Electrical installation – Lenze EMF2113IB User Manual
Page 55
Electrical installation
Wiring
EDKMF2113 DE/EN/FR 5.1
55
l
H1_E_INST−Merker_subdbuchsleiste
Features
Communication
medium
RS485
Network topology
Ring
Maximum number of
controllers
Dependent on INTERBUS master (e.g. Phoenix Contact G4 master).
For the following data, always the smaller value applies dependent on the
fact, whether PCP communication is available or not:
l
with PCP communication:
62 or
l
without PCP communication:
256 / number of PCD
Baud rate
l
500 kbits/s with a distance of 400 m between neighbouring nodes
l
2 Mbits/s with a distance of 150 m between neighbouring nodes
Specification of the transmission cable
General characteristics
Cable type
Sold by the meter,
(e.g. PHOENIX CONTACT: IBS RBC Meter−T, Order No.
28 06 28 6)
Number of conductors
3 × 2, twisted pairs, with shared shield
Conductor cross−section
> 0.2 mm
2
DC cable resistance
< 96
W
/km
Impedance (characteristic)
l
120
W
±
20 % (f = 64 kHz)
l
100
W
±
15
W
(f > 1 MHz)
Capacitance per unit length
< 60 nF/km (f = 800 Hz)