Installation and connection
30
TM800_D00165_00_M_XXEN/06.2015
Legend to wiring diagram
TM800 modules
A
Back of the front plate
B
Mounting plate, installed in the bottom part of the enclosure.
C
I
2
C bus, is used for communication between the modules BM800 (resp. BM400) and the
operating and display modules BI800S. The terminals of the two I
2
C buses must not be
interchanged!
D
I
2
C bus, is used for communication between the modules BM800 (or BM400) and the I/O
modules BMI8/8, BMI8/4 and BMI0/4. The terminals of the two I
2
C buses must not be inter-
changed!
1
Terminal board for connection to the internal and external BMS bus
(
internal bus = terminals iA, iB, iS, external bus = terminals eA, eB, eS)
2
Digital inputs of the I/O module BMI8/4, or BMI8/8
3
Open collector outputs of the I/O module BMI8/8
4
Relay outputs of the I/O module BMI8/4
5
Relay outputs of the I/O module BMI0/4
6
Connection of the supply voltage
U
S
to the terminals 0 and 230 V of the power supply unit.
The standard supply voltage is AC 230 V.
7
Switch S1 to terminate the external BMS bus.
8
Switch S2 to terminate the internal BMS bus.
9
USB connection for programming purposes. Cable: Type A plug on type B plug.
BM800 Module
BI800S
Operating and displaying module to expand each BM800/BM400 module by five pushbut-
tons
BMI8/8
8 digital inputs, 8 open collector outputs.
The open collector outputs are capable of driving a load of up to 15 W, at an operating volt-
age of 24 V. They feature flyback diodes for the connection of relays.
BMI8/4
8 digital inputs, 4 relay outputs
The digital outputs correspond to those of the BMI8/8 module. The potential-free output
relays feature one changeover contact of AC 250 V, 5 A (AC1) each.
BMI0/4
Expansion for BMI8/4 by 4 additional relay outputs. The
BMI0/4 module can only be used in conjunction with BMI8/4. The potential-free output
relays feature one changeover contact of AC 250 V, 5 A (AC1) each.
Mains
Part
Power supply unit of the TM800 alarm indicator and operator panel.
