Activating The Terminating Resistor - Lenze MOBILE DCU Hardware Manual

5.6.8

Activating the terminating resistor

In order to ensure a troublefree operation, a 120 W terminating resistor must be connected
to the last device of a CAN bus.
For Public CAN, the terminating resistor is integrated in each device. It is activated by
ƒ
two bridges:
– Bridge between X31/1 (CAN_H_TERM_PUBLIC) and X31/2 (CAN_H_PUBLIC)
– Bridge between X31/11 (CAN_L_TERM_PUBLIC) and X31/10 (CAN_L_PUBLIC)
For Private CAN. no terminating resistor is integrated. The terminating resistor must
ƒ
be connected externally.
EMDAG2 ... 4
Public CAN
X31 9 2
Fig. 5−2
EMDAG2 ... 4
Private CAN
5
X31 6
Fig. 5−3
EDSMDAG EN 2.0
Connections of MOBILE DCU, PSU, DCU PSU
1 11 3 10 X31
Public CAN: activate terminating resistor
EMDAG2 ... 4
X31
Private CAN: activate terminating resistor
Ò
Activating the terminating resistor
n = 1 + x
EMDAG2 ... 4
Public CAN
9 2 1 11 3 10
n = 1 + x
Private CAN
5
6
Installation
n = 1
EMDAG2 ... 4
Public CAN
X31 9 2 1 11 3 10
HCU
EMDAG044
n = 1
EMDAG2 ... 4
Private CAN
5
X31 6
HCU
EMDAG050
5
61