IMPORTANT SAFETY INSTRUCTIONS

Keep the manual for future reference.

This section contains safety information that must be observed at all times when working.

The product has been designed and tested in accordance with international safety requirements. As with all electrical or electronical devices, some residual risks remain despite careful construction. To prevent personal injury and property damage and to ensure long-term operation of the product, read this section carefully and observe all safety information at all times.

DANGER

Danger to life due to electric shock when live components or DC cables are touched

The DC cables connected to a battery may be live. Touching live DC cables results in death or serious injury due to electric shock.

  1. Have the inverter and the battery mounted, installed and commissioned only by qualified persons with the appropriate skills.
  2. Disconnect the system from voltage sources and make sure it cannot be reconnected before working on the device.
  3. Do not touch non-insulated parts or cables.
  4. Wear suitable personal protective equipment for all work on the product.

DANGER

Danger to life due to electric shock when live components are touched because the battery grounding is connected to grounding conductor terminals

Due to the connection of the battery grounding to the grounding conductor terminals, high voltages might be present on the enclosure of the inverter. Touching live parts and cables results in death or lethal injuries due to electric shock.

  1. Only the grounding conductors of the AC power cables may be connected to the grounding conductor terminals of the inverter.
  2. Ground the battery-storage system as described in this document.
  3. If the locally applicable standards and directives require battery grounding, connect the battery grounding to the grounding busbar in the distributor.

DANGER

Danger to life due to electric shock in case of overvoltages and if surge protection is missing

Overvoltages (e.g., in the event of a flash of lightning) can be further conducted into the building and to other connected devices in the same network via the network cables or other data cables if there is no surge protection. Touching live parts and cables results in death or lethal injuries due to electric shock.

  1. Ensure that all devices in the same network and the battery are integrated into the existing surge protection.
  2. When laying the network cables or other data cables outdoors, it must be ensured that a suitable surge protection device is provided at the transition point of the cable from the inverter or the battery outdoors to the inside of a building.

DANGER

Danger to life due to fire or explosion due to improper handling of the battery modules

Improper handling can cause the lithium inside the battery to ignite. This can cause a fire or explosion. Death or lethal injuries due to hot or flying debris can result.

  1. Never use defective or damaged battery modules.
  2. Do not open, pierce, or drop battery modules.
  3. Do not install or operate the battery modules in potentially explosive atmospheres or areas of high humidity.
  4. Do not expose the battery modules to high temperatures.
  5. Never throw the battery modules into a fire.
  6. Store the battery modules dry and within the specified temperature range.
  7. If a fire starts from the battery, contact the fire department. Extinguishing is a high risk due to toxic gases, risk of explosion and rapid spread.
  8. If a fire breaks out in the vicinity of the battery, use an ABC fire extinguisher.

DANGER

Danger to life due to electric shock due to touching live parts of the battery modules

A high voltage is present at the DC terminals of each battery module. When the DC cables are installed within the battery cabinet, the DC voltages of the individual battery modules add up. Touching the DC terminals or connected DC cables results in death or lethal injuries due to electric shock.

  1. Do not touch any live components.
  2. Wear suitable personal protective equipment for all work on the product.
  3. Observe all warning messages on the product and in the documentation.
  4. Observe the local health and safety regulations.

DANGER

Danger to life due to electric shock due to touching live components or cables with insufficient or no grounding

If there is insufficient or no earthing, high voltages can be present at the battery cabinet enclosure in the event of a fault. Touching live parts and cables results in death or lethal injuries due to electric shock.

  1. Earth the battery cabinet.
  2. Earth the battery management system during installation.

WARNING

Danger to life due to fire and deflagration

In rare cases, an explosive gas mixture can be generated inside the inverter under fault conditions. In this state, switching operations can cause a fire and, in very rare cases, a deflagration inside the inverter. Death or lethal injuries due to the spread of a fire can result.

  1. In case of failure, do not perform any direct actions on the inverter.
  2. In case of failure, ensure that unauthorized persons have no access to the product.
  3. In case of failure, disconnect the PV module from the inverter via an external disconnection device. If there is no disconnecting device present, wait until no more DC power is applied to the inverter.
  4. In the event of a fault, disconnect the AC circuit breaker, or keep it disconnected in case it has already tripped, and secure it against reconnection.

WARNING

Risk of injury due to toxic substances, gases and dusts.

In rare cases, damage to components can result in the formation of toxic substances, gases, or dusts inside the inverter or battery. Touching toxic substances and inhaling toxic gases and dusts can cause skin irritation, burns or poisoning, trouble breathing and nausea.

  1. Do not expose the battery modules to severe jolts.
  2. Do not open, dismantle, or perform mechanical work on the battery modules.
  3. Only perform work on the inverter and battery (e.g., troubleshooting, repair work) when wearing personal protective equipment for handling of hazardous substances (e.g., safety gloves, eye and face protection, respiratory protection).
  4. Ensure that unauthorized persons have no access to the system.
  5. In case of contact with electrolyte, rinse the affected area immediately with water and consult a doctor without delay.

WARNING

Danger to life due to fire when failing to observe tightening torque specifications on live bolted connections

Failure to follow the specified tightening torques reduces the ampacity of live bolted connections and the contact resistances increase. This can cause components to overheat and catch fire. Death or lethal injuries can result.

  1. Ensure that live bolted connections are always tightened with the exact tightening torque specified in this document.
  2. Only use suitable tools when working on the device.
  3. Avoid repeated tightening of live bolted connections as this may result in inadmissibly high tightening torques.

WARNING

Danger to life due to burns caused by electric arcs through short-circuit currents

Short-circuit currents in the battery can cause heat build-up and electric arcs. Heat build-up and electric arcs may result in lethal injuries due to burns.

  1. Disconnect the inverter and battery from voltage sources before performing any work on the battery-storage system.
  2. Remove watches, rings and other metal objects prior to carrying out any work on the battery.
  3. Use insulated tools and wear insulated gloves for all work on the battery.
  4. Do not place tools or metal parts on the battery modules or battery management system.

WARNING

Risk of injury due to the weight of the battery components

Injuries may result if the battery components are lifted incorrectly or dropped while being transported or installed.

  1. Transport and lift the battery components carefully. Take the weight of each individual component into account.
  2. Transport battery components individually only.
  3. Wear suitable personal protective equipment, at a minimum safety footwear with a non-slip sole and steel cap, for all work on the battery.

WARNING

Danger to life due to electric shock from destruction of the measuring device due to overvoltage

Overvoltage can damage a measuring device and result in voltage being present in the enclosure of the measuring device. Touching the live enclosure of the measuring device results in death or lethal injuries due to electric shock.

  1. Only use measuring devices with a measurement ranges designed for the maximum AC and DC voltage of the inverter.
  2. Only use measuring devices with measurement ranges designed for the maximum DC voltage of the battery.

WARNING

Danger to life due to fire or explosion when batteries are deeply discharged

A fire may occur due to incorrect charging of deeply discharged batteries. This can result in death or serious injury.

  1. Put the battery into operation within the specified time limits.
  2. If the battery is not put into operation within the specified time limits, contact Service to request recyclization of the battery-storage system.
  3. Before commissioning the system, verify that the battery is not deeply discharged.
  4. Do not commission the system if the battery is deeply discharged.
  5. If the battery is deeply discharged, contact Service.

CAUTION

Risk of injury due to the weight of the inverter

Injuries may result if the inverter is lifted incorrectly or dropped while being transported or when mounting it to the wall mounting bracket.

  1. Transport and lift the inverter carefully. In doing so, keep in mind the weight of the inverter.
  2. Wear suitable personal protective equipment for all work on the product.
  3. Transport the inverter using the carrying handles or hoist. In doing so, keep in mind the weight of the inverter.
  4. Use all carrying handles provided during transport with carrying handles.
  5. Do not use the carrying handles as attachment points for hoist equipment (e.g. straps, ropes, chains). Insert eye bolts into threads provided on top of the inverter to attach the hoist system.

CAUTION

Risk of burns due to hot inverter enclosure parts

Some parts of the inverter enclosure can get hot during operation. Touching hot enclosure parts can result in burn injuries.

  1. During operation, do not touch any parts other than the enclosure lid of the inverter.
  2. Wait until the inverter has cooled down before touching the enclosure.

CAUTION

Risk of burns due to hot battery modules

The battery modules in the battery cabinet can get hot during operation. Touching hot battery modules can cause burns.

  1. Keep the battery cabinet closed at all times during operation.
  2. Before opening the battery cabinet, wait until the battery modules have cooled down.

CAUTION

Risk of injury due to sharp edges

The battery components contain sheet metal parts with sharp edges. Touching the sharp-edged sheet metal parts may result in injuries.

  1. Wear safety gloves for mounting and disassembling the battery.

NOTICE

Damage to the enclosure seal in subfreezing conditions

If you open the inverter when temperatures are below freezing, the enclosure seals can be damaged. This can lead to moisture entering the inverter.

  1. Only open the inverter if the ambient temperature is not below -5°C.
  2. If a layer of ice has formed on the enclosure seal when temperatures are below freezing, remove it prior to opening the inverter (e.g. by melting the ice with warm air).

NOTICE

Damage to the system due to sand, dust and moisture ingress

Sand, dust and moisture penetration can damage the products of the system and impair its functionality.

  1. Only open the inverter and battery cabinet if the humidity is within the thresholds and the environment is free of sand and dust.
  2. Do not open the inverter and battery cabinet during a dust storm or precipitation.
  3. Close the inverter and battery cabinet in case of interruption of work or after finishing work.

NOTICE

Damage to the product due to cleaning agents

The use of cleaning agents may cause damage to the product and its components.

  1. Clean the inverter and all its components only with a cloth moistened with clear water.
  2. Clean all battery components with a dry cloth only.

NOTICE

Damage to the inverter due to electrostatic discharge

Touching electronic components can cause damage to or destroy the inverter through electrostatic discharge.

  1. Ground yourself before touching any component.

NOTICE

Damage to the inverter due to switching operations on the transformer

If voltages are present in the inverter, switching operations on the transformer can lead to large fluctuations in the voltage in the inverter. Large fluctuations in voltage can damage components in the inverter.

  1. Disconnect the inverter from voltage sources before performing any switching operations on the transformer.

NOTICE

Damage to assemblies caused by impact from test probes

When measuring voltages in the inverter, test probes must be used at measuring points within assemblies. The use of test probes may damage the assemblies.

  1. Test probes are to be used only at measuring points specified in this document. Other parts (e.g. components) must not be touched.
  2. Always move the test probes in the inverter slowly and carefully.

NOTICE

Damage to the battery due to incorrect installation or connection

The battery management system and battery modules can be damaged by incorrect installation or incorrect electrical connection.

  1. Install the battery management system and battery modules in accordance with the specifications in this manual only.
  2. Make all electrical connections on the battery management system and battery modules in accordance with the specifications in this manual only.

NOTICE

Damage to the battery due to short circuit

Incorrect connection of the DC lines can trigger a short circuit. High currents due to short circuit lead to damage to the battery modules or battery management system.

  1. Take the mechanical connector coding of the supplied DC cables into account. Do not use force when connecting the DC cables.
  2. Always connect red DC cables to the red DC terminals.
  3. Always connect black DC cables to the black DC terminals.
  4. Always connect the two DC lines between the battery management system and battery modules first.
  5. Always replace damaged battery modules without delay.

NOTICE

Damage to the battery modules due to moisture or corrosive substances

Moisture or corrosive substance penetration can damage the product and impair its functionality.

  1. Do not expose battery modules to rain and do not immerse in liquid.
  2. Do not expose battery cells to corrosive substances (e.g., ammonia, salt).

NOTICE

Property damage due to unauthorized access to the system

Parameters may be set incorrectly due to unauthorized access to the system on account of freely available switch cabinet key. When parameters are set incorrectly, technical thresholds are being exceeded. An exceeding of technical thresholds can lead to damage of the affected products.

  1. Remove the switch cabinet keys from the door locks.
  2. Store the switch cabinet keys in a safe place.
  3. Ensure that only qualified persons have access to the switch cabinet keys.

NOTICE

Damage to the display of the battery management system

The display of the battery management system can be damaged by inappropriate operation.

  1. To activate the display or confirm something, simply tap with the fingers on the highlighted area beside the display.
  2. Do not tap directly on the display.
  3. Do not use objects to tap.
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