Lenze 2131IB - Manual (Page 17)

Installation
4-5 BA2131EN
Wiring features:
Features:
Communication medium RS485
Network topology without repeater: line
with repeater: line or tree
Possible number of controllers without repeater: 32
with repeater: 127
Maximum cable length 1200 m (depending on the baud rate and the cable type used)
Maximum baud rate 9.6-12000 kbit/s
The connection of the bus system PROFIBUS-DP is shown in the survey drawing. The required
accessories (e.g. connection cables) are listed in chapter 8.1.
1
93XX
82XX
2
3
8200 vector
Fig. 4-3 PROFIBUS with RS485 wiring (without repeater)
1
Host
2 Bus-connector ( ž 4-6)
3 Bus cable ( ž 4-6)
Wiring
Warning!
l If the 2131 fieldbus module is no longer supplied with voltage, the bus system will continue
operation. However, the connected controller can no longer be accessed from the host.
l If single bus participants are to be disconnected, it must be ensured that the bus terminators
at the physical cable ends remain active.
l Only use cables which correspond to the listed specifications (see chapter 8.1).
l Observe the bus connector drawing. ( ž 4-6)
l Connect the controller using the bus connector.
Note: The bus system will not be interrupted if the bus connector is pulled off the controller.
l Connect a bus terminator to the physical bus ends. The bus terminator is integrated into the
bus connector and can be activated via a switch.
l Observe the wiring notes and the documentation for the control system.
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