48
Interface
BMS slave
All IRDH375B are factory set to Slaves (address 3). In a network an address
between 2...30 must be set for each Slave. There may be no gaps of more than
5 subsequent unassigned addresses in order to ensure that all Slaves can be
scanned by the Master.
The correct reception of BMS data is indicated by a fl ashing spot on the display
on the right of the measuring pulse indication.
If no fl ashing spot appears, it may be attributed to the following:
- there is no Master in the network
- there is more than one Master in the network
- RS485 interface (terminal A/B) not connected or reversed
All essential warning and operating messages can be queried from a Master.
The following table gives an overview about the important alarm messages
and the assignment of the messages when they are indicated on an operator
panel.
Message Channel Remark
Insulation fault 1 Insulation resistance < setting Alarm 1
Insulation fault 2 Insulation resistance < setting Alarm 2
Connection system 3 Connection error L1/L2 against system
Connection PE 4 Connection error E/KE against PE
Device error 5 Internal device error
Flashing spot:
BMS data received
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
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