NexSys+ Battery Charger User Manual
Brand: EnerSys
This document provides essential information for the safe operation and proper use of NexSys+ battery chargers. It includes global system specifications, safety measures, operating procedures, and maintenance guidelines.
Table of Contents
Introduction
The information in this document is critical for the safe operation and proper use of NexSys+ chargers. It covers global system specifications, related safety measures, handling rules, and guidelines for implementation and recommended maintenance. This document must be properly stored and accessible to users working with and responsible for the charger. All users are responsible for ensuring that all system applications are appropriate and safe based on the conditions encountered during use.
This user manual contains important safety instructions. Before proceeding with the installation, operation, or use of the battery charger, read all instructions thoroughly. Failure to follow instructions may result in serious personal injury, death, property damage, charger damage, and/or voiding of the warranty.
This user manual does not replace any required training on operation or materials concerning the operation of the vehicle, battery, or NexSys+ charger, as may be required by local regulations and/or industry standards. Ensure all users are properly trained and instructed before operating the battery charger system.
For service, contact your sales representative or call:
- EnerSys EMEA
EH Europe GmbH
Baarerstrasse 18
6300 Zug, Switzerland
Tel.: +41 44 215 74 10 - EnerSys APAC
No. 85, Tuas Avenue 1
Singapore 639518
+65 6558 7333
Your safety and the safety of others are very important.
WARNING: Failure to follow instructions may result in death or serious injury.
Features
- Microprocessor control.
- Automatic battery capacity determination.
- State of Charge (SoC) adjustment.
- Battery voltage compatibility:
- 1-Phase: 12 V, 24 V, 36/48 V
- 3-Phase: 24/36/48 V, 72/80 V, 96 V, 120 V
- Wireless connection with Wi-iQ® battery monitoring devices.
- Recognition of battery sets and automatic pairing with the charger.
- Unique charging profile for Thin Plate Pure Lead (TPPL) batteries.
- Specific charging profiles for NexSys® batteries: NXBLOC; NXSTND; NXSFAST; NXP2V; NXPBLC; ATP2V.
- Remote access via E Connect™ mobile app for settings, charger monitoring, and data sharing.
- CAN (Controller Area Network) communication support.
- Programmable for specific fleet needs.
- Independent of battery chemistry: lithium-ion, TPPL, flooded, gel, lead-acid EnerSys® batteries.
Technical Information
Nameplate Definitions:
| Position | Description |
|---|---|
| Serial Number | Contains the date code. |
| Hz | Input voltage frequency. The charger must not be used with a different frequency or with a generator of unstable frequency. |
| Phase | TCX. Where "1" denotes a single-phase charger, and "3" denotes a three-phase charger. |
| AC Voltage | Rated voltage at which the charger can operate. |
| DC Voltage | Rated DC output voltage of the charger. |
| Modules | Actual number of power modules installed in the charger cabinet. |
| DC Current | DC current the charger will deliver to a discharged battery with the specified number of installed power modules, based on rated voltage. |
Charger Model: TC3 NS+M
Specifications: 3 Modules, 24V/36V/48V, 210A/195A/180A, Pmax=11150W, 360VAC-440VAC 50/60Hz, S/N: XEEA055001
Symbols: CE, UK, CA
Output Power Codes:
| Output Power (kW) | Number of Modules | Module Power (kW) |
|---|---|---|
| 1.0 | 1 | 1.0 |
| 2.0 | 2 | 1.0 |
| 3.0 | 3 | 1.0 |
| 3.5 | 1 | 3.5 |
| 7.0 | 2 | 3.5 |
| 10.5 | 3 | 3.5 |
| 14.0 | 4 | 3.5 |
| 17.5 | 5 | 3.5 |
| 21.0 | 6 | 3.5 |
| 24.5 | 7 | 3.5 |
| 28.0 | 8 | 3.5 |
Cabinet Size (Number of Available Modules) and DC Cable Size:
| Phase | Module Position | Standard Cable Size | Notes |
|---|---|---|---|
| 1-Phase | Max. 1 | 6 mm² | Freestanding cabinet |
| 1-Phase | Max. 3 | 25 mm² | Three sockets, 3 kW cabinet |
| 3-Phase | Max. 2 | 35 mm² | Two sockets, 7 kW cabinet |
| 3-Phase | Max. 4 | 70 mm² | Four sockets, 3.5-14 kW cabinet |
| 3-Phase | Max. 6 | 95 mm² | Six sockets, max 21 kW cabinet |
| 3-Phase | Max. 8 | 70 mm² or 1 x 95 mm² | Eight sockets, max 28 kW cabinet. Double cable for 24/36/48 V DC; single cable for 72/80 V DC. |
Charging Profile Codes:
| Profile Code | Charger Profile | Description |
|---|---|---|
| P19 | FAST | Fast profile for flooded batteries with Airmix system. Charging speed up to 0.4 C5. Set capacity, temperature, and equalization values. Requires Wi-iQ® device (FAST EU). If Wi-iQ® is not installed or communicating, STDWL profile is used. Weekly equalization for 8 hours is required. |
| P22 | HDUTY | Pulse profile for heavy-duty wet cells. Charging profile diagnoses battery state during charging and adjusts parameters for lead-acid battery optimization. Max 0.25 C5. Automatic capacity adjustment for continuous current loops. |
| P21 | STDWL | Standard (Water Less®) profile for wet cells. IUI profile, Max 0.13–0.20 C5. Automatic capacity adjustment for single-phase loops. Capacity can be manually set if needed. Weekly equalization is required. |
| P02 | GEL | IUI profile. Max 0.17-0.22 C5. Automatic battery capacity with single-phase loops. Manual capacity setting possible. Weekly equalization required. |
| P06 | AGM | IUI profile. Max 0.20 C5. Automatic battery capacity with single-phase loops. End time limitation. Manual capacity setting possible. Weekly equalization required. |
| P07 | OPP (*) | Opportunity charging for PzQ cells. IU (main) and IUI (daily) pulse profile at 0.25 C5. 5% final current. Daily full charge required. If Wi-iQ® device is programmed with capacity, temperature, and voltage values, manually set these values in case of communication loss. Weekly equalization required. |
| P04 | AIRMIX | Pneumatic / Airmix profile. Requires pneumatic kit. IUI profile, Max 0.13–0.25 C5. Automatic battery capacity with single-phase loops. Manual capacity setting possible. Weekly equalization required. |
| P09 | WL20 | Water Less® 20 battery, IUI profile (formerly WF200). Requires communication with Airmix and Wi-iQ® device. Weekly equalization required. |
| P25 | LOWCHG | Low charging profile. IUI profile 0.09-0.13 C5. Manual capacity setting possible. Weekly equalization required. |
| P31 | NXBLOC (*) | For NexSys® TPPL block batteries in normal charging conditions. Charging speed 0.18-0.70 C5. Set capacity, temperature, and equalization values, or use a programmed Wi-iQ® device (NexSys® block battery). If device is not installed or communicating, charger uses manual Ah and temp configuration. Weekly equalization required. |
| P29 | NXSTND (*) | For NexSys® TPPL 2 V batteries in normal charging conditions. Charging speed 0.18-0.25 C5. Set capacity, temperature, and equalization values, or use a programmed Wi-iQ® device (NexSys® 2 V battery). If device is not installed or communicating, charger uses manual Ah and temp configuration. Weekly equalization required. |
| P30 | NXFAST (*) | For NexSys® TPPL 2 V batteries under faster charging conditions with higher current. Charging speed 0.251-0.40 C5. Wi-iQ® device programmed with FAST profile (NexSys® 2 V battery). If device is not installed or communicating, charger uses manual Ah and temp configuration. Weekly equalization required. |
| P32 | NXP2V (*) | For NexSys® TPPL 2 V batteries under faster charging conditions with higher current. Charging speed 0.18-0.40 C5. Wi-iQ® device programmed correctly (NexSys® TPPL 2 V battery). If device is not installed or communicating, charger uses manual Ah and temp configuration. Weekly equalization required. |
| P33 | NXPBLC (*) | For NexSys® TPPL block batteries in normal charging conditions. Charging speed 0.18–0.70 C5. Wi-iQ® device programmed correctly (NexSys® TPPL block battery). If device is not installed or communicating, charger uses manual Ah and temp configuration. Weekly equalization required. |
| ATP2V | For NexSys® ATP 2 V batteries under faster charging conditions with higher current. Charging speed 0.2-0.5 C5. Wi-iQ® device programmed with FAST profile (NexSys® ATP 2 V battery). If device is not installed or communicating, charger uses Ah and temp configuration. Boost voltage must be enabled. I Float = rounded (rounded [battery voltage x battery capacity]/1000 x 0.1). | |
| NXSION (*) | For EnerSys® Lithium-ion batteries only. Charger communicates with EnerSys® lithium-ion battery monitoring device via CAN bus. The monitoring device controls charger operation, and charger settings are optional but recommended. |
Safety Measures
Opportunity Charging Profile Options:
- Operation: In opportunity charging mode, users can charge the battery during breaks, lunch, or anytime during the work schedule. This profile allows safe charging for batteries between 20% and 100% SoC for the entire work week. After weekly equalization, allow sufficient time for battery cooling and periodic electrolyte level checks.
- Daily Charging: This option can be set to provide additional daily charging if the work schedule allows. Consider this option only if daily work demands require extra capacity.
- Equalizing Charge: For lead-acid batteries, performed after normal charging, it balances electrolyte density in battery cells.
- Default Settings: Factory default settings include: DAILY CHARGE inactive, EQUALIZING CHARGE for 6-8 hours, on Sunday at midnight for flooded batteries, and 2 hours weekly for equalization in NexSys® charging profiles.
Block Time: This function prevents the charger from charging the battery when it is blocked. If a charging cycle started before the block period, it will stop at the beginning of the block and resume automatically after it ends.
Trickle Charge: Trickle or maintenance charging maintains the battery's maximum charge level as long as it is connected to the charger.
Charger Options List:
| Term | Description |
|---|---|
| PLC | Programmable Logic Controller |
| LMEB | Short circuit delay / opening acceleration |
| CAN | Controller Area Network |
| Ethernet | Network connection standard |
| Airmix | Electrolyte circulation system |
Safety Measures:
- WARNING: The transport pallet must be removed to ensure proper and safe operation.
- This manual contains important safety and operating instructions. Before using the charger, read all instructions, precautions, and warnings on the charger, battery, and the product using the battery.
- Read all configuration and operating instructions carefully to avoid damaging the battery and charger.
- Do not touch uninsulated output connector parts or battery terminals to prevent electric shock. Never open the unit: High voltage may still be present even after the charger is turned off. Any adjustments, maintenance, or repairs to the unit when open must be performed only by a qualified person aware of the associated hazards.
- During charging, lead-acid batteries produce hydrogen, which can be explosive. Never smoke, use open flames, or create sparks near the battery. Take all necessary precautions if the unit will be operated in areas with a risk of accident. Ensure adequate ventilation according to EN 62485-3 or local regulations to allow gases to escape. Never disconnect the battery during charging.
- If the charger is not equipped with LMEB (short circuit delay / opening acceleration), do not connect or disconnect the battery plug while the charger is on. This can cause an arc flash and burn the connector, potentially damaging the charger or causing battery explosion.
- Lead-acid batteries contain sulfuric acid, which can cause burns. Avoid contact with eyes, skin, or clothing. In case of eye contact, flush immediately with clean water, continuing for at least 15 minutes. Seek medical attention immediately.
- Installation, configuration, and servicing of the unit must be entrusted only to qualified personnel. Before servicing the charger, disconnect power from all AC and DC connections.
- The unit must be operated according to the specified protection level and must not come into contact with water.
- Do not install on surfaces subject to vibration (near compressors, motors).
- The charger must be installed so that gases from the charging battery are not drawn into the unit by the fans.
- The charger is not intended for outdoor use – it must be operated indoors.
- Do not expose the charger to moisture. Operating temperature should be between 0°C and 45°C, with relative humidity from 0 to 70%.
- Do not use the charger if it has been dropped, severely impacted, or otherwise damaged.
- To ensure continuous protection and reduce fire risk, chargers must be installed on a non-flammable surface.
- For NexSys® iON batteries, use only EnerSys® batteries that include a battery management system and all necessary safety features for the integrated battery pack.
- The charger's DC cables emit a low-power magnetic field in the surrounding area (<5 cm). Individuals with implanted medical devices should avoid being near the charger during charging.
- In case of startup problems, contact one of the company's trained technicians. The unit is intended exclusively for charging industrial lead-acid traction batteries and EnerSys® batteries, as well as NexSys® batteries in industrial facilities. Upon decommissioning, the unit's casing and internal components may be disposed of by specialized companies. Local regulations take precedence over any instructions in this document and must be strictly followed (WEEE 2002/96 EC).
Installation
Location: To ensure safe operation, choose a location free from excessive moisture, dust, flammable materials, and corrosive vapors. Also, avoid high temperatures (above 45°C) and protect the charger from contact with liquids. Do not block the charger's vents to avoid restricting ventilation. If mounting on or above a flammable surface, follow the charger's warning label. It is recommended to mount the charger at least 72 cm from the nearest top edge of the battery.
Cabinet Mounting: The charger must be mounted vertically on a wall, rack, shelf, or floor. The minimum distance between two chargers is 31 cm. For wall mounting, ensure the surface is vibration-free and the charger is mounted vertically. For floor mounting, ensure surfaces are free of vibration, water, and moisture. Avoid locations where the charger may be splashed with water. The charger must be secured at 2 or 4 points, depending on the bracket type. The hole pattern depends on the charger model (refer to the technical data sheet).
Electrical Connections: To prevent charger failure, ensure it is connected to the correct mains voltage. Follow local and national norms and regulations when making connections.
WARNING: Before connecting power to the charger terminals, ensure the power source is turned off and the battery is disconnected.
- Mains Power: Single-phase or three-phase mains power of 230 V AC or 400 V AC (depending on charger type) can be connected using a standard socket and an appropriate automatic switch (not included). Current consumption is indicated on the charger's nameplate.
- Battery Connection: The charger must be connected to the battery using the supplied cables:
- RED cable: to the POSITIVE battery terminal.
- BLACK cable: to the NEGATIVE battery terminal.
- AC Circuit Protection: The user must ensure adequate protection of branch circuits and a method for disconnecting the charger from the AC supply to enable safe servicing.
CAUTION: Risk of fire / electric shock. Use only in circuits equipped with branch circuit protection according to regulations and norms. Observe applicable safety regulations. The system protection installed on the charger's power supply must match the charger's electrical parameters. It is recommended to install an appropriate automatic switch. Ensure that when replacing fuses, only the specified type and correct size of fuses are used.
The unit meets Class 1 safety requirements, meaning it must be grounded and powered from a grounded power source.
Charger Grounding: Connect the ground wire to the appropriate terminal, usually marked with one of two symbols (below).
[Ground Symbol] GND
DANGER: LACK OF GROUNDING OF THE CHARGER CAN LEAD TO FATAL ELECTRIC SHOCK. Follow national electrical codes for sizing the grounding conductor.
DC Connector Polarity: Charging cables are connected to the charger's DC output: the red charging cable (positive) is connected to the charger's positive bus, and the black charging cable (negative) to the negative bus. When connecting the battery, pay attention to the polarity of the charger's outputs. Incorrect connection will cause the DC fuses in the power modules to blow.
EU Declaration of Conformity: EnerSys® hereby declares that the NexSys®+ series chargers comply with the following regulations applicable in the UK and EU:
- The Electrical Equipment (Safety) Regulations 2016 (S.I. 2016/1101)
- European Directive 2014/35/UE: Safety
BS EN IEC 62368-1: 2020 + A11:2020 - The EMC Regulations 2016 (S.I. 2016/1091)
Directive 2014/30/UE: Electromagnetic Compatibility
BS EN IEC 61000-6-2: 2019
BS EN IEC 61000-6-4: 2019 - Directive 2011/65/UE: RoHS
- The Control of Electromagnetic Fields Regulations 2016 (S.I. 2016/588)
Directive 2013/35/UE: Electromagnetic Fields
BS EN IEC 62311: 2020 - The Radio Equipment Regulations 2017 (S.I. 2017/1206)
Directive 2014/53/UE
ETSI EN 301 489-1 V2.1.1 (2017-02)
ETSI EN 301 489-17 V3.1.1 (2017-02)
ETSI EN 300 328 V2.2.2 (2019-07)
NOTE: The charger's DC cables emit a low-power magnetic field in the surrounding area (<5 cm). Even if emissions are lower than standard limits, individuals with implanted medical devices should avoid being near the charger during charging.
Operating Instructions
Control Panel Description:
| Designation | Function | Description |
|---|---|---|
| 1 | Graphic Display | Displays charger operation information/menu. |
| 2 | Green Charging Completion Indicator | OFF = Charger off or battery unavailable. BLINK = Cooling phase. ON = Battery ready and available. |
| 3 | Navigation Button, Left Arrow / ESC | Enter main menu / scroll left / exit menu. |
| 4 | Navigation Button, Up Arrow | Navigate menu / change value. |
| 5 | Yellow Charging Indicator | OFF = Charger off or battery unavailable. ON = Charging in progress. |
| 6 | USB Port | Download notes / upload software. |
| 7 | Navigation Button, Down Arrow | Navigate menu / change value. |
| 8 | Red Fault Indicator | OFF = No fault. BLINK = Fault detected. ON = Fault. |
| 9 | Blue AC Power Indicator | OFF = No AC power. ON = AC power present. |
| 10 | Navigation Button, Right Arrow / EQUALIZE | Scroll right / start equalization charge or desulfation. |
| 11 | ENTER/STOP/START Button | Select menu option / enter value / stop and restart charging. |
Idle State Indication: When the charger is in standby mode (battery not connected) and the ENTER/STOP/START button has not been pressed, the display will show the following information:
| Designation | Description |
|---|---|
| 1 | Charger DC Output Voltage |
| 2 | Selected Charging Profile |
| 3 | Firmware Version |
| 4 | Battery Connection Status |
| 5 | System Date and Time |
Diagram of Control Panel Functions
Battery Connection: Ensure charger connectors match battery connectors. Connect charger connectors to battery connectors. For chargers with two connectors, both must be connected for charging to begin. Always connect connector 1 first. NexSys® iON charger connectors are optionally protected against arc discharge (LMEB) in case of battery disconnection during charging.
BMS CONNECTED: When CAN communication is established between the NexSys® iON battery and the charger, "BMS CONNECTED" will appear on the display. If the message is not displayed, the charging cycle will not start. Check the CAN wiring and the battery.
Starting Charging: After connecting the battery to the charger, the control board measures the voltage. If the automatic start function is enabled, the charger will automatically begin charging the battery. Press the ENTER/STOP/START button if the battery is already connected. During NexSys® iON battery charging, CAN communication is established between the battery and the charger, and "BMS CONNECTED" is displayed on the screen. After a few seconds, the battery will close the contactor and charging will begin. The charger will start the countdown process and display charging information.
Delayed Start: If the charger is programmed for a delayed start, charging will begin after the set delay time has elapsed. When the battery is connected to the charger, the display will show the remaining time until charging begins.
Charging without Wi-iQ® Device: If the Wi-iQ® device adapter has not been activated or no Wi-iQ® device is in range, proper charging will commence after the programmed delay time has elapsed. The charger uses the profile, capacity, and temperature settings programmed in the configuration menu.
Pairing with Wi-iQ® Device: If at least one Wi-iQ® device adapter is in range, the charger will activate and supply power to the battery. The display will show "SCAN", followed by "IQLINK". This cycle identifies which Wi-iQ® device in range is connected to the charger. Once identified, the charger retrieves data from the Wi-iQ® device, displays the battery serial number, updates the profile capacity and temperature, and initiates the main charging process.
Charging Display Details: The DC charging current (2) depends on the battery voltage and its state of charge. The charging current automatically decreases as the battery voltage increases during charging. During battery charging, various charging parameters are displayed on the graphic display, including the charge percentage (3).
NexSys® iON Battery Charging: For NexSys® iON battery charging, the battery management system controls the charging current and voltage. The battery management system sends information to the charger via the CAN bus to initiate, stop, and display the requested current and voltage values. If CAN communication is lost during the charging cycle, the charger will stop charging, and the "BMS CONNECTED" message will not be displayed.
Stopping Charging: Charging can be paused and resumed at any time from where it was interrupted. Simply press the ENTER/STOP/START button (designated by number 11 in the control panel functions section); a remote control is available for remote operation.
Charging Complete:
- Indication: Upon successful completion of charging, the GREEN charging completion indicator lights up. The GREEN charging completion indicator stays lit, and the display shows "CHARGE COMPLETE". The display cycles through the following indications:
- Total charging time
- Energy delivered to the battery in Ah
- Fault Indication: Each illuminated LED indicates a problem during charging. Refer to the control panel functions section for more information.
If the battery remains connected and trickle charging is enabled, trickle charging will occur to maintain optimal charge. The battery is now ready for use. Press the ENTER/STOP/START button before disconnecting the battery.
Equalization Charging: Equalization charging can be started manually or automatically.
- Manual Start: After charging is complete (green LED is lit or blinking), press the RIGHT/EQUALIZE button. The equalization charge button can also be pressed at any time during charging. Equalization charging will begin after the main charging is completed. A symbol indicates equalization charging. During equalization charging, the charger displays the output current and alternates between: battery voltage, cell voltage, and remaining time.
- Note: Upon manual initiation of equalization charging, the output parameters will be set automatically.
Automatic Equalization Charging: If the charger configuration is programmed for an equalization charging day, it will start automatically on the specified day of the week after the main charging is completed.
Battery Ready: After equalization charging, the battery will be available when the green LED lights up, and the display shows "AVAIL". The battery is now ready for use. If the battery remains connected and trickle charging is enabled, trickle charging will occur to maintain optimal charge. Press the ENTER/STOP/START button before disconnecting the battery.
AC Power Failure: In the event of an AC power failure while the battery is connected to the charger during a charging cycle, the charger will reset, and a new charging cycle will begin upon power restoration. All charger settings, as well as the date and time, will be retained.
Series Charging: For series charging, the voltages of both batteries sum up and must match the rated DC voltage specified on the charger's nameplate. The charger's rated ampere-hour capacity must match the rated ampere-hour capacity of each battery. The charging cycle will not start until both batteries are connected.
Service and Troubleshooting
Displaying Faults: In case of a fault, one of the corresponding fault codes will appear on the display. If it is a critical fault, charging will be interrupted, and the red fault LED will light up.
Fault Codes:
| Fault | Cause | Solution |
|---|---|---|
| DF-CUR | Current error before DF1 (may be low supply level, phase loss, or faulty module). | Call service. |
| DF1 | Critical current error, DF1 error on all modules (check supply loss and phase). | Call service. |
| DF2 | Output fuse error, reversed battery polarity. | Check correct connection to battery (polarity) and output fuse. |
| DF3 | Incorrect battery voltage for charger setting. | Battery voltage too high or too low. Lead-acid battery voltage must be between 1.6 V and 2.4 V per cell. Use the correct battery charger. |
| DF4 | Deep discharge. | Charging is in progress. |
| DF5 | Control of battery or charger setting (Ah protection, charge time limit, negative Dv/Dt voltage). | DF5 occurs when the charging profile has reached a fault state. This may be a current increase during the regulation phase indicating battery heating or an incorrectly programmed regulation voltage, or excessively long charging time exceeding the safety limit. Check charging parameters: profile, temperature, capacity, cables. Check battery condition: faulty cells, high temperature, water level. |
| DF7 | Air compression pump fault. Di-Dt current, thermal leakage. | Call service. |
| TH | Charger thermal fault, all modules are in thermal fault state (check airflow and ambient temperature). | Check if the fan is operating correctly, if the ambient temperature is too high, or if the charger's natural ventilation is insufficient. If all modules are in thermal fault state, the TH fault will appear. |
| TH-Amb | Excessively high ambient temperature. | Relocate the charger to a location with a lower ambient temperature. Follow installation and safety instructions. |
| DFMOD | Module fault (error type information can be found in the module menu). | Call service. |
| MOD DEF | Module is disconnected or not responding. | Clean the module or connection on the mounting plate. If it does not work, call service. |
| MOD DFC | Converter module fault – inability to deliver maximum current (check AC phases and AC fuse). | Check the supply. |
| MOD TH | Module thermal error (check airflow in the surroundings, see Module Status Description, to check the internal temperature sensor). | Check if the fans are operating correctly and/or if the ambient temperature is too high or if the charger's natural ventilation has deteriorated. If all modules are in thermal fault state, the TH fault will appear. |
| MOD FUS | Module output fuse failure. | Call service. |
| MOD Err | Module internal error. | Call service (check module status description). |
| MOD VBAT | Battery voltage is incorrect compared to the fuse and VLMFB compared to modules. | Call service (check voltage reading on the module status description). |
| BAT TEMP | Excessively high battery temperature of the Wi-iQ® battery monitoring device. | The battery must cool down. |
| TH-LOCK | Module is locked due to repeated thermal events. | Check the Exx.cdv file to reset the lock, or call service. |
| CHECK MODULE | Charger is locked due to repeated internal errors. | Call service. |
| POWER MODULE OFF | Loss of CAN bus communication between the display and the module. | Check the ribbon cable, AC supply, connected module, idle state = off, or call service. |
| DF-TECHNO | Wi-iQ® device setting is inconsistent with the charger type. | Check the charger and Wi-iQ® device settings (example: Wi-iQ® device set for NexSys® charger with IMPAQ charger). |
| DF-VREG | Modules are inconsistent with the regulation current voltage setting. | Call service (replace the faulty module). |
| DF-ID | Menu setting is inconsistent with the module type (e.g., cell setting = 12 V, module type: 40 cells). | Use the correct module. |
| CANBUSERROR | CAN bus error. | Check each battery cell during discharge. Check if the Wi-iQ® device is correctly calibrated (see: Wi-iQ® device installation manual). |
| DEFEEP | Memory access denied. | Call service. |
| DEFRTC | Clock access denied. | Call service. |
WARNING: HAZARDOUS VOLTAGES ARE PRESENT INSIDE THE CHARGER CABINET. TASKS RELATED TO ADJUSTMENT OR SERVICING OF THIS CHARGER MAY ONLY BE PERFORMED BY QUALIFIED PERSONS.
The charger requires minimal maintenance. Connections and terminals should be clean and tight. The unit (especially the heatsink) should be periodically cleaned with low-pressure air to prevent excessive dust accumulation on components. Be careful not to strike or move any adjustments during cleaning. Before cleaning, ensure that both AC lines and the battery are disconnected. The frequency of this type of maintenance depends on the environment in which the unit is installed.
All data, descriptions, and specifications provided in this document are subject to change without notice. Before using the product(s), it is recommended that the user assess the suitability of the product(s) for their specific application and not rely solely on the information contained in this document, as it may refer to any general or non-specific application. The responsibility for the correct selection of the product and the application of information to a specific use rests with the User. The product(s) presented in this document will be used under conditions independent of the manufacturer, therefore all warranties, express or implied, regarding the suitability or appropriateness of such product(s) for a specific application or any particular use are excluded. The user expressly assumes all risks and liabilities – whether contractual, tortious, or otherwise – related to the use of the product or the utilization of the information contained in this publication.
