearby in a safe place; if a replacement copy of a manual is needed, it can be found at www.lamarchemfg.com.
Unit Location • Allow at least 6 inches of free air on all vented surfaces for proper cooling • Allow enough clearance to open the front panel for servicing. • Do not operate this unit in a closed-in area or restrict ventilation in any way. •...
(45–66 Hz). Understanding the Model Number The A98S model number is coded to describe the options that are included. Find the model number on the nomenclature nameplate of the system. Follow the chart to determine the configuration of your DC rectifier system.
1.1 Storing the A98S If the A98S is to be stored for more than a few days after delivery, it should be stored within its shipping container. The location chosen for storage should be within an ambient temperature of -40 to 185°F (-40 to 85°C) with a non-condensing relative humidity of 0 to 95%.
Wall-Mount Procedure To wall-mount the A98S, install four 0.25 in. (6.4 mm.) bolts on the wall rated to support the charger weight, plus a safety factor of at least two times. Place the A98S on the bolts, add appropriate mounting hardware, and tighten securely.
Figure 3 – Two Shelves Enclosure Wall Bolt Pattern 2.1.2 Floor-Mounting the A98 (All Enclosures) Floor-Mounting Procedure To floor-mount the A98, install four to six bolts into the floor. Place the charger on the bolts, add appropriate mounting hardware onto the floor-mounting anchor bolts, and tighten securely. Refer to Figure 4 for floor- mounting dimensions.
Rack-Mounting the A98 The A98S can be installed in most 23” relay racks with standard EIA hole spacing. If a relay rack is needed, they are available for purchase from La Marche Mfg. Before installing the charger on the rack, locate the placement of the conduit entrances and be sure the knockouts/gland plates on the charger are accessible after the charger is rack mounted.
2.2 Electrical Connections 2.2.1 AC Input Cable Connections Before beginning any work inside the charger, ensure the following: • Verify all incoming AC supply is de-energized and that both of the charger’s breakers are off. • Verify that no voltage is present inside the case by using a voltmeter at all input and output terminals. •...
Figure 7A & 7B – Input & Output Connections 2.2.3 Alarm Connections The rectifier system provides multiple terminals inside the A98S to interface with the controller, such as monitoring user-assigned alarms and external equipment via dry and wet contacts respectively. See Figure 8 below for reference.
Controller Panel Connections When wiring, land cables into the corresponding terminals as shown on Figure 8 Above. Refer to table 4 below for default contact assignments and contact logic. Connection Pinout (Logic) Description Name TS-1 Alarmed when AC input voltage exceeded AC AC Fail Pin 1 (C) voltage alarm threshold...
Important Note for 130V Systems Only Once all required rectifier modules are inserted into the A98S power shelf and the system is powered ON, be sure each rectifier module is numbered appropriately. To check the module number, scroll through the little LDC display located on the physical module.
HMI 7” Touchscreen Display Menus The A98S HMI is equipped with multiple settings and test menus. Access menus by pressing the icons on the front panel. Navigate by pressing each screen tab at the top. While changing a setting, the SAVE button saves the setting.
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In the Main Menu, the user can review status information, as well as access and change various parameters used by the A98S. The main page is divided into 3 parts: Header The header is further divided into 4 components as explained below with functions:...
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Log Window Pressing the LOG icon will open the data logging window, as shown below. The Event Log icon allows the user to view the occurring events. The data log will store the following information in the occurrence of an event: •...
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Abnormal state when rectifier is removed or communication lost between system and module. Communication Icon The Communication Icon shows the communication status of the HMI display with the A98S, it has 2 indications: Charger Status The Status allows the user to see if the charger is running properly.
Alarm Window The Alarm window allows the user to view the alarms currently active in the A98S. To view the alarms, press the Alarms tab and a list of the active alarms will be shown. The scroll bar may be used to view the list of alarms if it exceeds the window area.
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LED Status Window In the LED Status tab, the green LED means normal conditions. The red LED means the charger has present alarm(s). See Alarm tab to see a description of the alarm. LED Status Name Color Description AC ON Green Normal operation Red/Off...
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Low Output Voltage § User Navigation Window The User Navigation window is divided into 5 tabs: Home, Monitoring, Configuration, Test, and Support. The User Navigation window also displays the status of the A98S in terms of the source and the power flow.
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Home Tab The Home window displays the charger’s AC Input Voltage, DC Bus Voltage, and the DC Load Current. The Float and Equalize modes are also conveniently placed on the Home screen for easy access. When Equalize mode is activated, a preset timer will appear and begin counting down. Once finished, mode will return to Float.
Monitoring Tab The Monitoring tab allows the user to view important parameters of the A98S. These parameters are broadly divided into 3 sections: Utility Section Monitors the AC Input Voltage and AC Frequency from the utility source DC Output Section...
Configuration Tab The Configuration tab contains all the user settings for A98S. The Configuration section of the A98S is password protected. Once the Configuration tab is pressed, the password dialog box will appear as shown below and will request the password to gain access. The default password is 888888 and is customizable through the Configuration tab.
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DI-DO, Equalize Timer, ADJ, BAT Information, BAT Management, and Download Setting System Settings The System Settings section contains the user settings of A98S. The System Settings has the following subsections: System Details, Battery, Security, and Log Window. Each section has a respective pop-up when pressed.
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7-Digit XXXX-X System Serial Number (displaying Numeric String purposes) Rectifier Total Amps Total current of one rectifier in use Current *No. of Rectifier Enter the total number of rectifiers Modules modules in use *Refer to section 3.1 A98S Rectifier Module...
Battery Press the Battery icon on the Configuration tab and the below pop-up will appear. It contains Battery settings as listed and explained in the table below. Be sure to press SAVE button after adjusting settings and before exiting the menu. Parameter Unit Default Value...
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Log Window Allows user to enable or disable the logging feature as well as change the logging period in minutes. The logging period records data at the set interval. Be sure to press SAVE button after adjusting settings and before exiting the menu.
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Communication Settings Allows user to access and monitor settings remotely. Language Default language is English.
Alarm Settings The Alarm Settings section includes all the configurable alarm settings. The Alarm Settings has the following subsections: Output Alarm, Included in Summary, and Latch Alarm. Each section has a respective pop-up when pressed. Output Alarm Allows user to adjust alarm thresholds. The table below provides break down of the alarms. Be sure to press SAVE button after adjusting settings and before exiting the menu.
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Parameter Unit Default Value High Output Volt Volts Low Output Volt Volts Low Output Current Amps Equipment Over Temp. ℃ End of Discharge Volts Battery Over Temp. ℃ **Electrolyte Level Disabled **Hydrogen Detect. Disabled AC Overvoltage Volts AC Undervoltage Volts Busses DP Alarm Value Volts BAT Cell Max Voltage...
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Included in Summary The Include in Summary alarm section gives the setting of alarms to be added to the summary alarm (i.e. one of the relay alarms is Summary Alarm). If any of the selected alarms in this section are set to “yes”, that alarm with be included in the Summary alarm.
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Latch Alarm The Latch Alarm is an alarm that remains active after being triggered, requiring manual intervention to reset or deactivate it. Once the alarm is triggered, it "latches" to remember that it was activated and continues to alarm until someone clears the latched alarm. If an alarm is not set to latch, then it will deactivate once the trigger is clear.
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DI-DO DI-DO is for factory use only. Equalize Timer Allows user to preset Equalize timer values. Set the Equalize Time to the desired number of hours (2-72 Hrs). Set the Auto Equalize Every value to the desired number of days (2-30 days) Auto Equalize will occur. The Auto Equalize feature will automatically equalize the charger for the specified number of days and hours.
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ADJ is for factory use only and is password protected. BAT Information BAT Information is for factory use only.
Battery Management The Battery Management section is password protected. To enter the password, be sure (1) “Maintain” is highlighted and (2) press the “User password” text box. An (3) on-screen keyboard will appear to type the password. Once the password is typed, press the (4) “Ok” button on the on-screen keyboard.
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Parameter Unit Default Value Max BAT Chg Curren Amps 80.0 Max BAT Discharge Current Amps 80.0 BAT Cell Max Volta Volts 15.00 BAT Cell Min Volta Volts 10.00 MAX BAT Pack VOL Volts 150.0 MIN BAT Group VOL Volts 105.0 T/C Upper Limit ℃...
The section below BAT Management chart is for factory use only and the buttons should not be changed. Buttons in CC Section: • Float Charge icon puts the charger in Float mode • Equal Chare icon puts the charter in Equalize mode •...
Test Tab The Test tab is for Factory use only. Support Tab Includes La Marche’s office phone number, service support email and website. The “Log On” icon allows the user to access certain settings and is password protected. To enter, it requires the same process as the Configuration tab.
Before working inside the A98S, ensure the AC power is off at the main breaker box and the battery has been removed from the system’s DC output terminals, either by removing the battery cables or exercising the battery disconnect.
4.3 Troubleshooting Chart Isolate from all power sources prior to performing any interior verifications or part replacements. Symptom Possible Cause & Action AC Failure Rectifier Module Fan Fails Contact La Marche Service Department for further troubleshooting instructions. Rectifier Module Not Responding Check if the temperature around the system is too high.
La Marche Sales Representative should be contacted to provide this service. All sales are final. Only standard LaMarche units will be considered for return. A 25% restocking fee is charged when return is factory authorized. Special units are not returnable.
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