Table of Contents
Advertisement
9.2
Electrical Interference Suppression
The shield of signal output cable should only be connected one-way to the following electrical device. Signal
wires should be installed separately from load power lines and with a safe distance of at least 0.5 m to
capacitive and inductive interferences such as contactors, relays, motors, switching power supplies, timed
controllers.
If interferences occur in spite of applying all above mentioned measures proceed as follows:
Add RC elements over contactor coils of AC contactors (for example 0.1 μF/100 Ω)
Add recovery diodes over DC inductances
Add RC elements over each drive phase (in connector box of the drive).
Do not connect the GND potential with PE (earth potential)!
9.3 Restart after Fault Clearance
After fault clearance:
1. Reset emergency stop switch.
2. Quit disturbance on the control system.
3. Make sure that no person is located in the danger zone.
4. Start operating as explained in chapter "Operation". The shield oft he signal output cable should
only be connected to one side oft the subsequent electronic. The signal output cable must be passed
separately from power supply lines and a safety distance of at least 0.5 m has to be kept to
inductive and capacitive sources of interference as contactors, relays, motors, power supplies, switch
mode regulators etc.
10 Maintenance
The device is maintenance-free.
26
Interference / Maintenance
Advertisement
Table of Contents
