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4. Operation and programming

4.1. Operation modes

The BatteryProtect has three operating modes, the appropriate mode can be selected via a programming procedure (see chapter

Programming [10]

 ).

• Mode A: Buzzer or LED mode (default).

• Mode B: Relay mode.

• Mode C: Li-ion mode.

Modes A and B affect the behavior of the alarm output.

Mode C, the Li-ion mode, takes into account lithium batteries that have an external BMS or a BMS with load and/or charge
disconnect.

Buzzer or LED mode behaviour

• In case of under voltage, a continuous alarm will start after 12 seconds. The BP will disconnect the load after 90 seconds and

the alarm will stop. Reconnect delay: 30 seconds.

• In case of over voltage, the load will be disconnected immediately and an intermittent alarm will remain on until the overvoltage

problem has been corrected. There is no reconnect delay.

Relay mode behaviour

• In case of under voltage, the relay will engage after 12 seconds. The BP will disconnect the load after 90 seconds and the relay

will disengage.

• In case of over voltage, the load will be disconnected immediately and the alarm output will remain inactive. Overvoltage trip

levels: 16V (for a 12V system) respectively 32V (for a 24V system).

Li-ion mode behaviour

Only select the Li-Ion mode if your BMS has a load disconnect and/or a charge disconnect output. This is usually not the case
for so-called drop-in batteries with internal BMS. For lithium batteries/BMS without load disconnect output, select mode A or B
instead.

Connect the load or charge disconnect (depending on application) output of the BMS to the Remote H terminal of the
BatteryProtect.

• The load or charger is disconnected 

immediately

 when the load or charge disconnect output of the BMS switches from ‘high’

to ‘free floating’. The under voltage thresholds and alarm output of the BatteryProtect are inactive in this mode.

• It will remain disengaged for 30 seconds, even if it receives a re-engage signal within that time period. After 30 seconds it will

respond immediately to a re-engage signal.

BatteryProtect 12/24V

Page 9

Operation and programming

Содержание battery protect BP 100

Страница 1: ...BatteryProtect 12 24V 12 24V 65A 12 24V 100A 12 24V 220A rev 00 08 2022 ENGLISH...

Страница 2: ...3 3 4 BatteryProtect in a lithium system with external BMS and load disconnect output 7 3 3 5 Two BatteryProtects for load and charger control 8 3 3 6 BatteryProtect Alarm output wiring 8 4 Operation...

Страница 3: ...remote on off port to protect from over voltage Compared to the Smart BatteryProtect the BatteryProtect must be programmed via the PROG pin to GND pin method The BatteryProtect is a uni directional d...

Страница 4: ...nt in case of Li ion batteries especially after low voltage shutdown Over voltage protection To prevent damage to sensitive loads due to over voltage The load is disconnected whenever the DC voltage e...

Страница 5: ...uit protection of the BP will be activated if you try to directly connect loads with capacitors for example inverters or inverter chargers on their DC inputs For that use case please use the BP to con...

Страница 6: ...inverter charger via a BP you must use the BP to control the inverter or inverter charger via its remote port See example below Note that the image shown below is an example for all BatteryProtect mod...

Страница 7: ...the load after 90 seconds automatically DC loads BatteryProtect in a simple system with wire loop between L and H input factory default The same example below This time the switch is wired between bat...

Страница 8: ...s the BP via its remote terminal For this the BatteryProtect must be programmed to Li ion mode The dry contact is wired between the L and H connectors of the remote terminal If for example ATD opens i...

Страница 9: ...when there is an actual low cell voltage and the BP will disconnect the load and remains off for 30 seconds even if it receives a restart signal H becomes high again within this period After this 30...

Страница 10: ...of the BPs always follow the current flow from IN to OUT The positive terminal of the charger goes to the IN input of the BP DC loads BP 65 charge disconnect BP 65 load disconnect Two BatteryProtects...

Страница 11: ...l disconnect the load after 90 seconds and the relay will disengage In case of over voltage the load will be disconnected immediately and the alarm output will remain inactive Overvoltage trip levels...

Страница 12: ...re is a connection between the PROG pin and the GND pin the 7 segment display will first step through the shutdown and restart voltage combinations as indicated by the numbers 0 9 see the Programming...

Страница 13: ...ehavior This section describes the behaviour of the BatteryProtect when it is controlled via the remote on off input and when a short circuit has been detected The BatteryProtect will connect the load...

Страница 14: ...roof Load disconnect delay 90 seconds immidiate if triggered by a BMS Load reconnect delay 30 seconds Default thresholds Disengage 10 5 V or 21 V Engage 12 V or 24 V Operating temperature range Full l...

Страница 15: ...re 1 Confirm that the load current draw does not exceed the BP current rating 2 Check for loose high resistance connections and ensure that appropriate gauge wiring is used in the installation 3 Do no...

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