Advertisement
3.3 Wiring note
1.Installing / removing the cable or connector must be done after checking the power supply off.
2.Wiring should not have bare cables exposed between connector contacts.
3.Network cables should be fixed without tension. Cables fixed under tension have potential of causing a
communication fault by to be removed a connector.
4.In order to avoid noise problems, the shield of the bus cable should be grounded by clamping it to a metal
surface connected to PE for proper grounding. Refer to Figure.3-1.
5.A terminating resistor is not built-in the unit. Please provide it.
6.Ensure external emergency stop measures are taken to stop the inverter, in the event of a network fault.
(a) Remove the Power supply of the Inverter when the network master detects a communication fault.
(b) When the master detects a communication fault, turn on the intelligent input terminal which would be
allocated (FRS), (RS) and/or (EXT) function.
7.Figure 3-2 demonstrates Basic components for construction of Profibus-DP application.
Refer to the master's description manuals when Profibus-DP Network system comes into operation.
Functional ground
PROFIBUS-DP
Master
Screen
grounding
clamp
Cable
screen
Figure 3-1 Cable Grounding Wiring Example
RS-232
DP
Profibus DP
Slave node #1
INV
Profibus DP
Slave node #2
Figure 3-2 System Construction Example
CHAPTER 3
Grounding
rail
close to module
Personal Computer
with Configuration
Software
Profibus DP
Slave node #n
INV
7
WIRING, CONNECTING
Advertisement
