Electrical installation
29
Electrical installation
Overview
This chapter contains:
• general cabling instructions
• instructions for setting module node address number and bus
termination
• instructions for connecting the module to the PROFIBUS DP
network.
WARNING! Before installation, switch off the drive power supply.
Wait five minutes to ensure that the capacitor bank of the drive is
discharged. Switch off all dangerous voltages connected from
external control circuits to the inputs and outputs of the drive.
General cabling instructions
Arrange the bus cables as far away from the motor cables as
possible. Avoid parallel runs. Use bushings at cable entries.
Bus termination
The DIP switch on the front of the RPBA-01 module is used to
switch on bus termination. Bus termination prevents signal
reflections from the cable ends. Bus termination must be set to ON
if the module is the last or first module on the network. When using
PROFIBUS specific D-sub connectors with built-in termination, the
RPBA-01 termination must be switched off.
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