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Bosch Rexroth AG
Installation
Signal specification
Bus connectors
Signal
+5V
Repeater supply
Repeater control signal
Receive/transmit data
Tab. 7-21:
Signal specification
NOTICE
Do not short-circuit the output.
Do not exceed the maximum current.
The PROFIBUS connectors each have a connectable terminating resistor.
The terminating resistor must always be active at both the first and last bus
node. Carry out the connection as shown in the figures below.
1)
Shield
2)
Bus connection and switch position for first node and last node
3)
Bus connection and switch position for all other nodes
Fig. 7-10:
Preparing a cable for connecting a bus connector
To assemble the bus cable, proceed as follows:
●
Use cable according to DIN EN50170 / 2 edition 1996
●
Strip cable (see figure above)
●
Insert both cores into screw terminal block
DOK-SYTROX-SVP7020-PF*-IT01-EN-P
Sytronix SvP 7020 PFC Variable-Speed Pump Drives
Specification
+5 V (±10%)
Max. 75 mA
TTL-compatible:
●
1: Transmit
●
0: Receive
Output resistance: 350R
V
≤ 0.8 V at I
≤ 2 mA
OL
OL
V
≥ 3.5 V at I
≤ 1 mA
OH
OH
EIA-RS485 standard
Danger of destroying output
"+5V repeater supply" by overload!
