Lenze EPM-H520 - Manual (Page 66)

Installation
L
66 EDBEPM-H520 DE/EN/FR 4.0
3.2.2 Wiring of system bus (CAN)
Principle structure
Shield CAN- -V CAN+ N.C. CG LO HI CG LO CG LO HI CG LO HI HI
120 120
A
n
A
2
(H520) A
1
h520_006
Fig. 3-2 Wiring of system bus (CAN)
A
1
Bus station 1 A
2
Bus station 2 A
n
Bus station n
! Only connect terminals of the same signal type.
! Features of the signal cable:
Total cable length Up to 300 m 300 to 1000 m
Cable type LIYCY 2 x 2 x 0.5 mm 2 CYPIMF 2 x 2 x 0.5 mm 2 Cab e type
Twisted in pairs with shielding
Pair 1: CAN-LOW (LO) and CAN-HIGH (HI)
Pair 2: 2 GND
Cable resistance ≤40 Ω/km ≤40 Ω/km
Capacitance per unit length ≤130 nF/km ≤60 nF/km
! Connection of bus terminating resistors:
!
One resistor 120 Ω each at the first and last bus station
Features:
! Bus length:
– 25 m at max. 1 Mbit/s data transfer rate
– Up to 1 km at reduced data transfer rate
! Very reliable data transfer (Hamming distance = 6)
! Signal level to ISO 11898
! Up to 63 bus stations possible
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