RS485 Battery Management System BMS WB7660QB-24B
RS485 Battery Management System BMS WB7660QB-24B
Key Technical Data
Attribute
Value
Detection path:Battery
24 units;Current: 1path (equipped with Hall sensor)
Temperature
2 path (equipped with temperature sensor)
Input
One unit: DC 2V, 6V, 12V(optional), Current: 0～±500A(Default)
Temperature
-20℃～+85℃;
Accuracy
Current
Temperature
Voltage:0.2% (10% ~ 120% rating)
1% (1% ~ 120% rating);
±1.5℃;
Responding Time
3s (about 100ms to detect oneunit of battery);
Communication mode
Half-duplex,RS485 serial communication;
Communication node
≤32points;
Baud rate
2400/4800/9600/19200BPS, DIP switch (default: 9600BPS).
Power supply
DC 12V~24V or DC 43V~300V or AC90V~250V;
Power consumption
< 3W (include Hall current sensor and temperature sensor);
Safety
In line with IEC60950-1:2005/EN60950-1:2006;
Isolation voltage
Between input and output ＞DC 2.5kV, 1min,
Between power supply and input,＞DC 2.5kV, 1min,
Between power supply and output ＞DC 1.5kV, 1min;
Weight
<700g;
Ambient temperature
-20℃ ~ +65℃;
Relative humidity
5% ~ 95% (without corrosion and condensation);
Altitude
< 4000m;
MTBF(mean time between failures)
﹥100000hours
Product Description And Application
The basic function of the WB7660QB-24Z battery inspector is to detect the single cell voltage of the battery group and the total voltage at both ends of the battery group. It is mainly used to monitor the voltage of the battery group in the DC power supply of the telecommunication machine room and the communication base station. The internal measurement circuit uses high precision A/D to detect the battery voltage in each section. Each measurement port is isolated by the photoelectric isolator and the inner core circuit, and the battery voltage input port is connected with the protective resistance, which ensures the good safety of the battery inspector and the high precision of the measured data. The instrument can measure up to 24 batteries, and the type of single cell is divided into 2V, 6V and 12V. Using RS485 communication interface to output data, it can be directly connected with the monitoring module of the DC screen manufacturer.
The Basic Features of the Product
1.Detect the voltage of the single battery, the total voltage of the battery, the charge and discharge current of the battery, the ambient temperature of the battery cabinet and the surface temperature of the battery.
2.Each unit can monitor up to 24 batteries, multiple inspection units and can monitor the 108 and 220 batteries. The battery is set and connected according to the actual number, such as the only BAT1+ to BAT20+ connection when 19.
3.There is a protective resistor connected to the battery terminal in the battery tester. Please pay special attention to the positive and negative polarity of the battery terminal when wiring.
4.Connection mode: all plug and pull terminal connections are used to facilitate user connection and late product maintenance.
5.Communication mode: RS485 communication interface, Modbus-RTU and Emersoncommunication protocol can be set up, and the address is selected through the dialing switch.
Product Shape And Installation Size
Figure 1. The Shape of Battery Inspector and Size Diagram of Installation (unit: mm)
The Position And Definition Of The Connecting Terminals
Figure 2. Product Connecting Terminals Drawing (If there is a difference from the actual product, please take the material object as accurate)
Table1. Definition of the Battery Inspector Connecting Terminals
|
Port Name |
Indicia |
Definition |
Remarks |
|
J1 Power input port |
L/- |
AC power supply input phase line/ DC power supply input negative pole |
AC and DC common terminal, please pay attention to the voltage level when using, so as not to damage the product. |
|
N/+ |
AC power supply input midline / DC power supply input positive pole |
||
|
PE |
Protective grounding |
||
|
J2 Current detection port |
+12V |
Positive pole of the current sensor power supply (output) |
Equipped with Hall sensor |
|
GND |
Grounding of the current sensor power supply (output) |
||
|
ICT |
The current sensor 1 input |
||
|
|
|||
|
J3 Temperature detection port |
+3.3V |
Positive pole of the temperature sensor power supply (output) |
Equipped with temperature sensor |
|
GND |
Grounding of the temperature sensor power supply (output) |
||
|
T1 |
The temperature sensor 1 input |
||
|
T2 |
The temperature sensor 2 input |
||
|
J4 RS485 interface |
A |
RS485A |
Communication with background or monitoring module, double connection port, convenient cascade |
|
B |
RS485B |
||
|
J5 Battery detection port |
BAT1+～BAT24+ |
Positive pole from first section battery to twenty-fourth section battery |
If the battery connection polarity is wrong, the value of the detected battery voltage is abnormal |
|
BAT24- |
Negative pole of the battery pack (or negative pole of the twenty-fourth section battery) |
||
|
Dial switch |
It is used to set up communication protocol, baud rate and the address of battery inspector. Specific settings see "Dial Code Switch Settings". |
||
Dial Code Switch Settings
Figure 3. Position Diagram of Dialing Switch
The dial switch1'~ 2'bits are used to set the baud rate,3' bits are used to select the communication protocol. 4'~ 8' bits are used to set up the binary communication address of the inspector. Switch to "ON" to indicate that the setting is 0. The details are set as follows.
Table 2. Baud Rate Settings
|
1' Bits |
2' Bits |
Baud Rate |
|
ON |
ON |
2400BPS |
|
ON |
OFF |
4800BPS |
|
OFF |
ON |
9600BPS |
|
OFF |
OFF |
19.2KBPS |
Table 3. Sensor Address Settings
|
4' Bits |
5' Bits |
6' Bits |
7' Bits |
8' Bits |
Sensor Address |
|
ON |
ON |
ON |
ON |
ON |
0+112 |
|
ON |
ON |
ON |
ON |
OFF |
1+112 |
|
ON |
ON |
ON |
OFF |
ON |
2+112 |
|
ON |
ON |
ON |
OFF |
OFF |
3+112 |
|
… |
… |
… |
… |
… |
… |
|
OFF |
OFF |
OFF |
OFF |
OFF |
31+112 |
Table 4. Protocol Selection
|
3' Bits |
Communication Protocol |
|
ON |
Emerson monitoring protocol |
|
OFF |
MODBUS-RTU |
The battery inspector's factory address is 112, and the baud rate is 9600bps. Whether the Emerson Monitoring Protocol or the MODBUS-RTU Protocol is chosen, the address of the battery inspector is 112+ address of setting of dial switch. If you choose the Emerson Monitoring Protocol, the baud rate is fixed to 9600bps; if you choose the MODBUS-RTU Protocol, the baud rate is set according to the setting in Table 3.
