Lenze EMZ9374IB - Wiring of the System Bus (CAN)

Electrical installation
Wiring of the system bus (CAN)
6
l
56
EDBMZ9374X DE/EN/FR 4.2
6.4 Wiring of the system bus (CAN)
Principle structure
120 W
120 W
A
1
9374-Master
GNDLOHI PE
GNDLOHI PE
A
n
GNDLOHI PE
A
2
9374-Slave1
GNDLOHI PE
9374-Slave2
GNDLOHI PE
9374-Slave3
GNDLOHI PE
9374_005
A
1
Bus device 1 (controller)
A
2
Bus device 2 (9374 master)
A
n
Bus device n (n = max. 63)
9374 slave1 ... 9374 slave3 communicate with 9374 master (only bus device A
2
)
ƒ Only terminals of the same type must be connected
ƒ Connection of the bus terminating resistors:
– One resistor 120 W on the first and last bus device .
Features:
ƒ CAN−based with bus protocol according to CANopen (CAL−based
Communication Profile DS301)
ƒ Bus expansion:
– 25 m for max. 1 Mbit/s baud rate
– up to 1 km with reduced baud rate
ƒ Extremely reliable data transmission (Hamming distance = 6)
ƒ Signal level to ISO 11898
ƒ Up to 63 bus devices are possible
Specification of the transmission cable
We recommend the use of CAN cables in accordance with ISO 11898−2:
CAN cable in accordance with ISO 11898−2
Cable type Paired with shielding
Impedance
120 W (95 ... 140 W)
Cable resistance
Cable length £ 300 m
£ 70 mW/m
Cable length £ 1000 m
£ 40 mW/m
Signal propagation delay £ 5 ns/m