Trailer Control Module Trcm - BPW ECO Tronic EBS Operating And Installation Instructions

5.1.3 Trailer Control Module TrCM +

Applications
TrCM + is a parking and shunting valve with with an integrated
emergency brake valve for the service brake system and an
overfl ow valve for auxiliary equipment (e.g. air suspension) which
is used in two-line air brake systems in trailers The TrCM
a fl ange-fi tted shunt valve and a parking valve for the service
brake and the spring brake. „Parking Hold" is a new, additional
function, whose effect is that, when coupling, although the
service brake releases, the spring brake cylinders enter/stay in
the braking position.
Before starting the journey, the spring brake cylinder must
be released manually using the parking valve. In particular,
+
the Trailer Control Module satisfi es the requirements of EEC
Braking Systems Directive 71/320 and ECE Regulation R 13.
Technical Data
Operating pressure:
Operating temperature:
Weight:
Pressure limit valve:
Opening pressure:
Closing pressure:
Connection designations
1 = Energy fl ow (coupling head supply)
1-2 = Energy release/fl ow (tank)
2 = Energy release (spring brake)
3 = Venting (spring brake)
4 = Gate terminal (coupling head brake)
12 = Energy release (2-way valve)
21 = Energy release (EBS/ABS)
23 = Energy release (pressure limit valve)
24 = Energy release (pressure limit valve)
25 = Energy release (pressure limit valve)
Fig. 101
Brake Installation
Trailer Control Module TrCM +
Coupling head (yellow)
4
1
Coupling head (red)
EBS Cable
ISO 7638 1
Junction box
ISO 1185 or
Trailer lighting
ISO 12098
Fig. 102
+ has
p = 10 bar
e
- 40° C to + 70°C
approx. 1.7 kg
DIN 74279-C 6-22
p = approx. 6.2 bar
e
p = approx. 5.2 bar
e
Thread
M 22 x 1.5
M 16 x 1.5
M 16 x 1.5
M 16 x 1.5
M 22 x 1.5
M 16 x 1.5
M 16 x 1.5
M 16 x 1.5
M 12 x 1.5
21
12
black red
1 2 2
3
23 24 25
Additional connections
e.g. air suspension
EBS Cable
2 core cable:
24V from brake light (red)
Earth (white)
Trailer Control Module TrCM +
Fig. 100
2
2
12
3
22
1 2
1-2
ABS Cable connection
5.1 Brake system
4
21
23
24
25
25
S1B
S1A
DIAG PWR B PWR A
4
21
1
23
24
59